1
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Lin FL, Gao JL, Xu Q, Wang GQ, Xiao LY, Dong L, Tang W, Lv JM, Chen GD, Wang Y, Yin ZN, Lu LG, Hu D, Gao H. Absolute Configuration of Oxabornyl Polyenes Prugosenes A1-A3 and Structural Revision of Prugosene A2. JOURNAL OF NATURAL PRODUCTS 2024; 87:1338-1346. [PMID: 38447084 DOI: 10.1021/acs.jnatprod.3c01143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Oxabornyl polyenes represent a unique group of polyketides characterized by a central polyene core flanked by a conserved oxabornyl moiety and a structurally diverse oxygen heterocyclic ring. They are widely distributed in fungi and possess a variety of biological activities. Due to the significant spatial separation between the two stereogenic ring systems, it is difficult to establish their overall relative configurations. Here, we isolated three oxabornyl polyenes, prugosenes A1-A3 (1-3), from Talaromyces sp. JNU18266-01. Although these compounds were first reported from Penicillium rugulosum, their overall relative and absolute configurations remained unassigned. By employing ozonolysis in combination with ECD calculations, we were able to establish their absolute configurations, and additionally obtained seven new chemical derivatives (4-10). Notably, through NMR data analysis and quantum chemical calculations, we achieved the structural revision of prugosene A2. Furthermore, prugosenes A1-A3 exhibited potent antiviral activity against the respiratory syncytial virus, with compound 1 displaying an IC50 value of 6.3 μM. Our study thus provides a valuable reference for absolute configuration assignment of oxabornyl polyene compounds.
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Affiliation(s)
- Fu-Long Lin
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, Guangdong China
| | - Jia-Ling Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Qian Xu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Gao-Qian Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Liang-Yan Xiao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Lu Dong
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Wei Tang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Ying Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Zhi-Nan Yin
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, Guangdong China
- The Biomedical Translational Research Institute, Faculty of Medical Science, Jinan University, Guangzhou, 510632, China
| | - Li-Gong Lu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, Guangdong China
| | - Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
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2
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Sato H. Theoretical Study of Natural Product Biosynthesis Using Computational Chemistry. Chem Pharm Bull (Tokyo) 2024; 72:524-528. [PMID: 38825452 DOI: 10.1248/cpb.c24-00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
The biosynthetic pathways of natural products are complicated, and it is difficult to fully elucidate their details using experimental chemistry alone. In recent years, efforts have been made to elucidate the biosynthetic reaction mechanisms by combining computational and experimental methods. In this review, we will discuss the biosynthetic studies using computational chemistry for various terpene compounds such as cyclooctatin, sesterfisherol, quiannulatene, trichobrasilenol, asperterpenol, preasperterpenoid, spiroviolene, and mangicol.
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Affiliation(s)
- Hajime Sato
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
- PRESTO, Japan Science and Technology Agency
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3
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Niwa K, Ohashi M, Xie K, Chiang CY, Jamieson CS, Sato M, Watanabe K, Liu F, Houk K, Tang Y. Biosynthesis of Polycyclic Natural Products from Conjugated Polyenes via Tandem Isomerization and Pericyclic Reactions. J Am Chem Soc 2023; 145:13520-13525. [PMID: 37310230 PMCID: PMC10871872 DOI: 10.1021/jacs.3c02380] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report biosynthetic pathways that can synthesize and transform conjugated octaenes and nonaenes to complex natural products. The biosynthesis of (-)-PF1018 involves an enzyme PfB that can control the regio-, stereo-, and periselectivity of multiple reactions starting from a conjugated octaene. Using PfB as a lead, we discovered a homologous enzyme, BruB, that facilitates diene isomerization, tandem 8π-6π-electrocyclization, and a 1,2-divinylcyclobutane Cope rearrangement to generate a new-to-nature compound.
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Affiliation(s)
- Kanji Niwa
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
| | - Masao Ohashi
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
| | - Kaili Xie
- College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Chen-Yu Chiang
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
| | - Cooper S. Jamieson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Fang Liu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - K.N. Houk
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
| | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, USA
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4
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Matsuyama T, Togashi K, Nakano M, Sato H, Uchiyama M. Revision of the Peniroquesine Biosynthetic Pathway by Retro-Biosynthetic Theoretical Analysis: Ring Strain Controls the Unique Carbocation Rearrangement Cascade. JACS AU 2023; 3:1596-1603. [PMID: 37388688 PMCID: PMC10301677 DOI: 10.1021/jacsau.3c00039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 07/01/2023]
Abstract
Peniroquesine, a sesterterpenoid featuring a unique 5/6/5/6/5 fused pentacyclic ring system, has been known for a long time, but its biosynthetic pathway/mechanism remains elusive. Based on isotopic labeling experiments, a plausible biosynthetic pathway to peniroquesines A-C and their derivatives was recently proposed, in which the characteristic peniroquesine-type 5/6/5/6/5 pentacyclic skeleton is synthesized from geranyl-farnesyl pyrophosphate (GFPP) via a complex concerted A/B/C-ring formation, repeated reverse-Wagner-Meerwein alkyl shifts, three successive secondary (2°) carbocation intermediates, and a highly distorted trans-fused bicyclo[4.2.1]nonane intermediate. However, our density functional theory calculations do not support this mechanism. By applying a retro-biosynthetic theoretical analysis strategy, we were able to find a preferred pathway for peniroquesine biosynthesis, involving a multistep carbocation cascade including triple skeletal rearrangements, trans-cis isomerization, and 1,3-H shift. This pathway/mechanism is in good agreement with all of the reported isotope-labeling results.
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Affiliation(s)
- Taro Matsuyama
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ko Togashi
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Moe Nakano
- Interdisciplinary
Graduate School of Medicine and Engineering, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Hajime Sato
- Interdisciplinary
Graduate School of Medicine and Engineering, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Masanobu Uchiyama
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Research
Initiative for Supra-Materials (RISM), Shinshu
University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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5
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Chiang CY, Ohashi M, Tang Y. Deciphering chemical logic of fungal natural product biosynthesis through heterologous expression and genome mining. Nat Prod Rep 2023; 40:89-127. [PMID: 36125308 PMCID: PMC9906657 DOI: 10.1039/d2np00050d] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Covering: 2010 to 2022Heterologous expression of natural product biosynthetic gene clusters (BGCs) has become a widely used tool for genome mining of cryptic pathways, bottom-up investigation of biosynthetic enzymes, and engineered biosynthesis of new natural product variants. In the field of fungal natural products, heterologous expression of a complete pathway was first demonstrated in the biosynthesis of tenellin in Aspergillus oryzae in 2010. Since then, advances in genome sequencing, DNA synthesis, synthetic biology, etc. have led to mining, assignment, and characterization of many fungal BGCs using various heterologous hosts. In this review, we will highlight key examples in the last decade in integrating heterologous expression into genome mining and biosynthetic investigations. The review will cover the choice of heterologous hosts, prioritization of BGCs for structural novelty, and how shunt products from heterologous expression can reveal important insights into the chemical logic of biosynthesis. The review is not meant to be exhaustive but is rather a collection of examples from researchers in the field, including ours, that demonstrates the usefulness and pitfalls of heterologous biosynthesis in fungal natural product discovery.
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Affiliation(s)
- Chen-Yu Chiang
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Masao Ohashi
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
| | - Yi Tang
- Dept. of Chemical and Biomolecular Engineering, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA.
- Dept. of Chemistry and Biochemistry, 5531 Boelter Hall, 420 Westwood Plaza, Los Angeles, CA 90095, USA
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6
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Ning Y, Xu Y, Jiao B, Lu X. Application of Gene Knockout and Heterologous Expression Strategy in Fungal Secondary Metabolites Biosynthesis. Mar Drugs 2022; 20:705. [PMID: 36355028 PMCID: PMC9699552 DOI: 10.3390/md20110705] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/12/2022] Open
Abstract
The in-depth study of fungal secondary metabolites (SMs) over the past few years has led to the discovery of a vast number of novel fungal SMs, some of which possess good biological activity. However, because of the limitations of the traditional natural product mining methods, the discovery of new SMs has become increasingly difficult. In recent years, with the rapid development of gene sequencing technology and bioinformatics, new breakthroughs have been made in the study of fungal SMs, and more fungal biosynthetic gene clusters of SMs have been discovered, which shows that the fungi still have a considerable potential to produce SMs. How to study these gene clusters to obtain a large number of unknown SMs has been a research hotspot. With the continuous breakthrough of molecular biology technology, gene manipulation has reached a mature stage. Methods such as gene knockout and heterologous expression techniques have been widely used in the study of fungal SM biosynthesis and have achieved good effects. In this review, the representative studies on the biosynthesis of fungal SMs by gene knockout and heterologous expression under the fungal genome mining in the last three years were summarized. The techniques and methods used in these studies were also briefly discussed. In addition, the prospect of synthetic biology in the future under this research background was proposed.
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Affiliation(s)
| | | | | | - Xiaoling Lu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China
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7
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Patel HD, Fallon T. Two Steps to Bicyclo[4.2.0]octadienes from Cyclooctatetraene: Total Synthesis of Kingianic Acid A. Org Lett 2022; 24:2276-2281. [PMID: 35293754 DOI: 10.1021/acs.orglett.2c00325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Synthetic approaches to bicyclo[4.2.0]octadiene natural products frequently employ the synthesis of linear tetraenes to initiate a biosynthetic 8π/6π-electrocyclization cascade. This work forges a functionalized bicyclo[4.2.0]octadiene in two steps from cyclooctatetraene. The versatility of this method is demonstrated through natural product synthesis, including the first total synthesis of kingianic acid A and formal syntheses of kingianins A, D, and F and cryptobeilic acid D ethyl ester. The unexpected formation of an E,E,Z,E-tetraene byproduct is rationalized through density functional theory modeling.
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Affiliation(s)
- Harshal D Patel
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005 (Australia)
| | - Thomas Fallon
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005 (Australia)
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8
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Kotani A, Ozaki T, Takino J, Mochizuki S, Akimitsu K, Minami A, Oikawa H. Heterologous expression of a polyketide synthase ACRTS2 in Aspergillus oryzae produces host-selective ACR toxins: coproduction of minor metabolites. Biosci Biotechnol Biochem 2022; 86:287-293. [PMID: 34894229 DOI: 10.1093/bbb/zbab214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/03/2021] [Indexed: 11/14/2022]
Abstract
Previously, we succeeded to produce the core structure of the host-selective ACR toxin (1) on brown leaf spot on rough lemon when the polyketide synthase ACRTS2 gene was heterologously expressed in Aspergillus oryzae (AO). To confirm the production of 1 in AO, the detection limit and suppressing decarboxylation were improved, and these efforts led us to conclude the direct production of 1 instead of its decarboxylation product. During this examination, minor ACR-toxin-related metabolites were found. Their structure determination enabled us to propose a decarboxylation mechanism and a novel branching route forming byproducts from the coupling of the dihydropyrone moiety of 1 with the acetaldehyde and kojic acid abundant in AO. The involvement of putative cyclase ACRTS3 in the chain release of linear polyketide was excluded by the coexpression analysis of ACRTS2 and ACRTS3. Taken together, we concluded that the production of 1 in AO is solely responsible for ACRTS2.
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Affiliation(s)
- Akari Kotani
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Taro Ozaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Junya Takino
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Susumu Mochizuki
- International Institute of Rare Sugar Research and Education and Faculty of Agriculture, Kagawa University, Kagawa, Japan
| | - Kazuya Akimitsu
- International Institute of Rare Sugar Research and Education and Faculty of Agriculture, Kagawa University, Kagawa, Japan
| | - Atsushi Minami
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Hideaki Oikawa
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Japan
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9
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Abstract
Covering: 2020This review covers the literature published in 2020 for marine natural products (MNPs), with 757 citations (747 for the period January to December 2020) 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 (1407 in 420 papers for 2020), together with the relevant biological activities, source organisms and country of origin. Pertinent reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. A meta analysis of bioactivity data relating to new MNPs reported over the last five years is also presented.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. .,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.,School of Enivironment and Science, 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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10
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Cao F, Tao WT, Yu Q, Xu CX, Cheng JT, Liu RX, Zhao QW, Jiang XH, Liu Y, Li YQ, Zhan ZJ, Shi T, Mao XM. Discovery of Semi-Pinacolases from the Epoxide Hydrolase Family during Efficient Assembly of a Fungal Polyketide. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Fei Cao
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
| | - Wen-Tao Tao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
- Clinical Research Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Qian Yu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chu-Xuan Xu
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
| | - Jin-Tao Cheng
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
| | - Ruo-Xi Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qing-Wei Zhao
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
| | - Xin-Hang Jiang
- Equipment and Technology Service Platform, College of Life Science, Zhejiang University, Hangzhou 310058, China
| | - Yu Liu
- Equipment and Technology Service Platform, College of Life Science, Zhejiang University, Hangzhou 310058, China
| | - Yong-Quan Li
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
| | - Zha-Jun Zhan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ting Shi
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xu-Ming Mao
- Research Center for Clinical Pharmacy, The First Affiliated Hospital & Institute of Pharmaceutical Biotechnology, School of Medicine, Zhejiang University, Hangzhou 310058, China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Zhejiang University, Hangzhou 310058, China
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11
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Takino J, Kotani A, Ozaki T, Peng W, Yu J, Guo Y, Mochizuki S, Akimitsu K, Hashimoto M, Ye T, Minami A, Oikawa H. Biochemistry-Guided Prediction of the Absolute Configuration of Fungal Reduced Polyketides. Angew Chem Int Ed Engl 2021; 60:23403-23411. [PMID: 34448341 DOI: 10.1002/anie.202110658] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Indexed: 11/08/2022]
Abstract
Highly reducing polyketide synthases (HR-PKSs) produce structurally diverse polyketides (PKs). The PK diversity is constructed by a variety of factors, including the β-keto processing, chain length, methylation pattern, and relative and absolute configurations of the substituents. We examined the stereochemical course of the PK processing for the synthesis of polyhydroxy PKs such as phialotides, phomenoic acid, and ACR-toxin. Heterologous expression of a HR-PKS gene, a trans-acting enoylreductase gene, and a truncated non-ribosomal peptide synthetase gene resulted in the formation of a linear PK with multiple stereogenic centers. The absolute configurations of the stereogenic centers were determined by chemical degradation followed by comparison of the degradation products with synthetic standards. A stereochemical rule was proposed to explain the absolute configurations of other reduced PKs and highlights an error in the absolute configurations of a reported structure. The present work demonstrates that focused functional analysis of functionally related HR-PKSs leads to a better understanding of the stereochemical course.
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Affiliation(s)
- Junya Takino
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Akari Kotani
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Taro Ozaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Wenquan Peng
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Jie Yu
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Xili, Nanshan District, Shenzhen, 518055, China.,School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Xili, Nanshan District, Shenzhen, 518055, China.,School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, China
| | - Susumu Mochizuki
- International Institute of Rare Sugar Research and Education & Faculty of Agriculture, Kagawa University, Kagawa, 761-0795, Japan
| | - Kazuya Akimitsu
- International Institute of Rare Sugar Research and Education & Faculty of Agriculture, Kagawa University, Kagawa, 761-0795, Japan
| | - Masaru Hashimoto
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, 036-8561, Japan
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Atsushi Minami
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hideaki Oikawa
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
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12
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Takino J, Kotani A, Ozaki T, Peng W, Yu J, Guo Y, Mochizuki S, Akimitsu K, Hashimoto M, Ye T, Minami A, Oikawa H. Biochemistry‐Guided Prediction of the Absolute Configuration of Fungal Reduced Polyketides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Junya Takino
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
| | - Akari Kotani
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
| | - Taro Ozaki
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
| | - Wenquan Peng
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Jie Yu
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Xili, Nanshan District Shenzhen 518055 China
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 China
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Xili, Nanshan District Shenzhen 518055 China
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 China
| | - Susumu Mochizuki
- International Institute of Rare Sugar Research and Education & Faculty of Agriculture Kagawa University Kagawa 761-0795 Japan
| | - Kazuya Akimitsu
- International Institute of Rare Sugar Research and Education & Faculty of Agriculture Kagawa University Kagawa 761-0795 Japan
| | - Masaru Hashimoto
- Faculty of Agriculture and Life Science Hirosaki University Hirosaki 036-8561 Japan
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Atsushi Minami
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
| | - Hideaki Oikawa
- Department of Chemistry Faculty of Science Hokkaido University Sapporo 060-0810 Japan
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13
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de Souza WC, Matsuo BT, Matos PM, Correia JTM, Santos MS, König B, Paixão MW. Photocatalyzed Intramolecular [2+2] Cycloaddition of N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides. Chemistry 2021; 27:3722-3728. [PMID: 32955792 DOI: 10.1002/chem.202003641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 02/05/2023]
Abstract
N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides are converted into natural product inspired scaffolds via iridium photocatalyzed intramolecular [2+2] photocycloaddition. The protocol has a broad substrate scope, whilst operating under mild reaction conditions. Tethering four components forming a trisubstituted cyclobutane core builds rapidly high molecular complexity. Our approach allows the design and synthesis of a variety of tetrahydrocyclobuta[c]quinolin-3(1H)-ones, in yields ranging between 20-99 %, and with excellent regio- and diastereoselectivity. Moreover, it was demonstrated that the intramolecular [2+2]-cycloaddition of 1,7-enynes-after fragmentation of the cyclobutane ring-leads to enyne-metathesis-like products.
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Affiliation(s)
- Wanderson C de Souza
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Bianca T Matsuo
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Priscilla M Matos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - José Tiago M Correia
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
| | - Marilia S Santos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil.,Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Marcio W Paixão
- Department of Chemistry, Federal University of São Carlos-UFSCar, Centre of Excellence for Research in Sustainable Chemistry, (CERSusChem), São Carlos, São Paulo, Brazil
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14
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Urabe D, Fukaya K. Systematic Search for Transition States in Complex Molecules: Computational Analyses of Regio- and Stereoselective Interflavan Bond Formation in Flavan-3-ols. HETEROCYCLES 2021. [DOI: 10.3987/rev-20-943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Heterologous biosynthesis as a platform for producing new generation natural products. Curr Opin Biotechnol 2020; 66:123-130. [DOI: 10.1016/j.copbio.2020.06.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022]
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16
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Qin P, Wang L, O'Connor JM, Baldridge KK, Li Y, Tufekci B, Chen J, Rheingold AL. Transition‐Metal Catalysis of Triene 6π Electrocyclization: The π‐Complexation Strategy Realized. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pengjin Qin
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Li‐An Wang
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Joseph M. O'Connor
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Kim K. Baldridge
- School of Pharmaceutical Science and Technology Tianjin University 92 Weijin Road, Nankai District Tianjin P. R. China
| | - Yifan Li
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Burak Tufekci
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Jiyue Chen
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry University of California, San Diego La Jolla CA 92093-0358 USA
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17
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Qin P, Wang LA, O'Connor JM, Baldridge KK, Li Y, Tufekci B, Chen J, Rheingold AL. Transition-Metal Catalysis of Triene 6π Electrocyclization: The π-Complexation Strategy Realized. Angew Chem Int Ed Engl 2020; 59:17958-17965. [PMID: 32510720 DOI: 10.1002/anie.202006992] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Indexed: 01/14/2023]
Abstract
Triene 6π electrocyclization, wherein a conjugated triene undergoes a concerted stereospecific cycloisomerization to a cyclohexadiene, is a reaction of great historical and practical significance. In order to circumvent limitations imposed by the normally harsh reaction conditions, chemists have long sought to develop catalytic variants based upon the activating power of metal-alkene coordination. Herein, we demonstrate the first successful implementation of such a strategy by utilizing [(C5 H5 )Ru(NCMe)3 ]PF6 as a precatalyst for the disrotatory 6π electrocyclization of highly substituted trienes that are resistant to thermal cyclization. Mechanistic and computational studies implicate hexahapto transition-metal coordination as responsible for lowering the energetic barrier to ring closure. This work establishes a foundation for the development of new catalysts for stereoselective electrocyclizations.
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Affiliation(s)
- Pengjin Qin
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Li-An Wang
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Joseph M O'Connor
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Kim K Baldridge
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, P. R. China
| | - Yifan Li
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Burak Tufekci
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Jiyue Chen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
| | - Arnold L Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA, 92093-0358, USA
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18
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2020. [DOI: 10.1039/d0np90022b] [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 personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as sporormielone A from a Sporormiella species.
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