1
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Olyaei A, Sadeghpour M. Recent advances in the synthesis of highly substituted imidazolidines. RSC Adv 2024; 14:30758-30806. [PMID: 39328874 PMCID: PMC11426194 DOI: 10.1039/d4ra06010e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Accepted: 09/20/2024] [Indexed: 09/28/2024] Open
Abstract
Imidazolidine is a saturated heterocycle with a cyclic aminal core that can be found in natural products and biologically active molecules. Additionally, these heterocyclic compounds have been utilized as chiral ligands, N-heterocyclic carbene precursors, and catalysts in organic synthesis. This review is an attempt to compile the literature of various synthetic procedures of highly substituted imidazolidines, chiral imidazolidines with high diastereoselectivities and enantioselectivities, bis-imidazolidines, and spiro-imidazolidines, as well as their pharmacological properties during the period from 1949 to 2023.
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Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin Iran
| | - Mahdieh Sadeghpour
- Department of Chemistry, Qazvin Branch, Islamic Azad University Qazvin Iran
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2
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Hamed A, Abdel-Razek AS, Abdelwahab AB, El Taweel A, GabAllah M, Sewald N, Shaaban M. Diverse bioactive secondary metabolites from Aspergillus terreus: antimicrobial, anticancer, and anti-SARS-CoV-2 activity studies. Z NATURFORSCH C 2024; 0:znc-2024-0083. [PMID: 38916050 DOI: 10.1515/znc-2024-0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/09/2024] [Indexed: 06/26/2024]
Abstract
Owing to its high interest as prolific source of diverse bioactive compounds referred in our previous research work, we have scaled-up the fermentation of the marine Aspergillus terreus LGO13 on a liquid culture medium to isolate and identify the very minor/further promising bioactive secondary metabolites and to study their antibacterial, cytotoxic, and antiviral properties. Twenty-three known bioactive metabolites, including the recently discovered microbial natural product N-benzoyl-tryptophan (1), were obtained herein. Their structures were determined using HR-ESI-MS 1D/2D NMR spectroscopy and data from the literature. The biological properties of the microbial extract and the resulting compounds were examined using a set of microorganisms, cervix carcinoma KB-3-1, nonsmall cell lung cancer (NSCLC) A549, and coronavirus (SARS-CoV-2), respectively. Molecular docking (MD) simulations were used to investigate the potential targets of the separated metabolites as anti-SARS-CoV-2 drugs. According to the current study, a viral protein that may be the target of anticovid drugs is a papain-like protease (PLpro), and chaetominine (2) appears to be a viable choice against this protein. We evaluated the antiviral efficacy of chaetominine (2), fumitremorgin C (6), and azaspirofuran A (9) against SARS-CoV-2 based on MD data. Chaetominine (2) and azaspirofuran A (9) displayed intermediate selectivity indices (SI = 6.6 and 3.2, respectively), while fumitremorgin C (6) displayed a high selectivity index (SI = 19.77). These findings show that fumitremorgin C has promising antiviral action against SARS-CoV-2.
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Affiliation(s)
- Abdelaaty Hamed
- Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo 11884, Egypt
| | - Ahmed S Abdel-Razek
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
- Microbial Chemistry Department, Institute of Genetic Engineering and Biotechnology Research, National Research Centre, El-Buhouth St. 33, Dokki-Cairo 12622, Egypt
| | - Ahmed B Abdelwahab
- Temisis Therapeutics, 19 avenue de la Forêt de Haye, 54500 Vandœuvre-lès-Nancy, France
| | - Ahmed El Taweel
- Center of Scientific Excellence for Influenza Virus, Environmental Research Division, National Research Centre, Giza 12622, Egypt
| | - Mohamed GabAllah
- Center of Scientific Excellence for Influenza Virus, Environmental Research Division, National Research Centre, Giza 12622, Egypt
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
- Microbial Chemistry Department, Institute of Genetic Engineering and Biotechnology Research, National Research Centre, El-Buhouth St. 33, Dokki-Cairo 12622, Egypt
| | - Mohamed Shaaban
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501 Bielefeld, Germany
- Microbial Chemistry Department, Institute of Genetic Engineering and Biotechnology Research, National Research Centre, El-Buhouth St. 33, Dokki-Cairo 12622, Egypt
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, El-Buhouth St. 33, Dokki-Cairo 12622, Egypt
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3
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Wang WH, Li CR, Qin XJ, Yang XQ, Xie SD, Jiang Q, Zou LH, Zhang YJ, Zhu GL, Zhao P. Novel Alkaloids from Aspergillus fumigatus VDL36, an Endophytic Fungus Associated with Vaccinium dunalianum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10970-10980. [PMID: 38708787 DOI: 10.1021/acs.jafc.4c00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Eleven alkaloids (1-11) including seven new ones, 1-7, were isolated from the solid fermentation of Aspergillus fumigatus VDL36, an endophytic fungus isolated from the leaves of Vaccinium dunalianum Wight (Ericaceae), a perennial evergreen shrub distributed across the Southwest regions of China, Myanmar, and Vietnam. Their structures were elucidated on the basis of extensive spectroscopic methods. The isolates were evaluated for in vitro antifungal activities against five phytopathogenic fungi (Fusarium oxysporum, Coriolus versicolor, Fusarium solani, Botrytis cinerea, Fusarium graminearum). As a result, the new compounds fumigaclavine I (1), 13-ethoxycyclotryprostatin A (5), 13-dehydroxycyclotryprostatin A (6), and 12β-hydroxy-13-oxofumitremorgin C (7) exhibited antifungal activities with MIC values of 7.8-62.5 μg/mL which were comparable to the two positive controls ketoconazole (MIC = 7.8-31.25 μg/mL) and carbendazim (MIC = 1.95-7.8 μg/mL). Furthermore, compounds 1 and 5 demonstrated potent protective and curative effects against the tomato gray mold in vivo. Preliminary structure-activity relationships of the tested indole diketopiperazine alkaloids indicate that the introduction of a substituent group at position C-13 enhances their biological activities.
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Affiliation(s)
- Wei-Hua Wang
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
- Yunnan Key Laboratory of Gastrodia and Fungi Symbiotic Biology, Zhaotong University, Zhaotong 657000, Yunnan, P. R. China
| | - Chu-Ran Li
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Xiao-Qin Yang
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Si-Da Xie
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Qian Jiang
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Li-Hua Zou
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ying-Jun Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Guo-Lei Zhu
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ping Zhao
- Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming 650224, P. R. China
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Xiao D, Wang Y, Gao C, Zhang X, Feng W, Lu X, Feng B. A New Quinazolinone Alkaloid along with Known Compounds with Seed-Germination-Promoting Activity from Rhodiola tibetica Endophytic Fungus Penicillium sp. HJT-A-6. Molecules 2024; 29:2112. [PMID: 38731603 PMCID: PMC11085523 DOI: 10.3390/molecules29092112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
A new quinazolinone alkaloid named peniquinazolinone A (1), as well as eleven known compounds, 2-(2-hydroxy-3-phenylpropionamido)-N-methylbenzamide (2), viridicatin (3), viridicatol (4), (±)-cyclopeptin (5a/5b), dehydrocyclopeptin (6), cyclopenin (7), cyclopenol (8), methyl-indole-3-carboxylate (9), 2,5-dihydroxyphenyl acetate (10), methyl m-hydroxyphenylacetate (11), and conidiogenone B (12), were isolated from the endophytic Penicillium sp. HJT-A-6. The chemical structures of all the compounds were elucidated by comprehensive spectroscopic analysis, including 1D and 2D NMR and HRESIMS. The absolute configuration at C-13 of peniquinazolinone A (1) was established by applying the modified Mosher's method. Compounds 2, 3, and 7 exhibited an optimal promoting effect on the seed germination of Rhodiola tibetica at a concentration of 0.01 mg/mL, while the optimal concentration for compounds 4 and 9 to promote Rhodiola tibetica seed germination was 0.001 mg/mL. Compound 12 showed optimal seed-germination-promoting activity at a concentration of 0.1 mg/mL. Compared with the positive drug 6-benzyladenine (6-BA), compounds 2, 3, 4, 7, 9, and 12 could extend the seed germination period of Rhodiola tibetica up to the 11th day.
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Affiliation(s)
| | | | | | | | | | - Xuan Lu
- College of Life and Health, Dalian University, Dalian 116622, China; (D.X.); (Y.W.); (C.G.); (X.Z.); (W.F.)
| | - Baomin Feng
- College of Life and Health, Dalian University, Dalian 116622, China; (D.X.); (Y.W.); (C.G.); (X.Z.); (W.F.)
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Hanif M, Zahoor AF, Saif MJ, Nazeer U, Ali KG, Parveen B, Mansha A, Chaudhry AR, Irfan A. Exploring the synthetic potential of epoxide ring opening reactions toward the synthesis of alkaloids and terpenoids: a review. RSC Adv 2024; 14:13100-13128. [PMID: 38655462 PMCID: PMC11036177 DOI: 10.1039/d4ra01834f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
Epoxides are oxygen containing heterocycles which are significantly employed as crucial intermediates in various organic transformations. They are considered highly reactive three-membered heterocycles due to ring strain and they undergo epoxide ring opening reactions with diverse range of nucleophiles. Epoxide ring-opening reactions have gained prominence as flexible and effective means to obtain various functionalized molecules. These reactions have garnered substantial attention in organic synthesis, driven by the need to comprehend the synthesis of biologically and structurally important organic compounds. They have also found applications in the synthesis of complex natural products. In this review article, we have summarized the implementation of epoxide ring opening reactions in the synthesis of alkaloids and terpenoids based natural products reported within the last decade (2014-2023).
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Affiliation(s)
- Madiha Hanif
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Muhammad Jawwad Saif
- Department of Applied Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Usman Nazeer
- Department of Chemistry, University of Houston 3585 Cullen Boulevard Texas 77204-5003 USA
| | - Kulsoom Ghulam Ali
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Bushra Parveen
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha P.O. Box 551 Bisha 61922 Saudi Arabia
| | - Ahmad Irfan
- Department of Chemistry, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
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6
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Sonowal S, Gogoi U, Buragohain K, Nath R. Endophytic fungi as a potential source of anti-cancer drug. Arch Microbiol 2024; 206:122. [PMID: 38407579 DOI: 10.1007/s00203-024-03829-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/24/2023] [Accepted: 01/01/2024] [Indexed: 02/27/2024]
Abstract
Endophytes are considered one of the major sources of bioactive compounds used in different aspects of health care including cancer treatment. When colonized, they either synthesize these bioactive compounds as a part of their secondary metabolite production or augment the host plant machinery in synthesising such bioactive compounds. Hence, the study of endophytes has drawn the attention of the scientific community in the last few decades. Among the endophytes, endophytic fungi constitute a major portion of endophytic microbiota. This review deals with a plethora of anti-cancer compounds derived from endophytic fungi, highlighting alkaloids, lignans, terpenes, polyketides, polyphenols, quinones, xanthenes, tetralones, peptides, and spirobisnaphthalenes. Further, this review emphasizes modern methodologies, particularly omics-based techniques, asymmetric dihydroxylation, and biotic elicitors, showcasing the dynamic and evolving landscape of research in this field and describing the potential of endophytic fungi as a source of anticancer drugs in the future.
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Affiliation(s)
- Sukanya Sonowal
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Urvashee Gogoi
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Kabyashree Buragohain
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Ratul Nath
- Microbiology Laboratory, Department of Life Sciences, Dibrugarh University, Dibrugarh, Assam, 786004, India.
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, Assam, 786004, India.
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7
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Sang Z, Zhang Y, Qiu K, Zheng Y, Chen C, Xu L, Lai J, Zou Z, Tan H. Chemical Constituents and Bioactivities of the Plant-Derived Fungus Aspergillus fumigatus. Molecules 2024; 29:649. [PMID: 38338395 PMCID: PMC10856792 DOI: 10.3390/molecules29030649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/11/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
A new bergamotane sesquiterpenoid, named xylariterpenoid H (1), along with fourteen known compounds (2-15), were isolated from the crude extract of Aspergillus fumigatus, an endophytic fungus isolated from Delphinium grandiflorum L. Their structures were elucidated mainly by extensive analyses of NMR and MS spectroscopic data. In addition, the screening results of antibacterial and cytotoxic activities of compounds 1-15 showed that compound 4 displayed antibacterial activities against Staphylococcus aureus and MRSA (methicillin-resistant S. aureus) with an MIC value of 3.12 µg/mL.
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Affiliation(s)
- Zihuan Sang
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
- National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou 341000, China
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
| | - Yanjiang Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
| | - Kaidi Qiu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
| | - Yuting Zheng
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
| | - Chen Chen
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
- National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou 341000, China
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
| | - Li Xu
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
| | - Jiaying Lai
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
| | - Zhenxing Zou
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
| | - Haibo Tan
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Rsearch for Chronic Diseases, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China; (Z.S.); (Y.Z.); (C.C.); (L.X.)
- National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou 341000, China
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (Y.Z.); (K.Q.); (J.L.)
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8
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Panahi F, Bauer F, Breit B. Rhodium-Catalyzed Allylic Addition as an Atom-Efficient Approach in Total Synthesis. Acc Chem Res 2023; 56:3676-3693. [PMID: 38064346 DOI: 10.1021/acs.accounts.3c00322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
ConspectusFinding efficient synthetic methods for the asymmetric synthesis of complex molecules has always been of interest to organic chemists. Creating and controlling the stereochemistry of stereogenic centers bearing branched allylic moieties in organic molecules using a catalytic process is an attractive and successful method for the synthesis of several natural products and medicinally important compounds. Remarkable progress toward their synthesis has been achieved via transition-metal catalysis, especially in the case of allylic substitution and allylic C-H oxidation chemistry. However, for allylic substitution the preinstallation of a leaving group is essential, and for allylic C-H oxidation, stoichiometric amounts of oxidant are required. Besides that, the control of regioselectivity with these methods is often problematic because the linear product can be produced as a major isomer. Our research group has developed a regioselective, enantioselective, and atom economic route toward the more valuable branched product via a Rh-catalyzed coupling of easily accessible alkynes or the double-bond isomeric allenes with pronucleophiles. It was demonstrated that, using this new approach, it is possible to add different pronucleophiles to alkynes or allenes to form branched allylic moieties through C-C and C-heteroatom bond formation. Since new organic reactions offer new opportunities in chemical synthesis and the benchmark for new synthetic methods is their application in target-oriented synthesis, we have demonstrated several successful syntheses of natural products and medicinally relevant targets. For example, in the total syntheses of Quercuslactones, Helicascolides A-C, Epothilone D, Homolargazole, and Thailandepsin B, the Rh-catalyzed hydro-oxycarbonylation of allenes was used as key step via C-O bond formation. Remarkably, the Rh-catalyzed C2-symmetric dimerization strategy was used to synthesize the complex molecules Clavosolide A and Vermiculine, leading to an extreme increase in structural complexity within a single step. For the total syntheses of Centrolobine, Pitavastatin, and Rosuvastatin, C-O bond formation was achieved through the addition of a hydroxy function to the allene moiety. The potential of the addition of nitrogen pronucleophiles to allenes was demonstrated in the total syntheses of Cusparein, Angusterein, Cermicin C, Senepodin G, Homoproline, Pipecolinol, Coniceine, Coniine, Ruxolitinib, Sitagliptin, Abacavir, Glucokinase activators, and Chaetominine. All of these examples testify to the wide applicability of the Rh-catalyzed addition of pronucleophiles to allenes or alkynes in target-oriented synthesis, and in this Account we summarize our contribution.
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Affiliation(s)
- Farhad Panahi
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
| | - Felix Bauer
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
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9
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Kosonocky CW, Feller AL, Wilke CO, Ellington AD. Using alternative SMILES representations to identify novel functional analogues in chemical similarity vector searches. PATTERNS (NEW YORK, N.Y.) 2023; 4:100865. [PMID: 38106612 PMCID: PMC10724362 DOI: 10.1016/j.patter.2023.100865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/09/2023] [Accepted: 10/06/2023] [Indexed: 12/19/2023]
Abstract
Chemical similarity searches are a widely used family of in silico methods for identifying pharmaceutical leads. These methods historically relied on structure-based comparisons to compute similarity. Here, we use a chemical language model to create a vector-based chemical search. We extend previous implementations by creating a prompt engineering strategy that utilizes two different chemical string representation algorithms: one for the query and the other for the database. We explore this method by reviewing search results from nine queries with diverse targets. We find that the method identifies molecules with similar patent-derived functionality to the query, as determined by our validated LLM-assisted patent summarization pipeline. Further, many of these functionally similar molecules have different structures and scaffolds from the query, making them unlikely to be found with traditional chemical similarity searches. This method may serve as a new tool for the discovery of novel molecular structural classes that achieve target functionality.
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Affiliation(s)
- Clayton W. Kosonocky
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78705, USA
| | - Aaron L. Feller
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78705, USA
| | - Claus O. Wilke
- Department of Integrative Biology, University of Texas at Austin, Austin, TX 78705, USA
| | - Andrew D. Ellington
- Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78705, USA
- Center for Systems and Synthetic Biology, University of Texas at Austin, Austin, TX 78705, USA
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10
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Chen Z, She J, Liu J, Peng B, Yuan Z, Zhou X. Pyripyropene U, a new alkaloid from the sponge-derived fungus Aspergillus sp. SCSIO41420. Nat Prod Res 2023:1-6. [PMID: 37990846 DOI: 10.1080/14786419.2023.2284866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/11/2023] [Indexed: 11/23/2023]
Abstract
One new alkaloid, named pyripyropene U (1), and six known natural products (2-7) were obtained from the marine sponge-derived fungus Aspergillus sp. SCSIO41420. Their structures were determined by detailed nuclear magnetic resonance (NMR) and mass spectroscopic (MS) analyses, while the absolute configurations of the new compound were unambiguously confirmed by theoretical electronic circular dichroism (ECD) calculation. Those natural products were evaluated in the antimicrobial tests against various fungi and bacteria, and 7 possessed obvious inhibitory activity against Staphylococcus aureus ATCC 29213.
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Affiliation(s)
- Zhu Chen
- Guangdong Ocean Association, Guangzhou, China
| | - Jianglian She
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Juan Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Bo Peng
- Institute for Environmental and Climate Research, Jinan University, Guangzhou, China
| | - Zhimin Yuan
- Department of Nutrition, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
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11
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Fredimoses M, Ai W, Lin X, Zhou X, Liao S, Pan L, Liu Y. Two new Aspera chaetominines A and B, and a new derivative of terrein, isolated from marine sponge associated fungus Aspergillus versicolour SCSIO XWS04 F52. Nat Prod Res 2023:1-13. [PMID: 37933448 DOI: 10.1080/14786419.2023.2275744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 10/22/2023] [Indexed: 11/08/2023]
Abstract
Two new alkaloids, Aspera chaetominines A (1) and B (2), a new derivative (3) of terrein, and together with 11 known compounds (4-14) were isolated from marine sponge Callyspongia sp. -derived fungus Aspergillus versicolour SCSIO XWS04 F52, which was identified on the basis of morphology and ITS sequence analysis. The planar structures of 1-3 were determined by spectroscopic (1H, 13C NMR, HSQC, HMBC, and 1H-1H COSY), and MS analysis. Compounds 1 and 2 showed cytotoxic activity against leukaemia K562 and colon cancer cells SW1116 with IC50 7.5 to 12.5 μM, and also compounds 1 and 2 exhibited significant protection against H1N1 virus-induced cytopathogenicity in MDCK cells with IC50 values of 15.5 and 24.5 μM, respectively.
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Affiliation(s)
- Mangaladoss Fredimoses
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, P.R. China
| | - Wen Ai
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
| | - Xiuping Lin
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
| | - Xuefeng Zhou
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
| | - Shengrong Liao
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
| | - Li Pan
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, P.R. China
| | - Yonghong Liu
- Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Guangzhou, P.R. China
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12
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Liu JQ, Zhang SQ, Wu XH, Liu SX, Yang RD, Deng L, Cai L. A new benzophenone derivative from Aspergillus fumigatus WJ-131. Nat Prod Res 2023:1-10. [PMID: 37732607 DOI: 10.1080/14786419.2023.2260071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 09/09/2023] [Indexed: 09/22/2023]
Abstract
A new benzophenone derivative, 8'-hydroxymonomethylsulochrin (1), together with eighteen known compounds (2-19) were produced by the endophytic fungus Aspergillus fumigatus WJ-131, isolated from the stem of Gardenia jasminoides. The structure of 1 was determined by extensive spectroscopic analysis and X-ray crystallography. Under the condition of concentration of 20.0 μM, the splenic lymphocytes proliferation rates of compounds 1 and 7 induced by LPS were 39.4% and 38.1% (LPS, the splenic lymphocytes cell proliferation rates of 21.3%), and the splenic lymphocytes proliferation rate of compounds 7 induced by ConA is 44.6% (ConA, the splenic lymphocytes proliferation rates of 28.9%). Therefore, compounds 1 and 7 promoted the proliferation of ConA/LPS-stimulated splenic lymphocytes at 20.0 μM in vitro. In addition, compound 1 showed weak antibacterial activity against Fusarium oxysporum.
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Affiliation(s)
- Jia-Qi Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
| | - Sheng-Qi Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
| | - Xiu-Hong Wu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
| | - Shuai-Xing Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
| | - Rui-Dang Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
| | - Liang Deng
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, PR China
| | - Le Cai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, PR China
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13
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Song T, Wang K, Yuan Q, Zhang W. Nickel-Catalyzed Hydroamination and Hydroalkoxylation of Enelactams with Unactivated Amines and Alcohols. Org Lett 2023; 25:6093-6098. [PMID: 37560920 DOI: 10.1021/acs.orglett.3c02341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Nickel-catalyzed hydroamination and hydroalkoxylation of enelactams with unactivated amines and alcohols are reported. This method showed good functional group tolerance and delivered the corresponding hydrofunctionalized products in good to excellent yields (≤98%). Furthermore, an intramolecular hydroalkoxylation of an enelactam was also realized, giving a cyclization product in a good yield. Mechanistic studies indicated that tBuI acts as a hydride donor and radical precursor, which is crucial for the success of the reaction.
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Affiliation(s)
- Tao Song
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Kuiyang Wang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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14
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Zhgun AA. Fungal BGCs for Production of Secondary Metabolites: Main Types, Central Roles in Strain Improvement, and Regulation According to the Piano Principle. Int J Mol Sci 2023; 24:11184. [PMID: 37446362 PMCID: PMC10342363 DOI: 10.3390/ijms241311184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Filamentous fungi are one of the most important producers of secondary metabolites. Some of them can have a toxic effect on the human body, leading to diseases. On the other hand, they are widely used as pharmaceutically significant drugs, such as antibiotics, statins, and immunosuppressants. A single fungus species in response to various signals can produce 100 or more secondary metabolites. Such signaling is possible due to the coordinated regulation of several dozen biosynthetic gene clusters (BGCs), which are mosaically localized in different regions of fungal chromosomes. Their regulation includes several levels, from pathway-specific regulators, whose genes are localized inside BGCs, to global regulators of the cell (taking into account changes in pH, carbon consumption, etc.) and global regulators of secondary metabolism (affecting epigenetic changes driven by velvet family proteins, LaeA, etc.). In addition, various low-molecular-weight substances can have a mediating effect on such regulatory processes. This review is devoted to a critical analysis of the available data on the "turning on" and "off" of the biosynthesis of secondary metabolites in response to signals in filamentous fungi. To describe the ongoing processes, the model of "piano regulation" is proposed, whereby pressing a certain key (signal) leads to the extraction of a certain sound from the "musical instrument of the fungus cell", which is expressed in the production of a specific secondary metabolite.
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Affiliation(s)
- Alexander A Zhgun
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky Prosp. 33-2, 119071 Moscow, Russia
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15
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Luo X, Xu MM, Xu XP, Ji SJ. NBS-induced intramolecular annulation reactions for the divergent synthesis of fused- and spirocyclic indolines. Chem Commun (Camb) 2023; 59:6576-6579. [PMID: 37183546 DOI: 10.1039/d3cc01920a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
An NBS-induced intramolecular annulation of 3-(1H-indol-3-yl)-N-alkoxypropanamide is described. The reactions proceed well and quickly under mild conditions with the help of a base. It was found that C2-substituents on the indole ring in 3-(1H-indol-3-yl)-N-alkoxypropanamide have a great influence upon the reaction. By using C2-methyl- and C2-phenyl-3-(1H-indol-3-yl)-N-alkoxypropanamide as templates, practical protocols for the divergent synthesis of fused- and spirocyclic indoline compounds were studied and established.
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Affiliation(s)
- Xian Luo
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
| | - Meng-Meng Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
- Innovation Center for Chemical Science, Soochow University, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
- Suzhou Baolidi Functional Materials Research Institute, Suzhou 215144, People's Republic of China
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16
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Wu L, Qu J, Chen Y. Merging Alkene Isomerization Enables Difunctionalization of Cyclic Enamines toward Ring-Fused Aminal Synthesis. Org Lett 2023; 25:992-997. [PMID: 36746651 DOI: 10.1021/acs.orglett.3c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Here we report a Pd-catalyzed isomerization of alicyclic allyl amine to achieve the unprecedented α,β-difunctionalization of synthetically inaccessible trisubstituted cyclic enamine. The dual role of in situ formed enamine intermediate allows for the intermolecular formal [4 + 2] reaction with acrylamide or isatoic anhydride to simultaneously construct the C-C bond and C-N bond, thus realizing the expedient construction of [4.3.0]-aminal with excellent diastereoselectivity and high atom economy.
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Affiliation(s)
- Licheng Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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17
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Yu L, Huang S, Cai T, Du K, Wu C, Dong H, Shen R. Diastereoselective Access to Triazolo[1,2- a]indolines via a Bio-Inspired Oxidative Cyclization of NH-Indoles. J Org Chem 2022; 87:15114-15119. [PMID: 36201282 DOI: 10.1021/acs.joc.2c01593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Establishing three-dimensional chemicals by using the C2-C3 π bond of indoles has always been a research hotspot in organic synthesis; however, employing the oxidative C2-C3 π bond of indoles to generate imine which would lead to the N1-C2 π bond cyclization under metal-free conditions is still rare. Here, we report a bio-inspired synthesis of triazolo[1,2-a]indolines by the oxidative cyclization between NH-indoles and azomethine imines with 3,3-dimethyldioxirane as the sole oxidant under metal-free and mild conditions. This finding represents an elegant instance of tri-functionalization of NH-indoles, which provides rapid access to a broad range of triazolo[1,2-a]indolines with tetrahydroisoquinolines in one single step. Up to 86% yield and above 20:1 dr value are observed. The radical mechanism and proton migration process have been speculated.
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Affiliation(s)
- Lemao Yu
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing312000, China
| | - Senhao Huang
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing312000, China
| | - Tao Cai
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing312000, China
| | - Kui Du
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing312000, China
| | - Chunlei Wu
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing312000, China
| | - Huaping Dong
- School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing312000, China
| | - Runpu Shen
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin, Shaoxing312000, China
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18
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Xiao J, Ma Q, Cai R, Miao J, Yan Z, Yang X, Chen Y. Acute Anti-Cancer Activity of Crude Extracts from two Endophytic Fungi Chaetomium cochliodes and Penicillium Sp. in Cancer Cell Lines and Mice. INT J PHARMACOL 2022. [DOI: 10.3923/ijp.2022.1583.1592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Natural quinazolinones: From a treasure house to promising anticancer leads. Eur J Med Chem 2022; 245:114915. [DOI: 10.1016/j.ejmech.2022.114915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/26/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
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20
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Cong M, Zhang Y, Feng X, Pang X, Liu Y, Zhang X, Yang Z, Wang J. Anti-inflammatory alkaloids from the cold-seep-derived fungus Talaromyces helicus SCSIO41311. 3 Biotech 2022; 12:161. [PMID: 35818470 PMCID: PMC9270513 DOI: 10.1007/s13205-022-03237-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/18/2022] [Indexed: 11/30/2022] Open
Abstract
One new natural alkaloid, chaetominine B (1), together with twenty known compounds was isolated from the South China Sea cold-seep-derived fungus Talaromyces helicus SCSIO41311. Their structures were elucidated on the basis of nuclear magnetic resonance spectrum (NMR), mass spectrometry (MS) and ECD calculation, as well as comparing with previous literatures. Among them, twelve compounds showed potent NO inhibitory activities and two of them, azaspirofurans A (13) and fumiquinones B (21), exhibited NO inhibitory effects more than the positive control eicosapentaenoic acid (EPA) with IC50 values of 9.65 and 15.54 μM, respectively. Moreover, compound 13 attenuated LPS-induced imbalance of cytokines release such as TNF-α, IL-1β, IL-4, and IL-10. Additionally, the NMR data and absolute configuration of compound 20 were first reported. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03237-9.
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21
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Zhang R, Wang H, Chen B, Dai H, Sun J, Han J, Liu H. Discovery of Anti-MRSA Secondary Metabolites from a Marine-Derived Fungus Aspergillus fumigatus. Mar Drugs 2022; 20:302. [PMID: 35621953 PMCID: PMC9146929 DOI: 10.3390/md20050302] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 12/30/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), a WHO high-priority pathogen that can cause great harm to living beings, is a primary cause of death from antibiotic-resistant infections. In the present study, six new compounds, including fumindoline A-C (1-3), 12β, 13β-hydroxy-asperfumigatin (4), 2-epi-tryptoquivaline F (17) and penibenzophenone E (37), and thirty-nine known ones were isolated from the marine-derived fungus Aspergillus fumigatus H22. The structures and the absolute configurations of the new compounds were unambiguously assigned by spectroscopic data, mass spectrometry (MS), electronic circular dichroism (ECD) spectroscopic analyses, quantum NMR and ECD calculations, and chemical derivatizations. Bioactivity screening indicated that nearly half of the compounds exhibit antibacterial activity, especially compounds 8 and 11, and 33-38 showed excellent antimicrobial activities against MRSA, with minimum inhibitory concentration (MIC) values ranging from 1.25 to 2.5 μM. In addition, compound 8 showed moderate inhibitory activity against Mycobacterium bovis (MIC: 25 μM), compound 10 showed moderate inhibitory activity against Candida albicans (MIC: 50 μM), and compound 13 showed strong inhibitory activity against the hatching of a Caenorhabditis elegans egg (IC50: 2.5 μM).
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Affiliation(s)
- Rui Zhang
- Key Laboratory of Structure-Based Drug Design & Discovery of Education, College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (R.Z.); (H.W.)
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
| | - Haifeng Wang
- Key Laboratory of Structure-Based Drug Design & Discovery of Education, College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (R.Z.); (H.W.)
| | - Baosong Chen
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
| | - Huanqin Dai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
| | - Jingzu Sun
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
| | - Junjie Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
| | - Hongwei Liu
- Key Laboratory of Structure-Based Drug Design & Discovery of Education, College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; (R.Z.); (H.W.)
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (B.C.); (H.D.); (J.S.)
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de Sá JDM, Kumla D, Dethoup T, Kijjoa A. Bioactive Compounds from Terrestrial and Marine-Derived Fungi of the Genus Neosartorya †. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072351. [PMID: 35408769 PMCID: PMC9000665 DOI: 10.3390/molecules27072351] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 11/21/2022]
Abstract
Fungi comprise the second most species-rich organism group after that of insects. Recent estimates hypothesized that the currently reported fungal species range from 3.5 to 5.1 million types worldwide. Fungi can grow in a wide range of habitats, from the desert to the depths of the sea. Most develop in terrestrial environments, but several species live only in aquatic habitats, and some live in symbiotic relationships with plants, animals, or other fungi. Fungi have been proved to be a rich source of biologically active natural products, some of which are clinically important drugs such as the β-lactam antibiotics, penicillin and cephalosporin, the immunosuppressant, cyclosporine, and the cholesterol-lowering drugs, compactin and lovastatin. Given the estimates of fungal biodiversity, it is easy to perceive that only a small fraction of fungi worldwide have ever been investigated regarding the production of biologically valuable compounds. Traditionally, fungi are classified primarily based on the structures associated with sexual reproduction. Thus, the genus Neosartorya (Family Trichocomaceae) is the telemorphic (sexual state) of the Aspergillus section known as Fumigati, which produces both a sexual state with ascospores and an asexual state with conidiospores, while the Aspergillus species produces only conidiospores. However, according to the Melbourne Code of nomenclature, only the genus name Aspergillus is to be used for both sexual and asexual states. Consequently, the genus name Neosartorya was no longer to be used after 1 January 2013. Nevertheless, the genus name Neosartorya is still used for the fungi that had already been taxonomically classified before the new rule was in force. Another aspect is that despite the small number of species (23 species) in the genus Neosartorya, and although less than half of them have been investigated chemically, the chemical diversity of this genus is impressive. Many chemical classes of compounds, some of which have unique scaffolds, such as indole alkaloids, peptides, meroterpenes, and polyketides, have been reported from its terrestrial, marine-derived, and endophytic species. Though the biological and pharmacological activities of a small fraction of the isolated metabolites have been investigated due to the available assay systems, they exhibited relevant biological and pharmacological activities, such as anticancer, antibacterial, antiplasmodial, lipid-lowering, and enzyme-inhibitory activities.
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Affiliation(s)
- Joana D. M. de Sá
- Laboratório de Química Orgânica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Decha Kumla
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar and CIIMAR, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
| | - Tida Dethoup
- Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkok 10240, Thailand;
| | - Anake Kijjoa
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar and CIIMAR, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Correspondence: ; Tel.: +351-22-042-8331; Fax: +351-22-206-2232
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23
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Hussein ME, Mohamed OG, El-Fishawy AM, El-Askary HI, El-Senousy AS, El-Beih AA, Nossier ES, Naglah AM, Almehizia AA, Tripathi A, Hamed AA. Identification of Antibacterial Metabolites from Endophytic Fungus Aspergillus fumigatus, Isolated from Albizia lucidior Leaves (Fabaceae), Utilizing Metabolomic and Molecular Docking Techniques. Molecules 2022; 27:molecules27031117. [PMID: 35164382 PMCID: PMC8839868 DOI: 10.3390/molecules27031117] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022] Open
Abstract
The rapid spread of bacterial infection caused by Staphylococcus aureus has become a problem to public health despite the presence of past trials devoted to controlling the infection. Thus, the current study aimed to explore the chemical composition of the extract of endophytic fungus Aspergillus fumigatus, isolated from Albizia lucidior leaves, and investigate the antimicrobial activity of isolated metabolites and their probable mode of actions. The chemical investigation of the fungal extract via UPLC/MS/MS led to the identification of at least forty-two metabolites, as well as the isolation and complete characterization of eight reported metabolites. The antibacterial activities of isolated metabolites were assessed against S. aureus using agar disc diffusion and microplate dilution methods. Compounds ergosterol, helvolic acid and monomethyl sulochrin-4-sulphate showed minimal inhibitory concentration (MIC) values of 15.63, 1.95 and 3.90 µg/mL, respectively, compared to ciprofloxacin. We also report the inhibitory activity of the fungal extract on DNA gyrase and topoisomerase IV, which led us to perform molecular docking using the three most active compounds isolated from the extract against both enzymes. These active compounds had the required structural features for S. aureus DNA gyrase and topoisomerase IV inhibition, evidenced via molecular docking.
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Affiliation(s)
- Mai E. Hussein
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., Cairo 11562, Egypt; (O.G.M.); (A.M.E.-F.); (H.I.E.-A.); (A.S.E.-S.)
- Correspondence:
| | - Osama G. Mohamed
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., Cairo 11562, Egypt; (O.G.M.); (A.M.E.-F.); (H.I.E.-A.); (A.S.E.-S.)
- Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Ahlam M. El-Fishawy
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., Cairo 11562, Egypt; (O.G.M.); (A.M.E.-F.); (H.I.E.-A.); (A.S.E.-S.)
| | - Hesham I. El-Askary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., Cairo 11562, Egypt; (O.G.M.); (A.M.E.-F.); (H.I.E.-A.); (A.S.E.-S.)
| | - Amira S. El-Senousy
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr el Aini St., Cairo 11562, Egypt; (O.G.M.); (A.M.E.-F.); (H.I.E.-A.); (A.S.E.-S.)
| | - Ahmed A. El-Beih
- Department of Chemistry of Natural and Microbial Products, National Research Centre, Dokki, Giza 12622, Egypt;
| | - Eman S. Nossier
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt;
| | - Ahmed M. Naglah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.M.N.); (A.A.A.)
| | - Abdulrahman A. Almehizia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (A.M.N.); (A.A.A.)
| | - Ashootosh Tripathi
- Natural Products Discovery Core, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA;
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ahmed A. Hamed
- Microbial Chemistry Department, National Research Centre, 33 El-Buhouth Street, Dokki, Giza 12622, Egypt;
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24
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Khan H, Alam W, Alsharif KF, Aschner M, Pervez S, Saso L. Alkaloids and Colon Cancer: Molecular Mechanisms and Therapeutic Implications for Cell Cycle Arrest. Molecules 2022; 27:molecules27030920. [PMID: 35164185 PMCID: PMC8838632 DOI: 10.3390/molecules27030920] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 12/18/2022] Open
Abstract
Cancer is the second most fatal disease worldwide, with colon cancer being the third most prevalent and fatal form of cancer in several Western countries. The risk of acquisition of resistance to chemotherapy remains a significant hurdle in the management of various types of cancer, especially colon cancer. Therefore, it is essential to develop alternative treatment modalities. Naturally occurring alkaloids have been shown to regulate various mechanistic pathways linked to cell proliferation, cell cycle, and metastasis. This review aims to shed light on the potential of alkaloids as anti-colon-cancer chemotherapy agents that can modulate or arrest the cell cycle. Preclinical investigated alkaloids have shown anti-colon cancer activities and inhibition of cancer cell proliferation via cell cycle arrest at different stages, suggesting that alkaloids may have the potential to act as anticancer molecules.
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Affiliation(s)
- Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
- Correspondence: or
| | - Waqas Alam
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
| | - Khalaf F. Alsharif
- Department of Clinical Laboratory, College of Applied Medical Science, Taif University, P.O. Box 11099,Taif 21944, Saudi Arabia;
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
| | - Samreen Pervez
- Department of Pharmacy, Qurtuba University of Science and Information Technology, Peshawar 29050, Pakistan;
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University of Rome, 00185 Rome, Italy;
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25
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Hridoy M, Gorapi MZH, Noor S, Chowdhury NS, Rahman MM, Muscari I, Masia F, Adorisio S, Delfino DV, Mazid MA. Putative Anticancer Compounds from Plant-Derived Endophytic Fungi: A Review. Molecules 2022; 27:296. [PMID: 35011527 PMCID: PMC8746379 DOI: 10.3390/molecules27010296] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 02/05/2023] Open
Abstract
Endophytic fungi are microorganisms that exist almost ubiquitously inside the various tissues of living plants where they act as an important reservoir of diverse bioactive compounds. Recently, endophytic fungi have drawn tremendous attention from researchers; their isolation, culture, purification, and characterization have revealed the presence of around 200 important and diverse compounds including anticancer agents, antibiotics, antifungals, antivirals, immunosuppressants, and antimycotics. Many of these anticancer compounds, such as paclitaxel, camptothecin, vinblastine, vincristine, podophyllotoxin, and their derivatives, are currently being used clinically for the treatment of various cancers (e.g., ovarian, breast, prostate, lung cancers, and leukemias). By increasing the yield of specific compounds with genetic engineering and other biotechnologies, endophytic fungi could be a promising, prolific source of anticancer drugs. In the future, compounds derived from endophytic fungi could increase treatment availability and cost effectiveness. This comprehensive review includes the putative anticancer compounds from plant-derived endophytic fungi discovered from 1990 to 2020 with their source endophytic fungi and host plants as well as their antitumor activity against various cell lines.
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Affiliation(s)
- Md. Hridoy
- Department of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
- Department of Pharmaceutical Sciences, School of Pharmacy, Temple University, Philadelphia, PA 19140, USA
| | | | - Sadia Noor
- Department of Pharmacy, University of Asia Pacific, Dhaka 1215, Bangladesh; (M.Z.H.G.); (S.N.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | | | | | - Isabella Muscari
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (I.M.); (F.M.)
| | - Francesco Masia
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (I.M.); (F.M.)
| | - Sabrina Adorisio
- Department of Medicine and Surgery, Foligno Nursing School and Section of Pharmacology, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy;
| | - Domenico V. Delfino
- Department of Medicine and Surgery, Foligno Nursing School and Section of Pharmacology, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy;
| | - Md. Abdul Mazid
- Department of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
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26
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Sivanandan ST, Chauhan D, Namboothiri I. One‐pot regio‐ and diastereoselective synthesis of tetrahydro‐α‐carbolines via cascade reactions of iminoindolines with Morita‐Baylis‐Hillman bromides of nitroalkenes. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Zhou X, Feng X, Wang D, Chen D, Wu G, Yan Z, Lyu X, Wang H, Yang JM, Zhao Y. Synthesis and bioactivity studies of covalent inhibitors derived from (-)-Chaetominine. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Song Z, Liu Y, Gao J, Hu J, He H, Dai S, Wang L, Dai H, Zhang L, Song F. Antitubercular metabolites from the marine-derived fungus strain Aspergillus fumigatus MF029. Nat Prod Res 2021; 35:2647-2654. [PMID: 34414849 DOI: 10.1080/14786419.2019.1660331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
During the systematic screening of bioactive compounds from our marine natural product library, crude extract of the marine-derived fungus strain Aspergillus fumigatus MF029 exhibited moderate bioactivities against Bacillus subtilis, Staphylococcus aureus, methicillin-resistant S. aureus, and Mycobacterium bovis bacillus Calmette-Guérin (BCG). Further chemical investigation resulted in the identification of two new compounds, chaetominine A (1) and sphingofungin I (2), together with four known compounds, emodin (3), chaetominine (4), sphingofungin D (5) and trypacidin (6). Trypacidin displayed potential antitubercular activity with MIC value of 1.25 μg/mL.
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Affiliation(s)
- Zhijun Song
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yu Liu
- China Astronaut Research and Training Center, Beijing, China
| | - Jieyu Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,School of Food and biological Engineering, Hefei University of Technology, Hefei, China
| | - Jiansen Hu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hongtao He
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Shengwang Dai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Luoqiang Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Huanqin Dai
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Lixin Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science of Technology, Shanghai, China
| | - Fuhang Song
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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29
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Aksenov AV, Grishin IY, Aksenov NA, Malyuga VV, Aksenov DA, Nobi MA, Rubin M. Electrophilically Activated Nitroalkanes in Synthesis of 3,4-Dihydroquinozalines. Molecules 2021; 26:4274. [PMID: 34299549 PMCID: PMC8306411 DOI: 10.3390/molecules26144274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022] Open
Abstract
Nitroalkanes activated with polyphosphoric acid serve as efficient electrophiles in reactions with various nucleophilic amines. Strategically placed second functionality allows for the design of annulation reactions enabling preparation of various heterocycles. This strategy was employed to develop an innovative synthetic approach towards 3,4-dihydroquinazolines from readily available 2-(aminomethyl)anilines.
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Affiliation(s)
- Alexander V. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Igor Yu. Grishin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Nicolai A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Vladimir V. Malyuga
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Dmitrii A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
| | - Mezvah A. Nobi
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS 66045, USA;
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., 355017 Stavropol, Russia; (I.Y.G.); (N.A.A.); (V.V.M.); (D.A.A.)
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS 66045, USA;
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30
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Zou R, Wei C, Zhang X, Zhou D, Xu J. Alkaloids from endophytic fungus Aspergillus fumigatus HQD24 isolated from the Chinese mangrove plant Rhizophora mucronata. Nat Prod Res 2021; 36:5069-5073. [PMID: 34180322 DOI: 10.1080/14786419.2021.1916017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Chemical investigation of endophytic fungus Aspergillus fumigatus HQD24, isolated from the flower of Rhizophora mucronata led to the isolation of eight alkaloids, including pyripyropene A (1), 1,11-dideacetyl-pyripyropene A (2), pyripyropene E (3), chaetominine (4), tryptoquivaline J (5), fumitremorgin C (6), 1-acetyl-β-carboline (7), and nicotinic acid (8). Their structures were unambiguously elucidated on the basis of extensive spectroscopic data and comparison with the data of literature. Compound 2 was known as a synthetic product and isolated as a natural product for the first time. The immunosuppressive and cytotoxic activities of all isolated compounds were evaluated.
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Affiliation(s)
- Renjian Zou
- Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University, Haikou, P.R. China
| | - Chengwen Wei
- Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University, Haikou, P.R. China
| | - Xuexia Zhang
- Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University, Haikou, P.R. China
| | - Dongdong Zhou
- Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University, Haikou, P.R. China
| | - Jing Xu
- Hainan Provincial Fine Chemical Engineering Research Center, School of Chemical Engineering and Technology, Hainan University, Haikou, P.R. China
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31
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Zhao T, Zhang XY, Deng RS, Tan Z, Chen GY, Nong XH. Three new unsaturated fatty acids from marine-derived fungus Aspergillus sp. SCAU150. Nat Prod Res 2021; 36:3965-3971. [PMID: 33764238 DOI: 10.1080/14786419.2021.1903002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Four unsaturated fatty acid derivatives including three new pantheric acids (1-3), together with three known polyketides (5-7), were isolated from a culture broth of the marine-derived fungus Aspergillus sp. SCAU150. Their complete structures were determined by NMR and HRESIMS data analyses. The antifungal activity of the isolated compounds above was evaluated and 2 was found to show moderated activity toward the phytopathogenic fungus Fusarium solani bio-80814 with an inhibition zone diameter of 6 mm under 5 µg/disc.
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Affiliation(s)
- Ting Zhao
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou, Hainan, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, China
| | - Xiao-Yong Zhang
- College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Ran-Sha Deng
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou, Hainan, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, China
| | - Zhen Tan
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou, Hainan, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou, Hainan, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, China
| | - Xu-Hua Nong
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, Hainan Normal University, Haikou, Hainan, China.,Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, China
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32
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Wang Y, Zheng Z, Yuan Y, Wang M, Guo Z, Jiang YY, Bai LP, Li Y. Cascade C–N bond cleavage of amides/intramolecular amination reactions: an atom economical way to α-cabolin-4-ones. Org Chem Front 2021. [DOI: 10.1039/d0qo01257b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel one-pot procedure for the synthesis of 2,3-disubstituted α-carbolin-4-ones through successive C–N bond cleavage and intramolecular amination reactions involving a 1,2-acyl migration has been developed.
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Affiliation(s)
- Ye Wang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Zhong Zheng
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Yang Yuan
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Mengdan Wang
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Zixia Guo
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine
- and Macau Institute for Applied Research in Medicine and Health
- Macau University of Science and Technology
- Taipa
- Macau
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai
- China
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33
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Baranova AA, Alferova VA, Korshun VA, Tyurin AP. Antibiotics from Extremophilic Micromycetes. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020; 46:903-971. [PMID: 33390684 PMCID: PMC7768999 DOI: 10.1134/s1068162020060023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 12/03/2022]
Abstract
Extremophilic microorganisms, which are capable of functioning normally at extremely high or low temperatures, pressure, and in other environmental conditions, have been in the focus of microbiologists' attention for several decades due to the biotechnological potential of enzymes inherent in extremophiles. These enzymes (also called extremozymes) are used in the production of food and detergents and other industries. At the same time, the inhabitants of extreme econiches remained almost unexplored for a long time in terms of the chemistry of natural compounds. In recent years, the emergence of new antibiotic-resistant strains of pathogens, which affect humans and animals has become a global problem. The problem is compounded by a strong slowdown in the development of new antibiotics. In search of new active substances and scaffolds for medical chemistry, researchers turn to unexplored natural sources. In recent years, there has been a sharp increase in the number of studies on secondary metabolites produced by extremophiles. From the discovery of penicillin to the present day, micromycetes, along with actinobacteria, are one of the most productive sources of antibiotic compounds for medicine and agriculture. Many authors consider extremophilic micromycetes as a promising source of small molecules with an unusual mechanism of action or significant structural novelty. This review summarizes the latest (for 2018-2019) experimental data on antibiotic compounds, which are produced by extremophilic micromycetes with various types of adaptation. Active metabolites are classified by the type of structure and biosynthetic origin. The data on the biological activity of the isolated metabolites are summarized.
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Affiliation(s)
- A. A. Baranova
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
| | - V. A. Alferova
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
| | - V. A. Korshun
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
| | - A. P. Tyurin
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
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34
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Plescia F, Maggio B, Daidone G, Raffa D. 4-(3H)-quinazolinones N-3 substituted with a five membered heterocycle: A promising scaffold towards bioactive molecules. Eur J Med Chem 2020; 213:113070. [PMID: 33309162 DOI: 10.1016/j.ejmech.2020.113070] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/21/2020] [Accepted: 11/28/2020] [Indexed: 01/05/2023]
Abstract
The quinazolinone nucleus represents, among the class of fused heterocycles, a very important scaffold to obtain molecules with biological activities. A review of literature revealed how such kind of fused heterocycles, coming from natural or synthetic source, are associated with a wide range of biological activities. This review is mainly directed towards the 4-(3H)-quinazolinones N-3 substituted with a five membered heterocycle in which all the possible combinations of nitrogen, sulfur and oxygen atoms are present.
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Affiliation(s)
- Fabiana Plescia
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche - Sezione di Chimica e Tecnologie Farmaceutiche - Università Degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Benedetta Maggio
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche - Sezione di Chimica e Tecnologie Farmaceutiche - Università Degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Giuseppe Daidone
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche - Sezione di Chimica e Tecnologie Farmaceutiche - Università Degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Demetrio Raffa
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche - Sezione di Chimica e Tecnologie Farmaceutiche - Università Degli Studi di Palermo, Via Archirafi 32, 90123, Palermo, Italy.
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35
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Zhang X, Cheng B, Li H, He Y, Xu W, Duan X, Sun H, Wang T, Zhai H. Synthesis of Hydrobenzoimidazoles from
para
‐Quinamines and 1,3,5‐Triazinanes via a Formal [3+2] Annulation Reaction. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xinping Zhang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Bin Cheng
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Hui Li
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Yixuan He
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Wei Xu
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Xiaoguang Duan
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 People's Republic of China
| | - Haiyan Sun
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Taimin Wang
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
| | - Hongbin Zhai
- Institute of Marine Biomedicine/Hoffmann Institute of Advanced Materials Shenzhen Polytechnic Shenzhen 518055 People's Republic of China
- State Key Laboratory of Chemical Oncogenomics Shenzhen Engineering Laboratory of Nano Drug Slow-Release Peking University Shenzhen Graduate School Shenzhen 518055 People's Republic of China
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36
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Genome-Inspired Chemical Exploration of Marine Fungus Aspergillus fumigatus MF071. Mar Drugs 2020; 18:md18070352. [PMID: 32640519 PMCID: PMC7401266 DOI: 10.3390/md18070352] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 01/01/2023] Open
Abstract
The marine-derived fungus Aspergillus fumigatus MF071, isolated from sediment collected from the Bohai Sea, China, yielded two new compounds 19S,20-epoxy-18-oxotryprostatin A (1) and 20-hydroxy-18-oxotryprostatin A (2), in addition to 28 known compounds (3-30). The chemical structures were established on the basis of 1D, 2D NMR and HRESIMS spectroscopic data. This is the first report on NMR data of monomethylsulochrin-4-sulphate (4) and pseurotin H (10) as naturally occurring compounds. Compounds 15, 16, 20, 23, and 30 displayed weak antibacterial activity (minimum inhibitory concentration: 100 μg/mL). Compounds 18 and 19 exhibited strong activity against S. aureus (minimum inhibitory concentration: 6.25 and 3.13 μg/mL, respectively) and E. coli (minimum inhibitory concentration: 6.25 and 3.13 μg/mL, respectively). A genomic data analysis revealed the putative biosynthetic gene clusters ftm for fumitremorgins, pso for pseurotins, fga for fumigaclavines, and hel for helvolinic acid. These putative biosynthetic gene clusters fundamentally underpinned the enzymatic and mechanistic function study for the biosynthesis of these compounds. The current study reported two new compounds and biosynthetic gene clusters of fumitremorgins, pseurotins, fumigaclavines and helvolinic acid from Aspergillus fumigatus MF071.
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37
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Cytotoxic Hydroperoxycochliodinol Derivative from Endophytic Chaetomium sp. Isolated from Salvia officinalis. Chem Nat Compd 2020. [DOI: 10.1007/s10600-020-03123-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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38
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Hu FP, Cui XF, Lu GQ, Huang GS. Base-promoted Lewis acid catalyzed synthesis of quinazoline derivatives. Org Biomol Chem 2020; 18:4376-4380. [PMID: 32458847 DOI: 10.1039/d0ob00225a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
A one-pot protocol has been developed for the synthesis of quinazolinones from amide-oxazolines with TsCl via a cyclic 1,3-azaoxonium intermediate and 6π electron cyclization in the presence of a Lewis acid and base. The process is operationally simple and has a broad substrate scope. This method provides a unique strategy for the construction of quinazolinones.
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Affiliation(s)
- Fang-Peng Hu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Xin-Feng Cui
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Guo-Qiang Lu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
| | - Guo-Sheng Huang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
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39
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Duan S, An Y, Xue B, Chen Y, Zhang W, Xu Z, Li C. Synthesis of Pyrido[2,3‐
b
]indole Derivatives via Rhodium‐Catalyzed Cyclization of Indoles and 1‐Sulfonyl‐1,2,3‐triazoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901599] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shengguo Duan
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Yuehui An
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Bing Xue
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Yidian Chen
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Wan Zhang
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Ze‐Feng Xu
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
| | - Chuan‐Ying Li
- Department of ChemistryZhejiang Sci-Tech University, Xiasha West Higher Education District Hangzhou 310018 People's Republic of China
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40
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Qi YX, Mou XF, Haider W, Said G, Shao CL, Wei MY. Two Chaetominine-Type Alkaloids from the Coral-Derived Scopulariopsis sp. Fungus. Chem Nat Compd 2020. [DOI: 10.1007/s10600-020-03040-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Wu JF, Huang PQ. Concise, enantioselective total syntheses of both the proposed and revised structures of (−)-versiquinazoline H. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.06.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Pan S, Jiang M, Zhong G, Dai L, Zhou Y, Wei K, Zeng X. Visible-light-induced selectivity controllable synthesis of diamine or imidazoline derivatives by multicomponent decarboxylative radical coupling reactions. Org Chem Front 2020. [DOI: 10.1039/d0qo01028f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A visible-light-induced and photoredox-catalyzed three-component selectivity controllable synthesis of vicinal diamines and imidazoles from readily available starting materials under mild reaction conditions has been realized.
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Affiliation(s)
- Shulei Pan
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Min Jiang
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Guofu Zhong
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Linlong Dai
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Yu Zhou
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Kaihang Wei
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
| | - Xiaofei Zeng
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- China
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43
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Dar PM, Abdel-Azeem AM, Hamed SR. Chaetomium’s Alkaloids. Fungal Biol 2020. [DOI: 10.1007/978-3-030-31612-9_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Hamed SR, Abdel-Azeem AM, Dar PM. Recent Advancements on the Role of Biologically Active Secondary Metabolites from Chaetomium. Fungal Biol 2020. [DOI: 10.1007/978-3-030-31612-9_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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45
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Shah TA, De PB, Pradhan S, Banerjee S, Punniyamurthy T. Cp*Co(III)-Catalyzed Regioselective C2 Amidation of Indoles Using Acyl Azides. J Org Chem 2019; 84:16278-16285. [PMID: 31771331 DOI: 10.1021/acs.joc.9b02244] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A cobalt-catalyzed C2-selective amidation of indoles using acyl azides has been accomplished. Isotope experiments suggest that C-H activation is reversible. The use of sustainable Co catalysis, functional group diversity, substrate scope, and regioselectivity are the important practical features.
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Affiliation(s)
- Tariq A Shah
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Pinaki Bhusan De
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Sourav Pradhan
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Sonbidya Banerjee
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
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46
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Kartsev V, Geronikaki A, Petrou A, Lichitsky B, Kostic M, Smiljkovic M, Soković M, Sirakanyan S. Griseofulvin Derivatives: Synthesis, Molecular Docking and Biological Evaluation. Curr Top Med Chem 2019; 19:1145-1161. [DOI: 10.2174/1568026619666190523080136] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 02/20/2019] [Accepted: 03/23/2019] [Indexed: 11/22/2022]
Abstract
Background:Griseofulvin - a mold metabolite produced by Penisilium griseofulvum is known as an antifungal drug.Objective:Thus, the goal of this paper is the design and synthesis of new griseofulvin derivatives and evaluation of their antifungal activity.Methods:Forty-two new compounds were synthesized using classical methods of organic synthesis and evaluated for their antimicrobial activity by microdilution method.Results:All forty-two new compounds exhibited very good activity against eight tested micromycetes with MIC ranging from 0.0075-0.055 mg/ml and MFC from 0.02-024 mg/ml. All compounds exhibited better activity than reference drugs ketoconazole (7-42 times) and bifonazole (3-16 fold). The most promising was compound 15. The most sensitive fungal was found to be T. viride, while the most resistant, as was expected, was A. fumigatus. It should be mentioned that most of compounds exhibited better activity than griseofulvin.:The molecular docking studies revealed that the most active compound have the same hydrophobic and H-bonding interactions with Thr276 residue observed for griseofulvin forming 3 hydrogen bonds while griseofulvin only one. In general, the molecular docking results coincide with experimental.Conclusion:Forty-two giseofulvin derivatives were designed, synthesized and evaluated for antimicrobial activity. These derivatives revealed good antifungal activity, better than reference drugs ketoconazole, bifonazole, and griseofulvin as well.
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Affiliation(s)
| | - Athina Geronikaki
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anthi Petrou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Boris Lichitsky
- Zelinsky Institute of Organic Chemistry, Leninsky prospect, 119991, Moscow, Russian Federation
| | - Marina Kostic
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Sinisa Stankovic, University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Marija Smiljkovic
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Sinisa Stankovic, University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Marina Soković
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Sinisa Stankovic, University of Belgrade, Bulevar Despota Stefana 142, 11000, Belgrade, Serbia
| | - Samvel Sirakanyan
- Scientific Technological Center of Organic and Pharmaceutical Chemistry of National Academy of Science of Republic of Armenia, Institute of Fine Organic Chemistry of A.L. Mnjoyan, Armenia 0014, Yerevan, Ave. Azatutyan 26, Armenia
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47
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Xu MM, Cao WB, Ding R, Li HY, Xu XP, Ji SJ. Dearomatization of Indoles via Azido Radical Addition and Dioxygen Trapping To Access 2-Azidoindolin-3-ols. Org Lett 2019; 21:6217-6220. [DOI: 10.1021/acs.orglett.9b02009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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48
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Tu L, Li Z, Feng T, Yu S, Huang R, Li J, Wang W, Zheng Y, Liu J. Access to Imidazolidines via 1,3-Dipolar Cycloadditions of 1,3,5-Triazinanes with Aziridines. J Org Chem 2019; 84:11161-11169. [DOI: 10.1021/acs.joc.9b01959] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Liang Tu
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Zhenghui Li
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Tao Feng
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Shuyan Yu
- College of Pharmacy, Inner Mongolia Medical University, Hohhot 010010, China
| | - Rong Huang
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Jing Li
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Wenxuan Wang
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Yongsheng Zheng
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
| | - Jikai Liu
- School of Pharmaceutical Sciences, National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China
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49
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Zhou J, Zhang H, Chen XL, Qu YL, Zhu Q, Feng CG, Chen YJ. Regio- and Diastereoselective Access to 4-Imidazolidinones via an Aza-Mannich Initiated Cyclization of Sulfamate-Derived Cyclic Imines with α-Halo Hydroxamates. J Org Chem 2019; 84:9179-9187. [DOI: 10.1021/acs.joc.9b01128] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing Zhou
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, PR China
| | - Hong Zhang
- Mineral Processing and Biometallurgy Institute, Rock and Mineral Testing Center of Henan Province, 28 Jinshui Road, Zhengzhou, Henan 450012, PR China
| | - Xue-Lian Chen
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, PR China
| | - Ya-Li Qu
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, PR China
| | - Qianqian Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, PR China
| | - Chen-Guo Feng
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China
| | - Ya-Jing Chen
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, PR China
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50
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Liu ZJ, Huang PQ. Biomimetic Enantioselective Total Synthesis of (-)-Robustanoids A and B and Analogues. J Org Chem 2019; 84:5627-5634. [PMID: 30957497 DOI: 10.1021/acs.joc.9b00573] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a step-economical, enantioselective total synthesis of (-)-robustanoid B and (-)-robustanoid A and four novel natural product-like compounds. Our strategy relied on our biosynthetic hypothesis and on a novel complexity generation methodology, namely, the one-pot hydroxylative double cyclization reaction. The latter consists of a modified 3,3-dimethyldioxirane-triggered epoxidation-epoxide-ring-opening cyclization reaction cascade and Trost's regioselectivity umpolung methodology ("anti-Michael addition").
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Affiliation(s)
- Zhan-Jiang Liu
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361005 , P. R. China
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