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Karpe SA, Mondal D. Synthesis of 3‐Hydroxy‐2‐oxindole and 2,5‐Diketopiperazine Cores as Privileged Scaffolds of Indole Alkaloids. ChemistrySelect 2022. [DOI: 10.1002/slct.202202516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sameer A. Karpe
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat India
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2
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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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Guo S, Zhang Z, Xu J, Li S, Fu Z, Cai H. Acid and 1, 2‐Dichloroethane Co‐Promoted Substitution of the Amino Groups in Gramine and its Analogues with Trialkyl Phosphites. ChemistrySelect 2019. [DOI: 10.1002/slct.201904138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shengmei Guo
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Zhebin Zhang
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Jianxin Xu
- The Second Clinical Medical CollegeNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Sen Li
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Zhengjiang Fu
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
| | - Hu Cai
- Department of ChemistryNanchang University Xuefu Rd. 999 Nanchang 330031 P. R. China
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Fernández GA, Chopa AB, Silbestri GF. A structure/catalytic activity study of gold(i)–NHC complexes, as well as their recyclability and reusability, in the hydration of alkynes in aqueous medium. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01278c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Comparative studies were carried out with the addition of different silver salts. Our results indicate that the bulkier complex is the most effective and that the addition of methanol as co-solvent not only shortens reaction times but also stabilizes the less bulky complexes.
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Affiliation(s)
- Gabriela A. Fernández
- Instituto de Química del Sur (INQUISUR)
- Departamento de Química
- Universidad Nacional del Sur
- B8000CPB Bahía Blanca
- Argentina
| | - Alicia B. Chopa
- Instituto de Química del Sur (INQUISUR)
- Departamento de Química
- Universidad Nacional del Sur
- B8000CPB Bahía Blanca
- Argentina
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR)
- Departamento de Química
- Universidad Nacional del Sur
- B8000CPB Bahía Blanca
- Argentina
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Berthet M, Davanier F, Dujardin G, Martinez J, Parrot I. MgI2-Mediated Chemoselective Cleavage of Protecting Groups: An Alternative to Conventional Deprotection Methodologies. Chemistry 2015; 21:11014-6. [DOI: 10.1002/chem.201501799] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Indexed: 01/08/2023]
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Zhang XY, Xu XY, Peng J, Ma CF, Nong XH, Bao J, Zhang GZ, Qi SH. Antifouling potentials of eight deep-sea-derived fungi from the South China Sea. ACTA ACUST UNITED AC 2014; 41:741-8. [PMID: 24532297 DOI: 10.1007/s10295-014-1412-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 01/24/2014] [Indexed: 10/25/2022]
Abstract
Abstract
Marine-derived microbial secondary metabolites are promising potential sources of nontoxic antifouling agents. The search for environmentally friendly and low-toxic antifouling components guided us to investigate the antifouling potentials of eight novel fungal isolates from deep-sea sediments of the South China Sea. Sixteen crude ethyl acetate extracts of the eight fungal isolates showed distinct antibacterial activity against three marine bacteria (Loktanella hongkongensis UST950701–009, Micrococcus luteus UST950701–006 and Pseudoalteromonas piscida UST010620–005), or significant antilarval activity against larval settlement of bryozoan Bugula neritina. Furthermore, the extract of Aspergillus westerdijkiae DFFSCS013 displayed strong antifouling activity in a field trial lasting 4 months. By further bioassay-guided isolation, five antifouling alkaloids including brevianamide F, circumdatin F and L, notoamide C, and 5-chlorosclerotiamide were isolated from the extract of A. westerdijkiae DFFSCS013. This is the first report about the antifouling potentials of metabolites of the deep-sea-derived fungi from the South China Sea, and the first stage towards the development of non- or low-toxic antifouling agents from deep-sea-derived fungi.
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Affiliation(s)
- Xiao-Yong Zhang
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
| | - Xin-Ya Xu
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
| | - Jiang Peng
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
| | - Chun-Feng Ma
- grid.79703.3a 0000000417643838 Faculty of Materials Science and Engineering South China University of Technology 510640 Guangzhou China
| | - Xu-Hua Nong
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
| | - Jie Bao
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
| | - Guang-Zhao Zhang
- grid.79703.3a 0000000417643838 Faculty of Materials Science and Engineering South China University of Technology 510640 Guangzhou China
| | - Shu-Hua Qi
- grid.9227.e 0000000119573309 Key Laboratory of Tropical Marine Bio-resources and Ecology, RNAM Center for Marine Microbiology, Guangdong Key Laboratory of Marine Material Medical, South China Sea Institute of Oceanology Chinese Academy of Sciences 164 West Xingang Road 510301 Guangzhou China
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Fan A, Li SM. One Substrate - Seven Products with Different Prenylation Positions in One-Step Reactions: Prenyltransferases Make it Possible. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hirose T, Noguchi Y, Furuya Y, Ishiyama A, Iwatsuki M, Otoguro K, Ōmura S, Sunazuka T. Structure Determination and Total Synthesis of (+)-16-Hydroxy-16,22-dihydroapparicine. Chemistry 2013; 19:10741-50. [DOI: 10.1002/chem.201300292] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/22/2013] [Indexed: 11/06/2022]
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Kothandaraman P, Koh BQ, Limpanuparb T, Hirao H, Chan PWH. 1-(2′-Anilinyl)prop-2-yn-1-ol Rearrangement for Oxindole Synthesis. Chemistry 2012. [DOI: 10.1002/chem.201202606] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Velazquez HD, Verpoort F. N-heterocyclic carbene transition metal complexes for catalysis in aqueous media. Chem Soc Rev 2012; 41:7032-60. [DOI: 10.1039/c2cs35102a] [Citation(s) in RCA: 299] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Li J, Liu Y, Li C, Jia X. Syntheses of spirocyclic oxindole-butenolides by using three-component cycloadditions of isocyanides, allenoates, and isatins. Chemistry 2011; 17:7409-13. [PMID: 21598327 DOI: 10.1002/chem.201100977] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 12/31/2022]
Affiliation(s)
- Jian Li
- Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai, 200444, PR China.
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Sunderhaus JD, Sherman DH, Williams RM. Studies on the Biosynthesis of the Stephacidin and Notoamide Natural Products: A Stereochemical and Genetic Conundrum. Isr J Chem 2011; 51:442-452. [PMID: 21818159 PMCID: PMC3148524 DOI: 10.1002/ijch.201100016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The stephacidin and notoamide natural products belong to a group of prenylated indole alkaloids containing a bicyclo[2.2.2]diazaoctane core. Biosynthetically, this bicyclic core is believed to be the product of an intermolecular Diels- Alder (IMDA) cycloaddition of an achiral azadiene. Since all of the natural products in this family have been isolated in enantiomerically pure form to date, it is believed that an elusive Diels-Alderase enzyme mediates the IMDA reaction. Adding further intrigue to this biosynthetic puzzle is the fact that several related Aspergillus fungi produce a number of metabolites with the opposite absolute configuration, implying that these fungi have evolved enantiomerically distinct Diels-Alderases. We have undertaken a program to identify every step in the biogenesis of the stephacidins and notoamides, and by combining the techniques of chemical synthesis and biochemical analysis we have been able to identify the two prenyltransferases involved in the early stages of the stephacidin and notoamide biosyntheses. This has allowed us to propose a modified biosynthesis for stephacidin A, and has brought us closer to our goal of finding evidence for, or against, the presence of a Diels-Alderase in this biosynthetic pathway.
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Affiliation(s)
- James D Sunderhaus
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA, phone: +1 970-491-6747, fax: +1 970-491-3944
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Nicolaou K, Chen J, Edmonds D, Estrada A. Fortschritte in der Chemie und Biologie natürlicher Antibiotika. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200801695] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nicolaou KC, Chen JS, Edmonds DJ, Estrada AA. Recent advances in the chemistry and biology of naturally occurring antibiotics. Angew Chem Int Ed Engl 2009; 48:660-719. [PMID: 19130444 PMCID: PMC2730216 DOI: 10.1002/anie.200801695] [Citation(s) in RCA: 184] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Ever since the world-shaping discovery of penicillin, nature's molecular diversity has been extensively screened for new medications and lead compounds in drug discovery. The search for agents intended to combat infectious diseases has been of particular interest and has enjoyed a high degree of success. Indeed, the history of antibiotics is marked with impressive discoveries and drug-development stories, the overwhelming majority of which have their origin in natural products. Chemistry, and in particular chemical synthesis, has played a major role in bringing naturally occurring antibiotics and their derivatives to the clinic, and no doubt these disciplines will continue to be key enabling technologies. In this review article, we highlight a number of recent discoveries and advances in the chemistry, biology, and medicine of naturally occurring antibiotics, with particular emphasis on total synthesis, analogue design, and biological evaluation of molecules with novel mechanisms of action.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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Gao Y, Lam Y. Polymer-SupportedN-Phenylsulfonyloxaziridine (Davis Reagent): A Versatile Oxidant. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800500] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Greshock TJ, Grubbs AW, Jiao P, Wicklow DT, Gloer JB, Williams RM. Isolation, structure elucidation, and biomimetic total synthesis of versicolamide B, and the isolation of antipodal (-)-stephacidin A and (+)-notoamide B from Aspergillus versicolor NRRL 35600. Angew Chem Int Ed Engl 2008; 47:3573-7. [PMID: 18389509 DOI: 10.1002/anie.200800106] [Citation(s) in RCA: 222] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas J Greshock
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
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Greshock T, Grubbs A, Jiao P, Wicklow D, Gloer J, Williams R. Isolation, Structure Elucidation, and Biomimetic Total Synthesis of Versicolamide B, and the Isolation of Antipodal (−)-Stephacidin A and (+)-Notoamide B fromAspergillus versicolor NRRL 35600. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800106] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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