1
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Synthesis of Chromone‐Spiroindolinone‐Cyclopentene Derivatives through Phosphine‐Catalyzed (3+2) Annulation of Morita‐Baylis‐Hillman Carbonates with Oxindole‐Chromones. ChemistrySelect 2022. [DOI: 10.1002/slct.202203340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Structural analysis of previously unknown natural products using computational methods. J Nat Med 2022; 76:719-724. [PMID: 35849303 PMCID: PMC9411225 DOI: 10.1007/s11418-022-01637-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/22/2022] [Indexed: 10/24/2022]
Abstract
Natural products exhibit structural diversity, and biologically active natural products with unprecedented molecular skeletons can potentially be isolated from natural resources in the future. Although it has often been difficult to determine the structures and configurations of new compounds that do not resemble known compounds, the determination of the chemical structures, including the absolute stereo configuration, is very important in drug discovery research. In our efforts to find new bioactive natural products, we have identified novel compounds such as the ubiquitin-proteasome system inhibitors and osteoclast differentiation inhibitors. Various natural products, mixtures of stereoisomers of natural products, and compounds with novel skeletal structures were studied. In cases where it was difficult to determine the structures by NMR spectroscopy, we could successfully determine the chemical structures by computational chemistry. This review presents the results of structural analysis obtained using computational methods for several natural products that we have recently isolated.
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3
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Cong M, Pang X, Zhao K, Song Y, Liu Y, Wang J. Deep-Sea Natural Products from Extreme Environments: Cold Seeps and Hydrothermal Vents. Mar Drugs 2022; 20:404. [PMID: 35736207 PMCID: PMC9229347 DOI: 10.3390/md20060404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 12/28/2022] Open
Abstract
The deep sea has been proven to be a great treasure for structurally unique and biologically active natural products in the last two decades. Cold seeps and hydrothermal vents, as typical representatives of deep-sea extreme environments, have attracted more and more attention. This review mainly summarizes the natural products of marine animals, marine fungi, and marine bacteria derived from deep-sea cold seeps and hydrothermal vents as well as their biological activities. In general, there were 182 compounds reported, citing 132 references and covering the literature from the first report in 1984 up to March 2022. The sources of the compounds are represented by the genera Aspergillus sp., Penicillium sp., Streptomyces sp., and so on. It is worth mentioning that 90 of the 182 compounds are new and that almost 60% of the reported structures exhibited diverse bioactivities, which became attractive targets for relevant organic synthetic and biosynthetic studies.
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Affiliation(s)
- Mengjing Cong
- 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Xiaoyan Pang
- 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Kai Zhao
- 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
| | - Yue Song
- 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Yonghong 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Junfeng 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 510301, China; (M.C.); (X.P.); (K.Z.); (Y.S.); (Y.L.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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4
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Li K, Chen S, Pang X, Cai J, Zhang X, Liu Y, Zhu Y, Zhou X. Natural products from mangrove sediments-derived microbes: Structural diversity, bioactivities, biosynthesis, and total synthesis. Eur J Med Chem 2022; 230:114117. [PMID: 35063731 DOI: 10.1016/j.ejmech.2022.114117] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/28/2021] [Accepted: 01/09/2022] [Indexed: 12/25/2022]
Abstract
The mangrove forests are a complex ecosystem, and the microbial communities in mangrove sediments play a critical role in the biogeochemical cycles of mangrove ecosystems. Mangrove sediments-derived microbes (MSM), as a rich reservoir of natural product diversity, could be utilized in the exploration of new antibiotics or drugs. To understand the structural diversity and bioactivities of the metabolites of MSM, this review for the first time provides a comprehensive overview of 519 natural products isolated from MSM with their bioactivities, up to 2021. Most of the structural types of these compounds are alkaloids, lactones, xanthones, quinones, terpenoids, and steroids. Among them, 210 compounds are obtained from bacteria, most of which are from Streptomyces, while 309 compounds are from fungus, especially genus Aspergillus and Penicillium. The pharmacological mechanisms of some representative lead compounds are well studied, revealing that they have important medicinal potentials, such as piericidins with anti-renal cell cancer effects, azalomycins with anti-MRSA activities, and ophiobolins as antineoplastic agents. The biosynthetic pathways of representative natural products from MSM have also been summarized, especially ikarugamycin, piericidins, divergolides, and azalomycins. In addition, the total synthetic strategies of representative secondary metabolites from MSM are also reviewed, such as piericidin A and borrelidin. This review provides an important reference for the research status of natural products isolated from MSM and the lead compounds worthy of further development, and reveals that MSM have important medicinal values and are worthy of further development.
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Affiliation(s)
- Kunlong Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Department of Emergency Medicine, Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Siqiang Chen
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| | - Xiaoyan Pang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Jian Cai
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xinya Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| | - Yiguang Zhu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Sanya Institute of Oceanology, SCSIO, Sanya, 572000, China.
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China.
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5
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Fraley AE, Tran HT, Kelly SP, Newmister SA, Tripathi A, Kato H, Tsukamoto S, Du L, Li S, Williams RM, Sherman DH. Flavin-Dependent Monooxygenases NotI and NotI' Mediate Spiro-Oxindole Formation in Biosynthesis of the Notoamides. Chembiochem 2020; 21:2449-2454. [PMID: 32246875 PMCID: PMC7483341 DOI: 10.1002/cbic.202000004] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/04/2020] [Indexed: 11/08/2022]
Abstract
The fungal indole alkaloids are a unique class of complex molecules that have a characteristic bicyclo[2.2.2]diazaoctane ring and frequently contain a spiro-oxindole moiety. While various strains produce these compounds, an intriguing case involves the formation of individual antipodes by two unique species of fungi in the generation of the potent anticancer agents (+)- and (-)-notoamide A. NotI and NotI' have been characterized as flavin-dependent monooxygenases that catalyze epoxidation and semi-pinacol rearrangement to form the spiro-oxindole center within these molecules. This work elucidates a key step in the biosynthesis of the notoamides and provides an evolutionary hypothesis regarding a common ancestor for production of enantiopure notoamides.
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Affiliation(s)
- Amy E Fraley
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
- Department of Medicinal Chemistry, University of Michigan, 428 Church St., Ann Arbor, MI 48109, USA
| | - Hong T Tran
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
- Program in Chemical Biology, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 48109, USA
| | - Samantha P Kelly
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
- Program in Chemical Biology, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 48109, USA
| | - Sean A Newmister
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
| | - Ashootosh Tripathi
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
- Department of Medicinal Chemistry, University of Michigan, 428 Church St., Ann Arbor, MI 48109, USA
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto, 862-0973, Japan
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto, 862-0973, Japan
| | - Lei Du
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China
| | - Robert M Williams
- Department of Chemistry, Colorado State University, 1301 Center Ave., Fort Collins, CO 80523, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, 210 Washtenaw Ave., Ann Arbor, MI 28104, USA
- Department of Medicinal Chemistry, University of Michigan, 428 Church St., Ann Arbor, MI 48109, USA
- Department of Microbiology and Immunology, University of Michigan Medical School, 1150W. Medical Center Drive, Ann Arbor, MI 48109
- Department of Chemistry, University of Michigan, 930N. University Ave., Ann Arbor, MI 48109, USA
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6
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Fraley AE, Sherman DH. Enzyme evolution in fungal indole alkaloid biosynthesis. FEBS J 2020; 287:1381-1402. [PMID: 32118354 PMCID: PMC7317620 DOI: 10.1111/febs.15270] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/24/2019] [Accepted: 02/27/2020] [Indexed: 12/28/2022]
Abstract
The class of fungal indole alkaloids containing the bicyclo[2.2.2]diazaoctane ring is comprised of diverse molecules that display a range of biological activities. While much interest has been garnered due to their therapeutic potential, this class of molecules also displays unique chemical functionality, making them intriguing synthetic targets. Many elegant and intricate total syntheses have been developed to generate these alkaloids, but the selectivity required to produce them in high yield presents great barriers. Alternatively, if we can understand the molecular mechanisms behind how fungi make these complex molecules, we can leverage the power of nature to perform these chemical transformations. Here, we describe the various studies regarding the evolutionary development of enzymes involved in fungal indole alkaloid biosynthesis.
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Affiliation(s)
- Amy E. Fraley
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
| | - David H. Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, United States
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7
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Zhou LM, Qu RY, Yang GF. An overview of spirooxindole as a promising scaffold for novel drug discovery. Expert Opin Drug Discov 2020; 15:603-625. [PMID: 32106717 DOI: 10.1080/17460441.2020.1733526] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Introduction: Spirooxindole, a unique and versatile scaffold, has been widely studied in some fields such as pharmaceutical chemistry and synthetic chemistry. Especially in the application of medicine, quite a few compounds featuring spirooxindole motif have displayed excellent and broad pharmacological activities. Many identified candidate molecules have been used in clinical trials, showing promising prospects.Areas covered: This article offers an overview of different applications and developments of spirooxindoles (including the related natural products and their derivatives) in the process of drug innovation, including such as in anticancer, antimicrobial, anti-inflammatory, analgesic, antioxidant, antimalarial, and antiviral activities. Furthermore, the crucial structure-activity relationships, molecular mechanisms, pharmacokinetic properties, and main synthetic methods of spirooxindoles-based derivatives are also reviewed.Expert opinion: Recent progress in the biological activity profiles of spirooxindole derivatives have demonstrated their significant position in present-day drug discovery. Furthermore, we believe that the multidirectional development of novel drugs containing this core scaffold will continue to be the research hotspot in medicinal chemistry in the future.
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Affiliation(s)
- Li-Ming Zhou
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Ren-Yu Qu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
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8
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Klas KR, Kato H, Frisvad JC, Yu F, Newmister SA, Fraley AE, Sherman DH, Tsukamoto S, Williams RM. Structural and stereochemical diversity in prenylated indole alkaloids containing the bicyclo[2.2.2]diazaoctane ring system from marine and terrestrial fungi. Nat Prod Rep 2019; 35:532-558. [PMID: 29632911 DOI: 10.1039/c7np00042a] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Covering: up to February 2017 Various fungi of the genera Aspergillus, Penicillium, and Malbranchea produce prenylated indole alkaloids possessing a bicyclo[2.2.2]diazaoctane ring system. After the discovery of distinct enantiomers of the natural alkaloids stephacidin A and notoamide B, from A. protuberus MF297-2 and A. amoenus NRRL 35660, another fungi, A. taichungensis, was found to produce their diastereomers, 6-epi-stephacidin A and versicolamide B, as major metabolites. Distinct enantiomers of stephacidin A and 6-epi-stephacidin A may be derived from a common precursor, notoamide S, by enzymes that form a bicyclo[2.2.2]diazaoctane core via a putative intramolecular hetero-Diels-Alder cycloaddition. This review provides our current understanding of the structural and stereochemical homologies and disparities of these alkaloids. Through the deployment of biomimetic syntheses, whole-genome sequencing, and biochemical studies, a unified biogenesis of both the dioxopiperazine and the monooxopiperazine families of prenylated indole alkaloids constituted of bicyclo[2.2.2]diazaoctane ring systems is presented.
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Affiliation(s)
- Kimberly R Klas
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, CO 80523, USA.
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9
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Kai A, Kato H, Sherman DH, Williams RM, Tsukamoto S. Isolation of a new indoxyl alkaloid, Amoenamide B, from Aspergillus amoenus NRRL 35600: biosynthetic implications and correction of the structure of Speramide B. Tetrahedron Lett 2018; 50:4236-4240. [PMID: 30765898 DOI: 10.1016/j.tetlet.2018.10.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A new prenylated indoxyl alkaloid, Amoenamide B (1), was isolated from Aspergillus amoenus NRRL 35600 along with Asperochramide A (2). Although many prenylated oxyindole alkaloids, containing bicyclo[2.2.2]diazaoctane cores, have been isolated from the fungus of the genera Aspergillus and Penicillium to date, 1 is the fourth compound with the indoxyl unit containing the cores. During the structure elucidation of 1, we found that the planar structure matched to that of Speramide A (3), isolated from A. ochraceus KM007, but the reported structure of 3 was incorrect and turned out to be that of Taichunamide H (4), recently isolated from A. versicolor HDN11-84.
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Affiliation(s)
- Aika Kai
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - David H Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, United States.,Departments of Medicinal Chemistry, Microbiology & Immunology, and Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Robert M Williams
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, Colorado 80523, United States.,University of Colorado Cancer Center, Aurora, Colorado 80045, United States
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
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10
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Enantioselective inhibitory abilities of enantiomers of notoamides against RANKL-induced formation of multinuclear osteoclasts. Bioorg Med Chem Lett 2017; 27:4975-4978. [PMID: 29037945 DOI: 10.1016/j.bmcl.2017.10.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 11/24/2022]
Abstract
The marine-derived Aspergillus protuberus MF297-2 and the terrestrial A. amoenus NRRL 35600 produce enantiomeric prenylated indole alkaloids. Investigation of biological activities of the natural and synthetic derivatives revealed that (-)-enantiomers of notoamides A and B, 6-epi-notoamide T, and stephacidin A inhibited receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced osteoclastogenic differentiation of murine RAW264 cells more strongly than their respective (+)-enantiomers. Among them, (-)-6-epi-notoamide T was the most potent inhibitor with an IC50 value of 1.7μM.
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11
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Zhang J, Cheng C, Wang D, Miao Z. Regio- and Diastereoselective Construction of Spirocyclopenteneoxindoles through Phosphine-Catalyzed [3 + 2] Annulation of Methyleneindolinone with Alkynoate Derivatives. J Org Chem 2017; 82:10121-10128. [DOI: 10.1021/acs.joc.7b01582] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiayong Zhang
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Cheng Cheng
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Dian Wang
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Zhiwei Miao
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, College
of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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12
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Sugimoto K, Sadahiro Y, Kagiyama I, Kato H, Sherman DH, Williams RM, Tsukamoto S. Isolation of amoenamide A and five antipodal prenylated alkaloids from Aspergillus amoenus NRRL 35600. Tetrahedron Lett 2017; 58:2797-2800. [PMID: 29622844 DOI: 10.1016/j.tetlet.2017.05.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A new prenylated alkaloid, Amoenamide A (6), was isolated from the fungus Aspergillus amoenus NRRL 35600. Previously, 6 was postulated to be a precursor of Notoamide E4 (21) converted from Notoamide E (16), which was a key precursor of the prenylated indole alkaloids in the fungi of the genus Aspergillus. We previously succeeded in the isolation of two pairs of antipodes, Stephacidin A (1) and Notoamide B (2), from A. amoenus and A. protuberus MF297-2 and expected the presence of other antipodes in the culture of A. amoenus. We here report five new antipodes (7-11) along with a new metabolite (12), which was isolated as a natural compound for the first time, from A. amoenus.
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Affiliation(s)
- Kayo Sugimoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - Yusaku Sadahiro
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - Ippei Kagiyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
| | - David H Sherman
- Life Sciences Institute and Departments of Medicinal Chemistry, Chemistry, Microbiology & Immunology, The University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109-2216, United States
| | - Robert M Williams
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, Colorado 80523, United States.,University of Colorado Cancer Center, Aurora, Colorado 80045
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Kumamoto, Japan
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13
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Wu CJ, Li CW, Gao H, Huang XJ, Cui CB. Penicimutamides D–E: two new prenylated indole alkaloids from a mutant of the marine-derived Penicillium purpurogenum G59. RSC Adv 2017. [DOI: 10.1039/c7ra02446k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two new prenylated indole alkaloids, penicimutamides D–E (1–2), were discovered via activating silent pathways in a marine-derived fungus.
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Affiliation(s)
- Chang-Jing Wu
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
- College of Life Science and Agronomy
| | - Chang-Wei Li
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Hao Gao
- Institute of Traditional Chinese Medicine & Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine & Natural Products
- College of Pharmacy
- Jinan University
- Guangzhou 510632
- China
| | - Cheng-Bin Cui
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
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14
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Xia Z, Hu J, Gao YQ, Yao Q, Xie W. Facile access to 2,2-disubstituted indolin-3-ones via a cascade Fischer indolization/Claisen rearrangement reaction. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03754f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
From readily accessible arylhydrazines and allyloxyketones, 2,2-disubstituted indolin-3-ones could be obtained in good to excellent yields via a cascade Fischer indolization/Claisen rearrangement process.
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Affiliation(s)
- Zilei Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling 712100
- China
| | - Jiadong Hu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling 712100
- China
| | - Yu-Qi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling 712100
- China
| | - Qizheng Yao
- Department of Medicinal Chemistry & State Key Laboratory of Natural Medicines
- Center of Drug Discovery
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- Yangling 712100
- China
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15
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Speramides A–B, two new prenylated indole alkaloids from the freshwater-derived fungus Aspergillus ochraceus KM007. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Shen GL, Sun J, Xie YJ, Yan CG. Synthesis of densely substituted dispirocyclopentanebisoxindoles by base promoted sequential reaction of two different 3-methyleneoxindoles with thiol. ChemistrySelect 2016. [DOI: 10.1002/slct.201600209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guo-Liang Shen
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Jing Sun
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Ya-Jing Xie
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002 China
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17
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Lavey NP, Coker JA, Ruben EA, Duerfeldt AS. Sclerotiamide: The First Non-Peptide-Based Natural Product Activator of Bacterial Caseinolytic Protease P. JOURNAL OF NATURAL PRODUCTS 2016; 79:1193-1197. [PMID: 26967980 PMCID: PMC4841720 DOI: 10.1021/acs.jnatprod.5b01091] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Caseinolytic protease P (ClpP) maintains essential roles in bacterial homeostasis. As such, both the inhibition and activation of this enzyme result in bactericidal activity, making ClpP a promising target for antibacterial drug development. Herein, we report the results of a fluorescence-based screen of ∼450 structurally diverse fungal and bacterial secondary metabolites. Sclerotiamide (1), a paraherquamide-related indolinone, was identified as the first non-peptide-based natural product activator of ClpP. Structure-activity relationships arising from the initial screen, preliminary biochemical evaluation of 1, and rationale for the exploitation of this chemotype to develop novel ClpP activators are presented.
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Affiliation(s)
- Nathan P. Lavey
- Institute for Natural Products Applications and Research Technologies, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
| | - Jesse A. Coker
- Institute for Natural Products Applications and Research Technologies, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
| | - Eliza A. Ruben
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
- Protein Production Core, University of Oklahoma COBRE in Structural Biology, Norman, Oklahoma 73019, United States
| | - Adam S. Duerfeldt
- Institute for Natural Products Applications and Research Technologies, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States
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18
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Robins JG, Kim KJ, Chinn AJ, Woo JS, Scheerer JR. Intermolecular Diels-Alder Cycloaddition for the Construction of Bicyclo[2.2.2]diazaoctane Structures: Formal Synthesis of Brevianamide B and Premalbrancheamide. J Org Chem 2016; 81:2293-301. [PMID: 26916112 DOI: 10.1021/acs.joc.5b02744] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A stereoselective intermolecular Diels-Alder cycloaddition of an intermediate pyrazinone with both achiral and chiral acrylate-derived dienophiles provides rapid access to the bicyclo[2.2.2]diazaoctane core shared among several prenylated indole alkaloids. The product derived from cycloaddition with 2-nitroacrylate required an additional five to six synthetic operations to intercept established precursors to premalbrancheamide and brevianamide B. The chemistry detailed in this manuscript constitutes a formal total synthesis (12 steps each) of these [2.2.2]diazabicyclic natural products from proline methyl ester.
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Affiliation(s)
- Jacob G Robins
- Department of Chemistry, The College of William & Mary , P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Kyu J Kim
- Department of Chemistry, The College of William & Mary , P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Alex J Chinn
- Department of Chemistry, The College of William & Mary , P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - John S Woo
- Department of Chemistry, The College of William & Mary , P.O. Box 8795, Williamsburg, Virginia 23187, United States
| | - Jonathan R Scheerer
- Department of Chemistry, The College of William & Mary , P.O. Box 8795, Williamsburg, Virginia 23187, United States
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19
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Li CW, Wu CJ, Cui CB, Xu LL, Cao F, Zhu HJ. Penicimutamides A–C: rare carbamate-containing alkaloids from a mutant of the marine-derived Penicillium purpurogenum G59. RSC Adv 2016. [DOI: 10.1039/c6ra14904a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three new and rare carbamate-containing penicimutamides A–C (1–3) were discovered via activating silent pathways in a marine-derived fungus.
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Affiliation(s)
- Chang-Wei Li
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Chang-Jing Wu
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Cheng-Bin Cui
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing 100850
- China
| | - Lan-Lan Xu
- Chinese Center for Chirality
- Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of the Ministry of Education
- College of Pharmacy
- Hebei University
- Baoding 071002
| | - Fei Cao
- Chinese Center for Chirality
- Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of the Ministry of Education
- College of Pharmacy
- Hebei University
- Baoding 071002
| | - Hua-Jie Zhu
- Chinese Center for Chirality
- Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of the Ministry of Education
- College of Pharmacy
- Hebei University
- Baoding 071002
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20
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Zhang P, Li XM, Wang JN, Li X, Wang BG. Prenylated indole alkaloids from the marine-derived fungus Paecilomyces variotii. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2014.11.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Kato H, Nakahara T, Sugimoto K, Matsuo K, Kagiyama I, Frisvad JC, Sherman DH, Williams RM, Tsukamoto S. Isolation of notoamide S and enantiomeric 6-epi-stephacidin A from the fungus Aspergillus amoenus: biogenetic implications. Org Lett 2015; 17:700-3. [PMID: 25615822 DOI: 10.1021/ol5037198] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Notoamide S has been hypothesized to be a key biosynthetic intermediate for characteristic metabolites stephacidin A, notoamide B, and versicolamide B in Aspergillus sp. but has not yet been isolated. The isolation of notoamide S and an enantiomeric mixture of 6-epi-stephacidin A enriched with the (-)-isomer from Aspergillus amoenus is reported. The presence of (+)-versicolamide B suggests that the fungus possesses only the oxidase, which converts (+)-6-epi-stephacidin A into (+)-Versicolamide B, but not for (-)-6-epi-Stephacidin A.
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Affiliation(s)
- Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University , 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
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22
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Arulananda Babu S, Padmavathi R, Ahmad Aslam N, Rajkumar V. Recent Developments on the Synthesis and Applications of Natural Products-Inspired Spirooxindole Frameworks. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2015. [DOI: 10.1016/b978-0-444-63462-7.00008-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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23
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Kato H, Nakahara T, Yamaguchi M, Kagiyama I, Finefield JM, Sunderhaus JD, Sherman DH, Williams RM, Tsukamoto S. Bioconversion of 6- epi-Notoamide T Produces Metabolites of Unprecedented Structures in a Marine-derived Aspergillus sp. Tetrahedron Lett 2015; 56:247-251. [PMID: 25767298 DOI: 10.1016/j.tetlet.2014.11.083] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We previously described the bioconversion of Notoamide T into (+)-Stephacidin A and (-)-Notoamide B, which suggested that Versicolamide B (8) is biosynthesized from 6-epi-Notoamide T (10) via 6-epi-Stephacidin A. Here we report that [13C]2-10 was incorporated into isotopically enriched 8 and seven new metabolites, which were not produced under normal culture conditions. The results suggest that the addition of excess precursor activated the expression of dormant tailoring genes giving rise to these structurally unprecedented metabolites.
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Affiliation(s)
- Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Takashi Nakahara
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Michitaka Yamaguchi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Ippei Kagiyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Jennifer M Finefield
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, Colorado 80523, USA
| | - James D Sunderhaus
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, Colorado 80523, USA
| | - David H Sherman
- Life Sciences Institute and Department of Medicinal Chemistry, The University of Michigan, 210 Washtenaw Avenue, Ann Arbor, Michigan 48109-2216, USA
| | - Robert M Williams
- Department of Chemistry, Colorado State University, 1301 Center Avenue, Fort Collins, Colorado 80523, USA ; University of Colorado Cancer Center, Aurora, Colorado 80045, USA
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
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24
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Hu XL, Bian XQ, Wu X, Li JY, Hua HM, Pei YH, Han AH, Bai J. Penioxalamine A, a novel prenylated spiro-oxindole alkaloid from Penicillium oxalicum TW01-1. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Sun J, Xie YJ, Yan CG. Construction of Dispirocyclopentanebisoxindoles via Self-Domino Michael-Aldol Reactions of 3-Phenacylideneoxindoles. J Org Chem 2013; 78:8354-65. [DOI: 10.1021/jo4010603] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ya-Jing Xie
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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26
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Lingam KAP, Shanmugam P. A facile and efficient synthesis of 3-spirocyclopentene-2-oxindoles via palladium mediated vinylcyclopropane–cyclopentene rearrangement of oxindole derived vinylcyclopropanes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.05.104] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Simpkins NS, Pavlakos I, Weller MD, Male L. The cascade radical cyclisation approach to prenylated alkaloids: synthesis of stephacidin A and notoamide B. Org Biomol Chem 2013; 11:4957-70. [PMID: 23797367 DOI: 10.1039/c3ob40979a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A strategy for the synthesis of members of the prenylated indole alkaloid family is described, which involves a radical cascade process of an appropriately substituted diketopiperazine (DKP) core structure. Several approaches to the generation of the initial radical were explored, with the most successful involving treatment of a sulfenyl substituted DKP under classical reductive conditions by heating with Bu3SnH and a radical initiator. The required, fully substituted, radical precursor DKP structures were prepared using regio- and stereocontrolled enolate chemistry of simpler proline-tryptophan derived DKPs. The new approach allowed rapid access to a key polycyclic indoline structure, which was converted into either of the natural products stephacidin A or notoamide B.
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Affiliation(s)
- Nigel S Simpkins
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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28
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Ji NY, Liu XH, Miao FP, Qiao MF. Aspeverin, a new alkaloid from an algicolous strain of Aspergillus versicolor. Org Lett 2013; 15:2327-9. [PMID: 23650962 DOI: 10.1021/ol4009624] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel carbamate- and cyano-containing alkaloid, aspeverin (1), was isolated from the culture of an algicolous Aspergillus versicolor strain (dl-29). The structure and absolute configuration were unambiguously identified by NMR, IR, ECD, and mass spectrometric methods as well as quantum chemical calculations. 1 exhibited potent bioactivities against some marine-derived organisms.
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Affiliation(s)
- Nai-Yun Ji
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences , Yantai 264003, China
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29
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Abstract
This review covers the literature published in 2011 for marine natural products, with 870 citations (558 for the period January to December 2011) 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 (1152 for 2011), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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30
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Cai S, Luan Y, Kong X, Zhu T, Gu Q, Li D. Isolation and Photoinduced Conversion of 6-epi-Stephacidins from Aspergillus taichungensis. Org Lett 2013; 15:2168-71. [DOI: 10.1021/ol400694h] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shengxin Cai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
| | - Yepeng Luan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
| | - Xianglan Kong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, P. R. China
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31
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Affiliation(s)
- Stephen W. Laws
- Department of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg,
Virginia 23187, United States
| | - Jonathan R. Scheerer
- Department of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg,
Virginia 23187, United States
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32
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Gomez C, Gicquel M, Carry JC, Schio L, Retailleau P, Voituriez A, Marinetti A. Phosphine-Catalyzed Synthesis of 3,3-Spirocyclopenteneoxindoles from γ-Substituted Allenoates: Systematic Studies and Targeted Applications. J Org Chem 2013; 78:1488-96. [DOI: 10.1021/jo302460d] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Catherine Gomez
- Institut de Chimie des Substances Naturelles - CNRS, UPR 2301, Centre de
Recherche de Gif-1, av de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Maxime Gicquel
- Institut de Chimie des Substances Naturelles - CNRS, UPR 2301, Centre de
Recherche de Gif-1, av de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Jean-Christophe Carry
- Chimie Médicinale Oncologie, Sanofi, 13 quai Jules Guesde, 94400 Vitry-sur-Seine,
France
| | - Laurent Schio
- Chimie Médicinale Oncologie, Sanofi, 13 quai Jules Guesde, 94400 Vitry-sur-Seine,
France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles - CNRS, UPR 2301, Centre de
Recherche de Gif-1, av de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles - CNRS, UPR 2301, Centre de
Recherche de Gif-1, av de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles - CNRS, UPR 2301, Centre de
Recherche de Gif-1, av de la Terrasse, 91198 Gif-sur-Yvette, France
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33
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a non-rearranged monoterpenoid unit. Nat Prod Rep 2013; 30:694-752. [DOI: 10.1039/c3np20118j] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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34
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Sunderhaus JD, McAfoos TJ, Finefield JM, Kato H, Li S, Tsukamoto S, Sherman DH, Williams RM. Synthesis and bioconversions of notoamide T: a biosynthetic precursor to stephacidin A and notoamide B. Org Lett 2012; 15:22-5. [PMID: 23249380 DOI: 10.1021/ol302901p] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In an effort to further elucidate the biogenesis of the stephacidin and notoamide families of natural products, notoamide T has been identified as the likely precursor to stephacidin A. The total synthesis of notoamide T is described along with it is C-6-epimer, 6-epi-notoamide T. The chemical conversion of stephacidin A to notoamide T by reductive ring opening is described as well as the oxidative conversion of notoamide T to stephacidin A. Furthermore, [(13)C](2)-notoamide T was synthesized and provided to Aspergillus versicolor and Aspergillus sp. MF297-2, in which significant incorporation was observed in the advanced metabolite, notoamide B.
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Affiliation(s)
- James D Sunderhaus
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
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36
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Li S, Anand K, Tran H, Yu F, Finefield JM, Sunderhaus JD, McAfoos TJ, Tsukamoto S, Williams RM, Sherman DH. Comparative analysis of the biosynthetic systems for fungal bicyclo[2.2.2]diazaoctane indole alkaloids: the (+)/(-)-notoamide, paraherquamide and malbrancheamide pathways. MEDCHEMCOMM 2012; 3:987-996. [PMID: 23213353 PMCID: PMC3511817 DOI: 10.1039/c2md20029e] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The biosynthesis of fungal bicyclo[2.2.2]diazaoctane indole alkaloids with a wide spectrum of biological activities have attracted increasing interest. Their intriguing mode of assembly has long been proposed to feature a non-ribosomal peptide synthetase, a presumed intramolecular Diels-Alderase, a variant number of prenyltransferases, and a series of oxidases responsible for the diverse tailoring modifications of their cyclodipeptide-based structural core. Until recently, the details of these biosynthetic pathways have remained largely unknown due to lack of information on the fungal derived biosynthetic gene clusters. Herein, we report a comparative analysis of four natural product metabolic systems of a select group of bicyclo[2.2.2]diazaoctane indole alkaloids including (+)/(-)-notoamide, paraherquamide and malbrancheamide, in which we propose an enzyme for each step in the biosynthetic pathway based on deep annotation and on-going biochemical studies.
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Affiliation(s)
- Shengying Li
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Krithika Anand
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Hong Tran
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Fengan Yu
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
| | | | - James D. Sunderhaus
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523
| | - Timothy J. McAfoos
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Robert M. Williams
- University of Colorado Cancer Center, Aurora, Colorado 80045, USA
- Departments of Medicinal Chemistry, Microbiology & Immunology, and Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - David H. Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan 48109, USA
- Departments of Medicinal Chemistry, Microbiology & Immunology, and Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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37
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Finefield JM, Sherman DH, Kreitman M, Williams RM. Enantiomeric natural products: occurrence and biogenesis. Angew Chem Int Ed Engl 2012; 51:4802-36. [PMID: 22555867 PMCID: PMC3498912 DOI: 10.1002/anie.201107204] [Citation(s) in RCA: 201] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Indexed: 01/07/2023]
Abstract
In nature, chiral natural products are usually produced in optically pure form-however, occasionally both enantiomers are formed. These enantiomeric natural products can arise from a single species or from different genera and/or species. Extensive research has been carried out over the years in an attempt to understand the biogenesis of naturally occurring enantiomers; however, many fascinating puzzles and stereochemical anomalies still remain.
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38
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Finefield JM, Sherman DH, Kreitman M, Williams RM. Enantiomere Naturstoffe: Vorkommen und Biogenese. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107204] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Finefield JM, Frisvad JC, Sherman DH, Williams RM. Fungal origins of the bicyclo[2.2.2]diazaoctane ring system of prenylated indole alkaloids. JOURNAL OF NATURAL PRODUCTS 2012; 75:812-33. [PMID: 22502590 PMCID: PMC3485739 DOI: 10.1021/np200954v] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Over eight different families of natural products consisting of nearly 70 secondary metabolites that contain the bicyclo[2.2.2]diazaoctane ring system have been isolated from various Aspergillus, Penicillium, and Malbranchea species. Since 1968, these secondary metabolites have been the focus of numerous biogenetic, synthetic, taxonomic, and biological studies and, as such, have made a lasting impact across multiple scientific disciplines. This review covers the isolation, biosynthesis, and biological activity of these unique secondary metabolites containing the bridging bicyclo[2.2.2]diazaoctane ring system. Furthermore, the diverse fungal origin of these natural products is closely examined and, in many cases, updated to reflect the currently accepted fungal taxonomy.
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Affiliation(s)
- Jennifer M Finefield
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
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Wang Y, Liu L, Zhang T, Zhong NJ, Wang D, Chen YJ. Diastereo- and Enantioselective [3 + 2] Cycloaddition Reaction of Morita–Baylis–Hillman Carbonates of Isatins with N-Phenylmaleimide Catalyzed by Me-DuPhos. J Org Chem 2012; 77:4143-7. [DOI: 10.1021/jo3002535] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan Wang
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Li Liu
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Tao Zhang
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Neng-Jun Zhong
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Graduate School of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Wang
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yong-Jun Chen
- Beijing National Laboratory
for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Williams RM. Natural products synthesis: enabling tools to penetrate Nature's secrets of biogenesis and biomechanism. J Org Chem 2011; 76:4221-59. [PMID: 21438619 PMCID: PMC3174107 DOI: 10.1021/jo2003693] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Selected examples from our laboratory of how synthetic technology platforms developed for the total synthesis of several disparate families of natural products was harnessed to penetrate biomechanistic and/or biosynthetic queries is discussed. Unexpected discoveries of biomechanistic reactivity and/or penetrating the biogenesis of naturally occurring substances were made possible through access to substances available only through chemical synthesis. Hypothesis-driven total synthesis programs are emerging as very useful conceptual templates for penetrating and exploiting the inherent reactivity of biologically active natural substances. In many instances, new enabling synthetic technologies were required to be developed. The examples demonstrate the often untapped richness of complex molecule synthesis to provide powerful tools to understand, manipulate and exploit Nature's vast and creative palette of secondary metabolites.
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Affiliation(s)
- Robert M Williams
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.
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