1
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Hu Z, Cui H, Wang Q, Li C, Chen S, Gao Z, Liu L, Peng B, Li J. Induced production of defensive secondary metabolites from Aspergillus fumigatiaffinis by co-culture with Aspergillus alabamensis. PHYTOCHEMISTRY 2024; 225:114187. [PMID: 38889845 DOI: 10.1016/j.phytochem.2024.114187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 06/05/2024] [Accepted: 06/11/2024] [Indexed: 06/20/2024]
Abstract
Seven previously undescribed compounds, including four diketomorpholine alkaloids (1‒4), one indole diketopiperazine alkaloid (9), one chromone (10), and one benzoic acid derivative (13), and nine known compounds (5-8, 11, 12, and 14-16) were isolated from two different fungal sources. Nine of these metabolites (1-9) were obtained from a seagrass-derived Aspergillus alabamensis SYSU-6778, while the others were obtained from a mixed culture of A. alabamensis SYSU-6778 and a co-isolated fungus A. fumigatiaffinis SYSU-6786. The chemical structures of the compounds were deduced via spectroscopic techniques (including HRESIMS, 1D and 2D NMR), chemical reactions, and ECD calculations. It is worth noting that compound 10 was identified as a defensive secondary metabolite of strain SYSU-6786, produced through the induction of compound 8 under co-culture conditions. Compounds 3 and 4 possessed a naturally rare isotryptophan core. Moreover, compounds 1 and 2 exhibited potent inhibitory activities against fish pathogenic bacterium Edwardsiella ictalurid, with minimum inhibitory concentration values of 10.0 μg/mL for both compounds.
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Affiliation(s)
- Zhibo Hu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Haishan Cui
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Qiang Wang
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Cheng Li
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Senhua Chen
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Zhizeng Gao
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China
| | - Lan Liu
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, PR China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, PR China
| | - Bo Peng
- Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, PR China
| | - Jing Li
- School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai, 519082, PR China.
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2
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Vermeyen T, Cunha A, Bultinck P, Herrebout W. Impact of conformation and intramolecular interactions on vibrational circular dichroism spectra identified with machine learning. Commun Chem 2023; 6:148. [PMID: 37438485 DOI: 10.1038/s42004-023-00944-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 06/29/2023] [Indexed: 07/14/2023] Open
Abstract
Vibrational Circular Dichroism (VCD) spectra often differ strongly from one conformer to another, even within the same absolute configuration of a molecule. Simulated molecular VCD spectra typically require expensive quantum chemical calculations for all conformers to generate a Boltzmann averaged total spectrum. This paper reports whether machine learning (ML) can partly replace these quantum chemical calculations by capturing the intricate connection between a conformer geometry and its VCD spectrum. Three hypotheses concerning the added value of ML are tested. First, it is shown that for a single stereoisomer, ML can predict the VCD spectrum of a conformer from solely the conformer geometry. Second, it is found that the ML approach results in important time savings. Third, the ML model produced is unfortunately hardly transferable from one stereoisomer to another.
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Affiliation(s)
- Tom Vermeyen
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, Antwerpen, 2020, Belgium.
- Department of Chemistry, Ghent University, Krijgslaan 281, Gent, 9000, Belgium.
| | - Ana Cunha
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, Antwerpen, 2020, Belgium
| | - Patrick Bultinck
- Department of Chemistry, Ghent University, Krijgslaan 281, Gent, 9000, Belgium.
| | - Wouter Herrebout
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, Antwerpen, 2020, Belgium
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3
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Qi X, Chen WH, Lin XP, Liao SR, Yang B, Zhou XF, Liu YH, Wang JF, Li Y. A glyoxylate-containing benzene derivative and butenolides from a marine algicolous fungus Aspergillus sp. SCSIO 41304. Nat Prod Res 2023; 37:441-448. [PMID: 34542359 DOI: 10.1080/14786419.2021.1978994] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new glyoxylate-containing benzene derivative, methyl 2-(4-hydroxy-3-(3'-methyl-2'-butenyl)phenyl)-2-oxoacetate (1), together with ten known compounds (2-11), were isolated from the marine algicolous fungus, Aspergillus sp. SCSIO 41304. Their planar structures and absolute configurations were elucidated by detailed NMR, MS spectroscopic analysis and comparing with literature data. Compound 1 was isolated as a new fungal secondary metabolite, possessing a methyl glyoxylate moiety R-CO-CO-OCH3, which is rare in natural sources. All the isolated compounds (1-11) were tested for their antibacterial and enzyme inhibitory activities against acetylcholinesterase (AChE) and pancreatic lipase (PL). Among these compounds, aspulvinone H (4) showed moderate inhibition against AChE and PL with IC50 values of 25.95 and 47.06 μM, respectively. Further molecular docking simulation exhibited that compound 4 could well bind to the catalytic pockets of the AChE and PL.
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Affiliation(s)
- Xin Qi
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China.,CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Wei-Hao Chen
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China
| | - Xiu-Ping Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Sheng-Rong Liao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Xue-Feng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Yong-Hong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Jun-Feng Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, South China Sea Institute of Oceanology Chinese Academy of Sciences, Guangzhou, China.,Sanya Institute of Oceanology, SCSIO, Yazhou Scientific Bay, Sanya, China
| | - Yong Li
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun, China
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4
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Wei J, Chen X, Ge Y, Yin Q, Ma Y, Zhang Z, Wu X, Hong K, Wu B. Cytotoxic shornephines and asterresins from the hydrothermal vent associated fungus Aspergillus terreus CXX-158-20. PHYTOCHEMISTRY 2023; 205:113479. [PMID: 36270410 DOI: 10.1016/j.phytochem.2022.113479] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
A previously unreported alkaloid, bearing an undescribed 5/7/8 tricyclic heterocyclic skeleton, shornephine D, an undescribed diketomorpholine (DKM) shornephine B, two undescribed diketomorpholine derivatives shornephine C and seco-shornephine B methyl ester, an undescribed indole-isoquinoline alkaloid asterresin C, three undescribed indole alkaloids asterresins A-B and D, together with five known compounds, were isolated from the culture of hydrothermal vent associated fungus Aspergillus terreus CXX-158-20. Their structures were unambiguously determined by nuclear magnetic resonance (NMR), mass spectrometry, Mosher's method, 13C NMR calculation in combination with DP4+, and ECD calculations. Shornephine D and asterresin C represent two undescribed heterocyclic skeletons. Asterresin D and giluterrin exhibited cytotoxicity activities with IC50 values of 3.96 μM and 7.97 μM against A549 cell line. Asterresin D exhibited cytotoxicity activities with IC50 values of 12.36 μM and 12.48 μM against Namalwa and U266 cell lines. Asterresin A and giluterrin exhibited synergistic effect with adriamycin against MCF-7 cell line.
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Affiliation(s)
- Jihua Wei
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Xuexia Chen
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Yichao Ge
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Qizhao Yin
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Yihan Ma
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Zunjing Zhang
- Ocean College, Zhejiang University, Zhoushan, 316021, China
| | - Xiaodan Wu
- Center of Analysis, Zhejiang University, Hangzhou, 310058, China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, China
| | - Bin Wu
- Ocean College, Zhejiang University, Zhoushan, 316021, China.
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5
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Fajardo-Hernández C, Khan FST, Flores-Bocanegra L, Prieto-Davó A, Wan B, Ma R, Qader M, Villanueva-Silva R, Martínez-Cárdenas A, López-Lobato MA, Hematian S, Franzblau SG, Raja HA, García-Contreras R, Figueroa M. Insights into the Chemical Diversity of Selected Fungi from the Tza Itzá Cenote of the Yucatan Peninsula. ACS OMEGA 2022; 7:12171-12185. [PMID: 35449929 PMCID: PMC9016812 DOI: 10.1021/acsomega.2c00544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Cenotes are habitats with unique physical, chemical, and biological features. Unexplored microorganisms from these sinkholes represent a potential source of bioactive molecules. Thus, a series of cultivable fungi (Aspergillus spp. NCA257, NCA264, and NCA276, Stachybotrys sp. NCA252, and Cladosporium sp. NCA273) isolated from the cenote Tza Itzá were subjected to chemical, coculture, and metabolomic analyses. Nineteen compounds were obtained and tested for their antimicrobial potential against ESKAPE pathogens, Mycobacterium tuberculosis, and nontuberculous mycobacteria. In particular, phenylspirodrimanes from Stachybotrys sp. NCA252 showed significant activity against MRSA, MSSA, and mycobacterial strains. On the other hand, the absolute configuration of the new compound 17-deoxy-aspergillin PZ (1) isolated from Aspergillus sp. NCA276 was established via single-crystal X-ray crystallography. Also, the chemical analysis of the cocultures between Aspergillus and Cladosporium strains revealed the production of metabolites that were not present or were barely detected in the monocultures. Finally, molecular networking analysis of the LC-MS-MS/MS data for each fungus was used as a tool for the annotation of additional compounds, increasing the chemical knowledge on the corresponding fungal strains. Overall, this is the first systematic chemical study on fungi isolated from a sinkhole in Mexico.
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Affiliation(s)
- Carlos
A. Fajardo-Hernández
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Firoz Shah Tuglak Khan
- Department
of Chemistry and Biochemistry, University
of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Laura Flores-Bocanegra
- Department
of Chemistry and Biochemistry, University
of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Alejandra Prieto-Davó
- Unidad
de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Sisal, Yucatán 97356, Mexico
| | - Baojie Wan
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Rui Ma
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Mallique Qader
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Rodrigo Villanueva-Silva
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Anahí Martínez-Cárdenas
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Marian A. López-Lobato
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Shabnam Hematian
- Department
of Chemistry and Biochemistry, University
of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Scott G. Franzblau
- Institute
for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Huzefa A. Raja
- Department
of Chemistry and Biochemistry, University
of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Rodolfo García-Contreras
- Departamento
de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Mario Figueroa
- Departamento
de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
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6
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Vu LP, Gütschow M. Diketomorpholines: Synthetic Accessibility and Utilization. ACS OMEGA 2022; 7:48-54. [PMID: 35036677 PMCID: PMC8756451 DOI: 10.1021/acsomega.1c05964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Diketomorpholines (DKMs; morpholine-2,5-diones) possess a six-membered ring with a lactone and lactam moiety and belong to the family of cyclodepsipeptides. In this review, the synthetic accessibility of DKMs is summarized and their utilization, in particular, for ring-opening polymerization reactions, is highlighted. The occurrence of the DKM scaffold in natural products encompasses small monocyclic compounds but also complex, polycyclic representatives with a fused DKM ring.
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7
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Chemical Diversity and Antimicrobial Potential of Cultivable Fungi from Deep-Sea Sediments of the Gulf of Mexico. Molecules 2021; 26:molecules26237328. [PMID: 34885908 PMCID: PMC8659086 DOI: 10.3390/molecules26237328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 11/17/2022] Open
Abstract
A collection of 29 cultivable fungal strains isolated from deep-sea sediments of the Gulf of Mexico were cultivated under the “one strain, many compounds” approach to explore their chemical diversity and antimicrobial potential. From the 87 extracts tested, over 50% showed antimicrobial activity, and the most active ones were those from cultures grown at 4 °C in darkness for 60 days (resembling deep-sea temperature). PCA analysis of the LC-MS data of all the extracts confirmed that culture temperature is the primary factor in the variation of the 4462 metabolite features, accounting for 21.3% of the variation. The bioactivity-guided and conventional chemical studies of selected fungal strains allowed the identification of several active and specialized metabolites. Finally, metabolomics analysis by GNPS molecular networking and manual dereplication revealed the biosynthetic potential of these species to produce interesting chemistry. This work uncovers the chemical and biological study of marine-derived fungal strains from deep-sea sediments of the Gulf of Mexico.
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8
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Jiang CX, Yu B, Miao YM, Ren H, Xu Q, Zhao C, Tian LL, Yu ZQ, Zhou PP, Wang X, Fang J, Zhang J, Zhang JZ, Wu QX. Indole Alkaloids from a Soil-Derived Clonostachys rosea. JOURNAL OF NATURAL PRODUCTS 2021; 84:2468-2474. [PMID: 34427432 DOI: 10.1021/acs.jnatprod.1c00457] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Clonorosins A (1) and B (2), two novel indole alkaloids featuring unprecedented 6/5/6/6/5 and 6/5/5 cores, together with seven known indole-linked 2,5-diketopiperazine alkaloids (3-9), were isolated from the soil-derived fungus Clonostachys rosea YRS-06. The new structures were proposed through HR-MS, NMR, and ECD spectroscopic data. They were established by comparing the calculated NMR, ECD, and specific rotation data with the experimental. To assist in determining the absolute configuration of the chiral carbon in the side chain of 2,5-diketopiperazine derivatives, flexible analogues 3i-3iv were synthesized and analyzed. 1 was active against Fusarium oxysporum with an MIC value of 50 μg/mL. 7 and 8 showed excellent activity against human HeLa and HepG2 cells with IC50 values of 0.12-0.60 μM.
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Affiliation(s)
- Chun-Xiao Jiang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
- School of Advanced Study, Taizhou University, Taizhou 318000, People's Republic of China
| | - Bo Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ya-Mei Miao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Hao Ren
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Qianhe Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Chun Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Li-Li Tian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Zhen-Qing Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Pan-Pan Zhou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Jiwen Zhang
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Jin Z Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Quan-Xiang Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
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9
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Martínez-Cárdenas A, Cruz-Zamora Y, Fajardo-Hernández CA, Villanueva-Silva R, Cruz-García F, Raja HA, Figueroa M. Genome Mining and Molecular Networking-Based Metabolomics of the Marine Facultative Aspergillus sp. MEXU 27854. Molecules 2021; 26:molecules26175362. [PMID: 34500798 PMCID: PMC8433890 DOI: 10.3390/molecules26175362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
The marine-facultative Aspergillus sp. MEXU 27854, isolated from the Caleta Bay in Acapulco, Guerrero, Mexico, has provided an interesting diversity of secondary metabolites, including a series of rare dioxomorpholines, peptides, and butyrolactones. Here, we report on the genomic data, which consists of 11 contigs (N50~3.95 Mb) with a ~30.75 Mb total length of assembly. Genome annotation resulted in the prediction of 10,822 putative genes. Functional annotation was accomplished by BLAST searching protein sequences with different public databases. Of the predicted genes, 75% were assigned gene ontology terms. From the 67 BGCs identified, ~60% belong to the NRPS and NRPS-like classes. Putative BGCs for the dioxomorpholines and other metabolites were predicted by extensive genome mining. In addition, metabolomic molecular networking analysis allowed the annotation of all isolated compounds and revealed the biosynthetic potential of this fungus. This work represents the first report of whole-genome sequencing and annotation from a marine-facultative fungal strain isolated from Mexico.
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Affiliation(s)
- Anahí Martínez-Cárdenas
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
| | - Yuridia Cruz-Zamora
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
| | - Carlos A. Fajardo-Hernández
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
| | - Rodrigo Villanueva-Silva
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
| | - Felipe Cruz-García
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
| | - Huzefa A. Raja
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, USA;
| | - Mario Figueroa
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico; (A.M.-C.); (Y.C.-Z.); (C.A.F.-H.); (R.V.-S.); (F.C.-G.)
- Correspondence: ; Tel.: +52-55-5622-5290
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10
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Al Subeh ZY, Raja HA, Burdette JE, Falkinham JO, Hemby SE, Oberlies NH. Three diketomorpholines from a Penicillium sp. (strain G1071). PHYTOCHEMISTRY 2021; 189:112830. [PMID: 34157637 PMCID: PMC8292221 DOI: 10.1016/j.phytochem.2021.112830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 06/13/2023]
Abstract
Three previously undescribed diketomorpholine natural products, along with the known phenalenones, herqueinone and norherqueinone, were isolated from the mycoparasitic fungal strain G1071, which was identified as a Penicillium sp. in the section Sclerotiora. The structures were established by analyzing NMR data and mass spectrometry fragmentation patterns. The absolute configurations of deacetyl-javanicunine A, javanicunine C, and javanicunine D, were assigned by examining ECD spectra and Marfey's analysis. The structural diversity generated by this fungal strain was interesting, as only a few diketomorpholines (~17) have been reported from nature.
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Affiliation(s)
- Zeinab Y Al Subeh
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, United States
| | - Huzefa A Raja
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, United States
| | - Joanna E Burdette
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Joseph O Falkinham
- Department of Biological Sciences, Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA, United States
| | - Scott E Hemby
- Department of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC, United States
| | - Nicholas H Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC, United States.
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11
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Wang C, Zaman KHAU, Sarotti AM, Wu X, Zheng SL, Cao S. NF-κB inhibitory, antimicrobial and antiproliferative potentials of compounds from Hawaiian fungus Aspergillus polyporicola FS910. 3 Biotech 2021; 11:391. [PMID: 34458061 DOI: 10.1007/s13205-021-02877-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 06/02/2021] [Indexed: 11/27/2022] Open
Abstract
Bioassay-guided experimental design and chromatographic analysis led to the isolation and identification of ten compounds (1-10) including two unusual sulfur-containing curvularin macrolides (1 and 2) from a Hawaiian fungal strain Aspergillus polyporicola FS910. Compounds 1 and 2 are rare curvularin macrolides each with a five-membered cyclic sulfur-containing moiety. The structures of the compounds were identified by HRESIMS, NMR spectroscopy, X-ray crystallography, ECD and DFT energy calculation, as well as comparing with previous literatures. Compounds 4, 6 and 8 were active against TNF-α-induced NF-κB inhibitory activity with IC50 values of 26.45, 5.41 and 15.8 µM, respectively. Compounds 3 and 5-8 exhibited anti-proliferative activity against HT1080, T46D, and A2780S cell lines, with IC50 values ranging from 2.48 to 29.17 μM. Additionally, Compound 3 showed promising antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA), Bacillus subtilis, Escherichia coli and Candida albicans. Moreover, when tested in combination with antibiotic adjuvant disulfiram [4 µg/mL], compounds 4, 5 and 10 also displayed significant antibacterial activity against S. aureus. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02877-7.
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Affiliation(s)
- Cong Wang
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning, 530006 People's Republic of China
| | - K H Ahammad Uz Zaman
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
| | - Ariel M Sarotti
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, 2000 Rosario, Argentina
| | - Xiaohua Wu
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138 USA
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720 USA
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12
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del Río RE, Joseph-Nathan P. Vibrational Circular Dichroism Absolute Configuration of Natural Products From 2015 to 2019. Nat Prod Commun 2021. [DOI: 10.1177/1934578x21996166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Although demonstrated in 1975, vibrational circular dichroism (VCD) finally started to popularize during this century as a reliable tool to determine the absolute configuration (AC) of organic molecules. This research field continues to be a very dynamic one, in particular for the study of natural products which are a unlimited source of chiral molecules. It therefore turns of interest to summarize the accomplishments published in recent years and to comment on some eventual difficulties that emerged in rare cases to complete the AC determination task. Therefore the aim of this review is to update VCD results for the AC assignment of natural products published from 2015 to 2019, a period in which VCD was reported in some 126 publications involving almost 300 molecules. They are organized according the type of studied metabolite allowing an easily search. The molecules correspond to 28 monoterpenes concerning 17 papers, to 42 sesquiterpenes in 14 papers, to 51 diterpenes in 19 publications, to 5 other terpenoids in three papers, to 48 aromatic molecules in 15 reports, to 20 polyketides in 10 publications, to 27 miscellaneous formulas also in 10 papers, and to 76 nitrogen containing compounds, which include alkaloids and their synthetic analogs, in 38 articles. The landscape of reviewed molecules is quite wide as it goes from simple monoterpenes, like borneol or camphor, to very relevant biological molecules like the alkaloid cocaine or tadalafil samples to distinguish genuine and counterfeit Cialis®. In addition, 5 natural products and a simple derivative published outside the reviewed period, were used to illustrate some aspects of density functional theory calculations.
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Affiliation(s)
- Rosa E. del Río
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia, Mexico
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
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13
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Meng ZH, Sun TT, Zhao GZ, Yue YF, Chang QH, Zhu HJ, Cao F. Marine-derived fungi as a source of bioactive indole alkaloids with diversified structures. MARINE LIFE SCIENCE & TECHNOLOGY 2021; 3:44-61. [PMID: 37073395 PMCID: PMC10077242 DOI: 10.1007/s42995-020-00072-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/09/2020] [Indexed: 05/03/2023]
Abstract
Marine-derived fungi are well known as rich sources of bioactive natural products. Growing evidences indicated that indole alkaloids, isolated from a variety of marine-derived fungi, have attracted considerable attention for their diverse, challenging structural complexity and promising bioactivities, and therefore, indole alkaloids have potential to be pharmaceutical lead compounds. Systemic compilation of the relevant literature. In this review, we demonstrated a comprehensive overview of 431 new indole alkaloids from 21 genera of marine-derived fungi with an emphasis on their structures and bioactivities, covering literatures published during 1982-2019.
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Affiliation(s)
- Zhi-Hui Meng
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Tian-Tian Sun
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Guo-Zheng Zhao
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Yu-Fei Yue
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Qing-Hua Chang
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Hua-Jie Zhu
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
| | - Fei Cao
- College of Pharmaceutical Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002 China
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14
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Xu K, Yuan XL, Li C, Li XD. Recent Discovery of Heterocyclic Alkaloids from Marine-Derived Aspergillus Species. Mar Drugs 2020; 18:E54. [PMID: 31947564 PMCID: PMC7024353 DOI: 10.3390/md18010054] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 12/19/2022] Open
Abstract
Nitrogen heterocycles have drawn considerable attention due to of their significant biological activities. The marine fungi residing in extreme environments are among the richest sources of these basic nitrogen-containing secondary metabolites. As one of the most well-known universal groups of filamentous fungi, marine-derived Aspergillus species produce a large number of structurally unique heterocyclic alkaloids. This review attempts to provide a comprehensive summary of the structural diversity and biological activities of heterocyclic alkaloids that are produced by marine-derived Aspergillus species. Herein, a total of 130 such structures that were reported from the beginning of 2014 through the end of 2018 are included, and 75 references are cited in this review, which will benefit future drug development and innovation.
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Affiliation(s)
- Kuo Xu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (K.X.); (X.-L.Y.)
| | - Xiao-Long Yuan
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (K.X.); (X.-L.Y.)
| | - Chen Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China;
- Key Laboratory of marine biotechnology in Universities of Shandong (Ludong University), School of Life Sciences, Ludong University, Yantai 264025, China
| | - Xiao-Dong Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China;
- Key Laboratory of marine biotechnology in Universities of Shandong (Ludong University), School of Life Sciences, Ludong University, Yantai 264025, China
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15
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Polavarapu PL, Santoro E. Vibrational optical activity for structural characterization of natural products. Nat Prod Rep 2020; 37:1661-1699. [DOI: 10.1039/d0np00025f] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review presents the recent progress towards elucidating the structures of chiral natural products and applications using vibrational optical activity (VOA) spectroscopy.
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16
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Del Río-Chávez ÁA, García-Gutiérrez HA, Román-Marín LU, Beiza-Granados L, Cerda-García-Rojas CM, Joseph-Nathan P, Hernández-Hernández JD. Absolute configuration of phomactatriene diterpenoids obtained by Wagner-Meerwein rearrangement of epimeric verticillols. Chirality 2019; 31:934-946. [PMID: 31436870 DOI: 10.1002/chir.23061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/22/2018] [Accepted: 12/30/2018] [Indexed: 11/11/2022]
Abstract
The epimeric diterpenes (+)-(1S,3E,7E,11S,12S)-verticilla-3,7-dien-12-ol (1), isolated from Bursera suntui, and (+)-(1S,3E,7E,11S,12R)-verticilla-3,7-dien-12-ol (2), isolated from Bursera kerberi, gave the same Wagner-Meerwein rearrangement product (-)-(1E,4Z,8Z,11S,12R)-phomacta-1,(15)4,8-triene (3). The Et2 O:BF3 -induced transformations evidence that verticillenes and phomactanes, both containing the bicyclo[9.3.1]pentadecane skeleton, are biogenetically related through the verticillen-12-yl cation (A+ ), which also is a key intermediate in the biosynthetic pathways to generate antitumor taxanes. Molecular modeling using the Monte Carlo protocol, followed by density functional theory (DFT) geometry optimization employing the hybrid functionals B3LYP and B3PW91, both with the DGDZVP basis set, secured the configuration of 3 as followed from the good agreement between the calculated and experimental vibrational circular dichroism spectra. Similar DFT calculations allowed determining the absolute configuration of (+)-(1R,4R,5R,8S,9S,11S,12R,15R)-1,15:4,5:8,9-triepoxyphomactane (9), which surprisingly derives from epoxidation of the second minimum energy conformer of 3.
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Affiliation(s)
- Ángel A Del Río-Chávez
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Hugo A García-Gutiérrez
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Luisa U Román-Marín
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | | | - Carlos M Cerda-García-Rojas
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Juan D Hernández-Hernández
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
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17
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Aparicio-Cuevas MA, González MDC, Raja H, Rivero-Cruz I, Kurina SJ, Burdette JE, Oberlies NH, Figueroa M. Metabolites from the Marine-Facultative Aspergillus sp. MEXU 27854 and Gymnoascus hyalinosporus MEXU 29901 from Caleta Bay, Mexico. Tetrahedron Lett 2019; 60:1649-1652. [PMID: 32390667 DOI: 10.1016/j.tetlet.2019.05.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
During our ongoing research on fungal strains from unexplored sources, the reinvestigation of the CHCl3-MeOH extract of the marine-facultative Aspergillus sp. MEXU 27854 yielded a new N-methyl cyclic pentapeptide (1) along with known butyrolactone II and PF1233 A. In addition, from the marine-facultative Gymnoascus hyalinosporus MEXU 29901, a new alternariol glucoside, 10-O-[β-D-(4-methoxyl-glucopyranosyl)]-4-O-methylalternariol (2) and known alternariol 4-O-methyl ether, alternariol and beauvericin, were isolated. The structures of 1 and 2 were established by detailed spectroscopic data, and their absolute configuration was ascertained by Marfey's analysis and HRESIMS-MS/MS data for 1, and by chemical degradation and optical rotation analysis for 2.
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Affiliation(s)
| | | | - Huzefa Raja
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Isabel Rivero-Cruz
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Steven J Kurina
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Joanna E Burdette
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Nicholas H Oberlies
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, North Carolina 27402, United States
| | - Mario Figueroa
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
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18
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Králová P, Benická S, Soural M. Polymer-Assisted Synthesis of Single and Fused Diketomorpholines. ACS COMBINATORIAL SCIENCE 2019; 21:154-157. [PMID: 30640439 DOI: 10.1021/acscombsci.8b00176] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of different diketomorpholines via N-acyl-3,4-dihydro-2 H-1,4-oxazine-3-carboxylic acids is reported in this article. The key intermediates were prepared using a convenient solid-phase synthesis starting from polymer-supported Ser( tBu)-OH. After subsequent sulfonylation with 4-nitrobenzenesulfonyl chloride (4-Nos-Cl), alkylation with an α-bromoketone, cleavage of the 4-Nos group and acylation with an α-halocarboxylic acids, acid-mediated cleavage from the resin yielded dihydrooxazine-3-carboxylic acids in high crude purities. Depending on the reaction conditions, exposure to base resulted in cyclization to either oxazino[3,4- c][1,4]oxazine-diones or 3-methylidenemorpholine-2,5-diones. Further reaction with triethylsilane-trifluoroacetic acid (TES/TFA) led to olefin reduction, in the case of oxazino[3,4- c][1,4]oxazine-dione with full control of the newly formed stereocenter.
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Affiliation(s)
- Petra Králová
- Department of Organic Chemistry, Faculty of Science, Palacký University, 771 46 Olomouc, Czech Republic
| | - Sandra Benická
- Department of Organic Chemistry, Faculty of Science, Palacký University, 771 46 Olomouc, Czech Republic
| | - Miroslav Soural
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 5, 779 00, Olomouc, Czech Republic
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19
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Abstract
Covering: January to December 2017This review covers the literature published in 2017 for marine natural products (MNPs), with 740 citations (723 for the period January to December 2017) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1490 in 477 papers for 2017), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. Geographic distributions of MNPs at a phylogenetic level are reported.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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20
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Wang MZ, Si TX, Ku CF, Zhang HJ, Li ZM, Chan ASC. Synthesis of Javanicunines A and B, 9-Deoxy-PF1233s A and B, and Absolute Configuration Establishment of Javanicunine B. J Org Chem 2018; 84:831-839. [PMID: 30562032 DOI: 10.1021/acs.joc.8b02650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Javanicunines A-B and 9-deoxy-PF1233s A-B belong to a family of natural diketomorpholines with a unique isopropenyl group at C-10b or C-5a and a hydroxyl group at C-11a or C-10b. We herein reported the first total synthesis of javanicunines A-B and 9-deoxy-PF1233s A-B. Pivotal features of the synthesis included a nucleophilic substitution reaction, followed by a Davis' oxaziridine oxidation to assemble javanicunines A-B, and a chemoselective and stereoselective oxidation with Murray's reagent to install the requisite C-10b hydroxyl group in 9-deoxy-PF1233s A-B. The present synthesis also established the absolute configuration of javanicunine B.
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Affiliation(s)
- Ming-Zhong Wang
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China.,School of Chinese Medicine , Hong Kong Baptist University , 7 Baptist University Road , Kowloon Tong , Hong Kong SAR , People's Republic of China
| | - Tong-Xu Si
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
| | - Chuen-Fai Ku
- School of Chinese Medicine , Hong Kong Baptist University , 7 Baptist University Road , Kowloon Tong , Hong Kong SAR , People's Republic of China
| | - Hong-Jie Zhang
- School of Chinese Medicine , Hong Kong Baptist University , 7 Baptist University Road , Kowloon Tong , Hong Kong SAR , People's Republic of China
| | - Zheng-Ming Li
- State Key Laboratory of Elemento-organic Chemistry, Research Institute of Elemento-organic Chemistry , Nankai University , Tianjin 300071 , People's Republic of China
| | - Albert S C Chan
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , People's Republic of China
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21
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Aspergoterpenins A⁻D: Four New Antimicrobial Bisabolane Sesquiterpenoid Derivatives from an Endophytic Fungus Aspergillus versicolor. Molecules 2018; 23:molecules23061291. [PMID: 29843405 PMCID: PMC6100428 DOI: 10.3390/molecules23061291] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 05/18/2018] [Accepted: 05/22/2018] [Indexed: 01/20/2023] Open
Abstract
Aspergoterpenins A⁻D (1⁻4), four new bisabolane sesquiterpenoid derivatives, were obtained from the endophytic fungus, Aspergillus versicolor, together with eight known compounds (5⁻12), and their structures were elucidated by a comprehensive analysis of their NMR (Nuclear Magnetic Resonance), MS (Mass Spectrum) and CD (Circular Dichroism) spectra. Aspergoterpenin A (1) was the first example with a characteristic ketal bridged-ring part in the degraded natural bisabolane-type sesquiterpene structures. The compounds 1⁻12 displayed no significant activities against four cancer cell lines (A549, Caski, HepG2 and MCF-7). Further, the antimicrobial activities to Erwinia carotovora sub sp. Carotovora were evaluated, and the results showed that compounds 1⁻12 displayed antimicrobial activities with MIC values ranging from 15.2 to 85.2 μg/mL.
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22
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Robey MT, Ye R, Bok JW, Clevenger KD, Islam MN, Chen C, Gupta R, Swyers M, Wu E, Gao P, Thomas PM, Wu CC, Keller NP, Kelleher NL. Identification of the First Diketomorpholine Biosynthetic Pathway Using FAC-MS Technology. ACS Chem Biol 2018; 13:1142-1147. [PMID: 29631395 DOI: 10.1021/acschembio.8b00024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Filamentous fungi are prolific producers of secondary metabolites with drug-like properties, and their genome sequences have revealed an untapped wealth of potential therapeutic leads. To better access these secondary metabolites and characterize their biosynthetic gene clusters, we applied a new platform for screening and heterologous expression of intact gene clusters that uses fungal artificial chromosomes and metabolomic scoring (FAC-MS). We leverage FAC-MS technology to identify the biosynthetic machinery responsible for production of acu-dioxomorpholine, a metabolite produced by the fungus, Aspergilllus aculeatus. The acu-dioxomorpholine nonribosomal peptide synthetase features a new type of condensation domain (designated CR) proposed to use a noncanonical arginine active site for ester bond formation. Using stable isotope labeling and MS, we determine that a phenyllactate monomer deriving from phenylalanine is incorporated into the diketomorpholine scaffold. Acu-dioxomorpholine is highly related to orphan inhibitors of P-glycoprotein targets in multidrug-resistant cancers, and identification of the biosynthetic pathway for this compound class enables genome mining for additional derivatives.
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Affiliation(s)
- Matthew T. Robey
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois 60208, United States
| | - Rosa Ye
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Jin Woo Bok
- Department of Medical Microbiology and Immunology and Department of Bacteriology, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Kenneth D. Clevenger
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois 60208, United States
| | - Md Nurul Islam
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Cynthia Chen
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Raveena Gupta
- Department of Medical Microbiology and Immunology and Department of Bacteriology, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Michael Swyers
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Edward Wu
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Peng Gao
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois 60208, United States
| | - Paul M. Thomas
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois 60208, United States
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois 60208, United States
| | - Chengcang C. Wu
- Intact
Genomics,
Inc., St Louis, Missouri 63132, United States
| | - Nancy P. Keller
- Department of Medical Microbiology and Immunology and Department of Bacteriology, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Neil L. Kelleher
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois 60208, United States
- Proteomics Center of Excellence, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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23
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Two New Diketomorpholine Derivatives and a New Highly Conjugated Ergostane-Type Steroid from the Marine Algal-Derived Endophytic Fungus Aspergillus alabamensis EN-547. Mar Drugs 2018; 16:md16040114. [PMID: 29614724 PMCID: PMC5923401 DOI: 10.3390/md16040114] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 03/27/2018] [Accepted: 03/30/2018] [Indexed: 12/20/2022] Open
Abstract
Chemical investigation of the marine algal-derived endophytic fungus Aspergillus alabamensis EN-547 resulted in the isolation of 4-epi-seco-shornephine A methyl ester (1) and 4-epi-seco-shornephine A carboxylic acid (2), two new secondary metabolites having a rare diketomorpholine motif, and 28-acetoxy-12β,15α,25-trihydroxyergosta-4,6,8(14),22-tetraen-3-one (3), a new highly conjugated ergostane-type steroid, together with four known metabolites (4-7). Their chemical structures were elucidated by detailed analysis of their NMR spectra, ECDs, HRESIMS, optical rotation, and X-ray crystallographic data, and by comparison with literature data as well. The antimicrobial activities of compounds 1-7 were evaluated.
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24
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Wang MZ, Si TX, Ku CF, Li XW, Li ZM, Zhang HJ, Chan ASC. Total synthesis and absolute configuration reassignment of mollenines A and B. Org Chem Front 2018. [DOI: 10.1039/c7qo00985b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first total synthesis of mollenines A and B has been accomplished, and their absolute stereochemistry corrected.
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Affiliation(s)
- Ming-Zhong Wang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- People's Republic of China
- School of Chinese Medicine
| | - Tong-Xu Si
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- People's Republic of China
| | - Chuen-Fai Ku
- School of Chinese Medicine
- Hong Kong Baptist University
- Kowloon Tong
- PR China
| | - Xiao-Wan Li
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- People's Republic of China
| | - Zheng-Ming Li
- State Key Laboratory of Elemento-organic Chemistry
- Research Institute of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Hong-Jie Zhang
- School of Chinese Medicine
- Hong Kong Baptist University
- Kowloon Tong
- PR China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- People's Republic of China
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