1
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Wang H, Zhang R, Ma B, Wang W, Yu C, Han J, Zhu L, Zhang X, Dai H, Liu H, Chen B. Japonamides A and B, Two New Cyclohexadepsipeptides from the Marine-Sponge-Derived Fungus Aspergillus japonicus and Their Synergistic Antifungal Activities. J Fungi (Basel) 2022; 8:jof8101058. [PMID: 36294623 PMCID: PMC9605600 DOI: 10.3390/jof8101058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 11/09/2022] Open
Abstract
Two new cyclohexadepsipeptides japonamides A (1) and B (2) were isolated from the ethyl acetate extract of a marine-sponge-derived fungus Aspergillus japonicus based on molecular networking. Their structures were elucidated by comprehensive spectral analysis and their absolute configurations were confirmed by Marfey's method. Compounds 1 and 2 showed no antifungal activities against Candida albicans SC5314 measured by the broth microdilution method but exhibited prominent synergistic antifungal activities in combination with fluconazole, ketoconazole, or rapamycin. The Minimum inhibitory concentrations (MICs) of rapamycin, fluconazole, and ketoconazole were significantly decreased from 0.5 to 0.002 μM, from 0.25 to 0.063 μM, and from 0.016 to 0.002 μM, in the presence of compounds 1 or 2 at 3.125 μM, 12.5 μM, and 6.25 μM, respectively. Surprisingly, the combination of compounds 1 or 2 with rapamycin showed a strong synergistic effect, with fractional inhibitory concentration index (FICI) values of 0.03.
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Affiliation(s)
- Haifeng Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Rui Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Ben Ma
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Wenzhao Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
| | - Chong Yu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Junjie Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
| | - Lingjuan Zhu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xue Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Huanqin Dai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongwei Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
- Correspondence: (H.L.); (B.C.)
| | - Baosong Chen
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
- Correspondence: (H.L.); (B.C.)
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2
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Pan Y, Ren W, Zhang Z, Luo F, Hou X, Li X, Yang YF, Wang Y. Tandem 1,6-addition/cyclopropanation/rearrangement reaction of vinylogous para-quinone methides with 3-chlorooxindoles: construction of vicinal quaternary carbon centers. Org Chem Front 2022. [DOI: 10.1039/d2qo00471b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel tandem 1,6-addition/cyclopropanation/rearrangement reaction of vinylogous para-quinone methides with 3-chlorooxindoles has been developed, providing dispirooxindole–cyclopentane–cyclohexadienones with vicinal quaternary carbon centers.
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Affiliation(s)
- Yuan Pan
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Weiwu Ren
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
| | - Zhanhao Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Fengbiao Luo
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaohan Hou
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaoyang Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yun-Fang Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
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3
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Tian HZ, Tang QG, Lin GQ, Sun XW. Asymmetric synthesis of chiral 1,2-oxazinane and hexahydropyridazin spirocyclic scaffolds by organocatalytic [4 + 2] cycloaddition. RSC Adv 2022; 12:15713-15717. [PMID: 35685709 PMCID: PMC9128346 DOI: 10.1039/d2ra02759c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
A novel approach to synthesize chiral 1,2-oxazinane spirocyclic scaffolds by organocatalytic [4 + 2] cycloaddition reaction between methyleneindolinones and γ-aminooxy-α,β-unsaturated ester has been disclosed. Furthermore, a hydrazide 1,4-synthon is designed and synthesized to construct chiral hexahydropyridazin spirocyclic scaffolds with methyleneindolinones via [4 + 2] cycloaddition reaction. Both reactions give corresponding products in good to excellent yield, excellent diastereoselectivity and good enantioselectivity. Chiral 1,2-oxazinane spiro-oxindole and chiral hexahydropyridazin spiro-oxindole skeletons are made through asymmetric organocatalytic reactions. Corresponding products were produced in good to excellent yield, excellent diastereoselectivity and good enantioselectivity.![]()
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Affiliation(s)
- Heng-Zhi Tian
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Qing-Gang Tang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Guo-Qiang Lin
- Department of Chemistry, Fudan University, Shanghai 200433, China
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xing-Wen Sun
- Department of Chemistry, Fudan University, Shanghai 200433, China
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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4
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Gao S, Tian WJ, Liao ZJ, Wang GH, Zeng DQ, Liu XZ, Wang XY, Zhou H, Chen HF, Lin T. Chemical Constituents from Endophytic Fungus Annulohypoxylon cf. stygium in Leaves of Anoectochilus roxburghii. Chem Biodivers 2020; 17:e2000424. [PMID: 32672903 DOI: 10.1002/cbdv.202000424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/15/2020] [Indexed: 11/09/2022]
Abstract
The chemical investigation on endophytic fungus Annulohypoxylon cf. stygium in leaves of Anoectochilus roxburghii (Wall.) Lindl. has been performed. Sixteen compounds were isolated and their structures were identified as (-)-notoamide A, (-)-notoamide B, (+)-versicolamide B, notoamide C, notoamide D, stephacidin A, sterigmatocystin, dihydrosterigmatocystin, secosterigmatocystin, versiconol, averufanin, kipukasin D, kipukasin E, diorcinal, palmarumycin CP2 and (-)-(3R)-mellein methyl ether, respectively, by spectroscopic analysis and comparison with literature data. All the compounds were isolated from Annulohypoxylon genus for the first time. Sterigmatocystin and palmarumycin CP2 showed selective cytotoxic activities against HepG2, HeLa, MCF-7 and HT-29.
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Affiliation(s)
- Shuo Gao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Wen-Jing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Zu-Jian Liao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Guang-Hui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - De-Quan Zeng
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiang-Zhong Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiao-Yao Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Hu Zhou
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Hai-Feng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Ting Lin
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
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5
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Dan Q, Newmister SA, Klas KR, Fraley AE, McAfoos TJ, Somoza AD, Sunderhaus JD, Ye Y, Shende VV, Yu F, Sanders JN, Brown WC, Zhao L, Paton RS, Houk KN, Smith JL, Sherman DH, Williams RM. Fungal indole alkaloid biogenesis through evolution of a bifunctional reductase/Diels-Alderase. Nat Chem 2019; 11:972-980. [PMID: 31548667 PMCID: PMC6815239 DOI: 10.1038/s41557-019-0326-6] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 08/05/2019] [Indexed: 12/25/2022]
Abstract
Prenylated indole alkaloids such as the calmodulin-inhibitory malbrancheamides and anthelmintic paraherquamides possess great structural diversity and pharmaceutical utility. Here, we report complete elucidation of the malbrancheamide biosynthetic pathway accomplished through complementary approaches. These include a biomimetic total synthesis to access the natural alkaloid and biosynthetic intermediates in racemic form and in vitro enzymatic reconstitution to provide access to the natural antipode (+)-malbrancheamide. Reductive cleavage of an L-Pro-L-Trp dipeptide from the MalG non-ribosomal peptide synthetase (NRPS) followed by reverse prenylation and a cascade of post-NRPS reactions culminates in an intramolecular [4+2] hetero-Diels-Alder (IMDA) cyclization to furnish the bicyclo[2.2.2]diazaoctane scaffold. Enzymatic assembly of optically pure (+)-premalbrancheamide involves an unexpected zwitterionic intermediate where MalC catalyses enantioselective cycloaddition as a bifunctional NADPH-dependent reductase/Diels-Alderase. The crystal structures of substrate and product complexes together with site-directed mutagenesis and molecular dynamics simulations demonstrate how MalC and PhqE (its homologue from the paraherquamide pathway) catalyse diastereo- and enantioselective cyclization in the construction of this important class of secondary metabolites.
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Affiliation(s)
- Qingyun Dan
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Sean A Newmister
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Kimberly R Klas
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Amy E Fraley
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Timothy J McAfoos
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Amber D Somoza
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - James D Sunderhaus
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Ying Ye
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Vikram V Shende
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
- Program in Chemical Biology, University of Michigan, Ann Arbor, MI, USA
| | - Fengan Yu
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - W Clay Brown
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Le Zhao
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Robert S Paton
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Janet L Smith
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI, USA.
- Department of Microbiology & Immunology, University of Michigan, Ann Arbor, MI, USA.
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA.
| | - Robert M Williams
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA.
- University of Colorado Cancer Center, Aurora, CO, USA.
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6
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Lin Y, Zhao BL, Du DM. Bifunctional Squaramide-Catalyzed Asymmetric [3 + 2] Cyclization of 2-(1-Methyl-2-oxoindolin-3-yl)malononitriles with Unsaturated Pyrazolones To Construct Spirooxindole-Fused Spiropyrazolones. J Org Chem 2019; 84:10209-10220. [DOI: 10.1021/acs.joc.9b01268] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ye Lin
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, People’s Republic of China
| | - Bo-Liang Zhao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, People’s Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, People’s Republic of China
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7
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Klas KR, Kato H, Frisvad JC, Yu F, Newmister SA, Fraley AE, Sherman DH, Tsukamoto S, Williams RM. Structural and stereochemical diversity in prenylated indole alkaloids containing the bicyclo[2.2.2]diazaoctane ring system from marine and terrestrial fungi. Nat Prod Rep 2019; 35:532-558. [PMID: 29632911 DOI: 10.1039/c7np00042a] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Covering: up to February 2017 Various fungi of the genera Aspergillus, Penicillium, and Malbranchea produce prenylated indole alkaloids possessing a bicyclo[2.2.2]diazaoctane ring system. After the discovery of distinct enantiomers of the natural alkaloids stephacidin A and notoamide B, from A. protuberus MF297-2 and A. amoenus NRRL 35660, another fungi, A. taichungensis, was found to produce their diastereomers, 6-epi-stephacidin A and versicolamide B, as major metabolites. Distinct enantiomers of stephacidin A and 6-epi-stephacidin A may be derived from a common precursor, notoamide S, by enzymes that form a bicyclo[2.2.2]diazaoctane core via a putative intramolecular hetero-Diels-Alder cycloaddition. This review provides our current understanding of the structural and stereochemical homologies and disparities of these alkaloids. Through the deployment of biomimetic syntheses, whole-genome sequencing, and biochemical studies, a unified biogenesis of both the dioxopiperazine and the monooxopiperazine families of prenylated indole alkaloids constituted of bicyclo[2.2.2]diazaoctane ring systems is presented.
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Affiliation(s)
- Kimberly R Klas
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, CO 80523, USA.
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8
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Dokli I, Pohl R, Klepetářová B, Jahn U. First total synthesis of ent-asperparaline C and assignment of the absolute configuration of asperparaline C. Chem Commun (Camb) 2019; 55:3931-3934. [DOI: 10.1039/c9cc00945k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first asymmetric total synthesis of a member of the asperparaline family was accomplished and the unknown absolute configuration of asperparaline C has been determined to be all-(S).
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Affiliation(s)
- Irena Dokli
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
| | - Ullrich Jahn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences
- 16610 Prague 6
- Czech Republic
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9
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Afiyatullov SS, Leshchenko EV, Antonov AS, Zhuravleva OI. Secondary Metabolites of Fungus Penicillium thomii Associated with Eelgrass Zostera marina. Chem Nat Compd 2018. [DOI: 10.1007/s10600-018-2545-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Wang CC, Huang J, Li XH, Kramer S, Lin GQ, Sun XW. Asymmetric Organocatalytic [4 + 1] Annulations: Enantioselective Construction of Multifunctionalized Spirocyclopentane Oxindoles Bearing α,α-Disubstituted α-Amino-β-keto Esters. Org Lett 2018; 20:2888-2891. [DOI: 10.1021/acs.orglett.8b00927] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Chuan-Chuan Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Jian Huang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xin-Hao Li
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Guo-Qiang Lin
- Department of Chemistry, Fudan University, Shanghai 200433, China
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xing-Wen Sun
- Department of Chemistry, Fudan University, Shanghai 200433, China
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11
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Kokubun T, Scott-Brown A, Kite GC, Simmonds MSJ. Protoilludane, Illudane, Illudalane, and Norilludane Sesquiterpenoids from Granulobasidium vellereum. JOURNAL OF NATURAL PRODUCTS 2016; 79:1698-1701. [PMID: 27227966 DOI: 10.1021/acs.jnatprod.6b00325] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two new and seven known sesquiterpene compounds were isolated from an agar plate culture of Granulobasidium vellereum, isolated from a log of Ulmus sp. The two new structures were elucidated with spectroscopic methods as an illudalane derivative, granulolactone (1), and a 15-norilludane, granulodione (9). The acaricidal and insecticidal activities of the isolated compounds were examined in vitro against two major horticultural pests, the two-spotted spider mite Tetranychus urticae and the glasshouse thrips Heliothrips haemorrhoidalis, respectively.
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Affiliation(s)
- Tetsuo Kokubun
- Royal Botanic Gardens, Kew , Richmond, Surrey TW9 3AB, U.K
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12
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Nishikori S, Takemoto K, Kamisuki S, Nakajima S, Kuramochi K, Tsukuda S, Iwamoto M, Katayama Y, Suzuki T, Kobayashi S, Watashi K, Sugawara F. Anti-hepatitis C Virus Natural Product from a Fungus, Penicillium herquei. JOURNAL OF NATURAL PRODUCTS 2016; 79:442-446. [PMID: 26848504 DOI: 10.1021/acs.jnatprod.5b00555] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
New diazabicyclo[2.2.2]octane derivatives, peniciherquamides A-C (1-3), and a novel herqueinone derivative, neoherqueinone (5), were isolated from a fungal culture broth of Penicillium herquei. The structures of these novel compounds were determined by interpretation of spectroscopic data (1D/2D NMR, MS, and IR). Four known compounds, preparaherquamide (4), peniciherqueinone (6), and herqueinone/isoherqueinone (7/7a), were also obtained. The isolated compounds were tested for anti-hepatitis C virus (HCV) activity, and peniciherquamide C (3) was found to display an IC50 value of 5.1 μM. To our knowledge, this is the first report of a diazabicyclo[2.2.2]octane derivative with anti-HCV activity.
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Affiliation(s)
| | | | | | - Syo Nakajima
- Department of Virology II, National Institute of Infectious Diseases , Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kouji Kuramochi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University , Sakyo-ku, Kyoto 606-8522, Japan
| | - Senko Tsukuda
- Department of Virology II, National Institute of Infectious Diseases , Shinjuku-ku, Tokyo 162-8640, Japan
| | - Masashi Iwamoto
- Department of Virology II, National Institute of Infectious Diseases , Shinjuku-ku, Tokyo 162-8640, Japan
| | | | | | | | - Koichi Watashi
- Department of Virology II, National Institute of Infectious Diseases , Shinjuku-ku, Tokyo 162-8640, Japan
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13
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Yu Z, Qiu H, Liu L, Zhang J. Gold-catalyzed construction of two adjacent quaternary stereocenters via sequential C–H functionalization and aldol annulation. Chem Commun (Camb) 2016; 52:2257-60. [DOI: 10.1039/c5cc08880a] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel gold-catalyzed intermolecular C–H functionalization and aldol cyclization for the construction of two adjacent quaternary centers is presented.
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Affiliation(s)
- Zhunzhun Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Haile Qiu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Lu Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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14
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Xue J, Bao Y, Qin W, Zhu J, Kong Y, Qu H, Chen Z, Liu L. Metal-Free–Catalyzed Oxidative Trimerization of Indoles Using NaNO2 to Construct Quaternary Carbon Centers: Synthesis of 2-(1H-Indol-3-yl)-2,3′-biindolin-3-ones. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.891743] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jun Xue
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Yunhong Bao
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Wenbing Qin
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Jiayi Zhu
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Yubo Kong
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Hongen Qu
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Zhengwang Chen
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
| | - Liangxian Liu
- a Department of Chemistry and Chemical Engineering , Gannan Normal University , Ganzhou , Jiangxi , China
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15
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16
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Kong YB, Zhu JY, Chen ZW, Liu LX. Copper-catalyzed oxidative trimerization of indoles by using TEMPO to construct quaternary carbon centers: the synthesis of 2-(1H-indol-3-yl)-2,3′-biindolin-3-ones. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0435] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A simple, convenient, and efficient synthesis of 2-(1H-indol-3-yl)-2,3′-biindolin-3-one derivatives has been developed by the oxidative trimeric reaction of indoles using the TEMPO/CuCl2 catalyst system under ambient air. This methodology provides an alternative approach for the direct generation of all-carbon quaternary centers at the C-2 position of indoles.
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Affiliation(s)
- Yu-Bo Kong
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, P R. China
| | - Jia-Yi Zhu
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, P R. China
| | - Zheng-Wang Chen
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, P R. China
| | - Liang-Xian Liu
- Department of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, P R. China
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Li S, Anand K, Tran H, Yu F, Finefield JM, Sunderhaus JD, McAfoos TJ, Tsukamoto S, Williams RM, Sherman DH. Comparative analysis of the biosynthetic systems for fungal bicyclo[2.2.2]diazaoctane indole alkaloids: the (+)/(-)-notoamide, paraherquamide and malbrancheamide pathways. MEDCHEMCOMM 2012; 3:987-996. [PMID: 23213353 PMCID: PMC3511817 DOI: 10.1039/c2md20029e] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The biosynthesis of fungal bicyclo[2.2.2]diazaoctane indole alkaloids with a wide spectrum of biological activities have attracted increasing interest. Their intriguing mode of assembly has long been proposed to feature a non-ribosomal peptide synthetase, a presumed intramolecular Diels-Alderase, a variant number of prenyltransferases, and a series of oxidases responsible for the diverse tailoring modifications of their cyclodipeptide-based structural core. Until recently, the details of these biosynthetic pathways have remained largely unknown due to lack of information on the fungal derived biosynthetic gene clusters. Herein, we report a comparative analysis of four natural product metabolic systems of a select group of bicyclo[2.2.2]diazaoctane indole alkaloids including (+)/(-)-notoamide, paraherquamide and malbrancheamide, in which we propose an enzyme for each step in the biosynthetic pathway based on deep annotation and on-going biochemical studies.
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Affiliation(s)
- Shengying Li
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Krithika Anand
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Hong Tran
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Fengan Yu
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | | | - James D. Sunderhaus
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523
| | - Timothy J. McAfoos
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Robert M. Williams
- University of Colorado Cancer Center, Aurora, Colorado 80045, USA
- Departments of Medicinal Chemistry, Microbiology & Immunology, and Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - David H. Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
- Departments of Medicinal Chemistry, Microbiology & Immunology, and Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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18
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Finefield JM, Frisvad JC, Sherman DH, Williams RM. Fungal origins of the bicyclo[2.2.2]diazaoctane ring system of prenylated indole alkaloids. JOURNAL OF NATURAL PRODUCTS 2012; 75:812-33. [PMID: 22502590 PMCID: PMC3485739 DOI: 10.1021/np200954v] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Over eight different families of natural products consisting of nearly 70 secondary metabolites that contain the bicyclo[2.2.2]diazaoctane ring system have been isolated from various Aspergillus, Penicillium, and Malbranchea species. Since 1968, these secondary metabolites have been the focus of numerous biogenetic, synthetic, taxonomic, and biological studies and, as such, have made a lasting impact across multiple scientific disciplines. This review covers the isolation, biosynthesis, and biological activity of these unique secondary metabolites containing the bridging bicyclo[2.2.2]diazaoctane ring system. Furthermore, the diverse fungal origin of these natural products is closely examined and, in many cases, updated to reflect the currently accepted fungal taxonomy.
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Affiliation(s)
- Jennifer M Finefield
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
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19
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Harrison DP, Iovan DA, Myers WH, Sabat M, Wang S, Zottig VE, Harman WD. [4 + 2] Cyclocondensation reactions of tungsten-dihydropyridine complexes and the generation of tri- and tetrasubstituted piperidines. J Am Chem Soc 2011; 133:18378-87. [PMID: 21961580 DOI: 10.1021/ja2075086] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new method for the preparation of functionalized piperidines is described in which various dihydropyridine (DHP) complexes of {TpW(NO)(PMe(3))} that are derived from pyridine-borane undergo [4 + 2] cyclocondensation with enones, enals, nitrosobenzene, and several isocyanates to form [2.2.2] bicyclic species. In several cases the diazabicyclooctene products derived from DHP complexes and isocyanates can be further elaborated into novel syn-2,5-disubstituted and 2,3,6-trisubstituted piperidinamides.
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Affiliation(s)
- Daniel P Harrison
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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Frebault FC, Simpkins NS. A cationic cyclisation route to prenylated indole alkaloids: synthesis of malbrancheamide B and brevianamide B, and progress towards stephacidin A. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.093] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Ishikura M, Yamada K, Abe T. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2010; 27:1630-80. [DOI: 10.1039/c005345g] [Citation(s) in RCA: 210] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Frebault F, Simpkins NS, Fenwick A. Concise enantioselective synthesis of ent-malbrancheamide B. J Am Chem Soc 2009; 131:4214-5. [PMID: 19317498 DOI: 10.1021/ja900688y] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise enantioselective synthesis of the fungal metabolite ent-malbrancheamide B was accomplished through the union of a C-prenylated proline derivative and a substituted indole pyruvic acid SEM enol ether, followed by a cationic double cyclization as the key step.
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Affiliation(s)
- Frederic Frebault
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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