1
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Guo LD, Wu Y, Xu X, Lin Z, Tong R. Bent π-Conjugation within a Macrocycle: Asymmetric Total Syntheses of Spirohexenolides A and B. Angew Chem Int Ed Engl 2024; 63:e202316259. [PMID: 37988261 DOI: 10.1002/anie.202316259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Macrocycles with bent π-conjugation motif are extremely rare in nature and synthetically daunting and anticancer haouamines and spirohexenolides were representative of such rare natural products with synthetically challenging bent π-conjugation within a macrocycle. While the total synthesis of haouamines has been elegantly achieved, spirohexenolides remains an unmet synthetic challenge due to the highly strained bent 1,3,5-triene conjugation within C15 macrocycle. Inspired by the chemical synthesis of cycloparaphenylenes (CPPs) and haouamines, herein we devise a synthetic strategy to overcome the highly strained bent 1,3,5-triene conjugation within the macrocycle and achieve the first, asymmetric total synthesis of spirohexenolides A (>20 mg) and B (>50 mg). Our synthesis features strategic design of ring-closing metathesis (RCM) macrocyclization followed by double dehydration to achieve the C15 macrocycle with the deformed nonplanar 1,3,5-triene conjugation. In addition, we have developed a new enantioselective construction of highly functionalized spirotetronate fragment (northeast moiety) through RCM and Ireland-Claisen rearrangement. Our in vitro bioassay studies reveal that both spirohexenolides are cytotoxic against a panel of human cancer cells with IC50 1.2-13.3 μM and spirohexenolide A is consistently more potent (up to 3 times) than spirohexenolide B, suggesting the importance of alcohol for their bioactivity and for medicinal chemistry development.
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Affiliation(s)
- Lian-Dong Guo
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, 999077, China
| | - Yanting Wu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, 999077, China
| | - Xin Xu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, 999077, China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, 999077, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, 999077, China
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2
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Dimakos V, Canterbury DP, Monfette S, Roosen PC, Newman SG. A Morita–Baylis–Hillman Inspired Cross-Coupling Strategy for the Direct α-Arylation of Cyclic Enones. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victoria Dimakos
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Daniel P. Canterbury
- Pfizer Medicine Design, Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Sebastien Monfette
- Pfizer Chemical Research and Development, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Philipp C. Roosen
- Pfizer Chemical Research and Development, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Stephen G. Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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3
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Shen SM, Appendino G, Guo YW. Pitfalls in the structural elucidation of small molecules. A critical analysis of a decade of structural misassignments of marine natural products. Nat Prod Rep 2022; 39:1803-1832. [PMID: 35770685 DOI: 10.1039/d2np00023g] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Covering: July 2010 to August 2021This article summarizes more than 200 cases of misassigned marine natural products reported between July 2010 and August 2021, sorting out errors according to the structural elements. Based on a comparative analysis of the original and the revised structures, major pitfalls still plaguing the structural elucidation of small molecules were identified, emphasizing the role of total synthesis, crystallography, as well as chemical- and biosynthetic logic to complement spectroscopic data. Distinct "trends" in natural product misassignment are evident between compounds of marine and plant origin, with an overall much lower incidence of "impossible" structures within misassigned marine natural products.
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Affiliation(s)
- Shou-Mao Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. .,School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Universitá degli Studi del Piemonte Orientale, Largo Donegani 2, 28100 Novara, Italy
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. .,Drug Discovery Shandong Laboratory, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
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4
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Zhang W, Li L, Li CC. Synthesis of natural products containing highly strained trans-fused bicyclo[3.3.0]octane: historical overview and future prospects. Chem Soc Rev 2021; 50:9430-9442. [PMID: 34286715 DOI: 10.1039/d0cs01471k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Owing to high strain energy, molecules with trans-fused bicyclo[3.3.0]octane ring systems are very difficult to synthesize, and there are very few approaches to access them. Recently, a number of natural products with such ring systems have been made by the synthetic community. However, there has been no review in this field before. This review provides a systematic and comprehensive discussion on the synthesis of natural products containing trans-fused bicyclo[3.3.0]octanes and the historical context of this work. The prospects for future research in this field are also discussed. Covering the literature before 2021, this review aims to offer a helpful reference for total synthesis of highly strained natural products containing trans-fused bicyclo[3.3.0]octane ring systems.
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Affiliation(s)
- Wen Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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5
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Zhang L, Bao W, Liang Y, Pan W, Li D, Kong L, Wang ZX, Peng B. Morita-Baylis-Hillman-Type [3,3]-Rearrangement: Switching from Z- to E-Selective α-Arylation by New Rearrangement Partners. Angew Chem Int Ed Engl 2021; 60:11414-11422. [PMID: 33644970 DOI: 10.1002/anie.202100497] [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: 01/12/2021] [Revised: 02/25/2021] [Indexed: 01/03/2023]
Abstract
α-aryl α,β-unsaturated carbonyls represent an important class of derivatizable synthetic intermediates, however, the synthesis of such compounds still remains a challenge. Recently, we showcased a novel Z-selective α-arylation of α,β-unsaturated nitriles with aryl sulfoxides via [3,3]-rearrangement involving an Morita-Baylis-Hillman (MBH) process. Herein, we demonstrate the feasibility of reversing the stereoselectivity of such MBH-type [3,3]-rearrangement by switching to a new pair of rearrangement partners consisting of aryl iodanes and α,β-unsaturated oxazolines. As a result, the two protocols complement each other in approaching E- or Z-α-aryl α,β-unsaturated carbonyl derivatives. Mechanistic studies reveal a possible reaction pathway and provide an explanation for the opposite stereoselectivities.
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Affiliation(s)
- Lei Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
| | - Wangzhen Bao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
| | - Yuchen Liang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenjing Pan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
| | - Dongyang Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
| | - Lichun Kong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Peng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua, 321004, China
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6
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Zhang L, Bao W, Liang Y, Pan W, Li D, Kong L, Wang Z, Peng B. Morita–Baylis–Hillman‐Type [3,3]‐Rearrangement: Switching from
Z
‐ to
E
‐Selective α‐Arylation by New Rearrangement Partners. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lei Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
| | - Wangzhen Bao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
| | - Yuchen Liang
- School of Chemical Sciences University of the Chinese Academy of Sciences Beijing 100049 China
| | - Wenjing Pan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
| | - Dongyang Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
| | - Lichun Kong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
| | - Zhi‐Xiang Wang
- School of Chemical Sciences University of the Chinese Academy of Sciences Beijing 100049 China
| | - Bo Peng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 China
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7
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Wang Y, Joullié MM. Approaches to Cyclophane-Types of Cyclopeptide Alkaloids. CHEM REC 2021; 21:906-923. [PMID: 33656243 DOI: 10.1002/tcr.202100017] [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: 01/20/2021] [Revised: 02/15/2021] [Indexed: 11/09/2022]
Abstract
The cyclopeptide alkaloids are cyclic depsipeptides incorporating cyclophanes with polyamide units 13-, 14- and 15-membered macrocyclic systems. Although various pharmacological activities have been ascribed to cyclopeptide alkaloids from plants of the Rhamnacea family, these studies have been hampered by their low availability due to the lack of reasonable amounts distributed in nature. Therefore, novel and efficient synthetic approaches should be an important aim, which inspired us to examine how to diversely construct the unique structures of this type of natural products. In this account, several typical strategies are presented in terms of efficient, stereocontrolled and regioselective synthesis of cyclopeptide alkaloids.
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Affiliation(s)
- Yuanhao Wang
- Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, PA 19104, USA
| | - Madeleine M Joullié
- Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, PA 19104, USA
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8
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Zhang W, Zhou ZX, Zhu XJ, Sun ZH, Dai WM, Li CC. Asymmetric Total Synthesis of the Highly Strained 4β-Acetoxyprobotryane-9β,15α-diol. J Am Chem Soc 2020; 142:19868-19873. [DOI: 10.1021/jacs.0c10116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wen Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Zi-Xiong Zhou
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xu-Jiang Zhu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhang-Hua Sun
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wei-Min Dai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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9
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Li XR, Chen SQ, Fan J, Li CJ, Wang X, Liu ZW, Shi XY. Controllable Tandem [3+2] Cyclization of Aromatic Aldehydes with Maleimides: Rhodium(III)-Catalyzed Divergent Synthesis of Indane-Fused Pyrrolidine-2,5-dione. Org Lett 2020; 22:8808-8813. [DOI: 10.1021/acs.orglett.0c03113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xin-Ran Li
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Si-Qi Chen
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Juan Fan
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Chao-Jun Li
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Xue Wang
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Zhong-Wen Liu
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Xian-Ying Shi
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
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10
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Tsukamoto H, Nakamura S, Tomida A, Doi T. Scalable Total Syntheses and Structure–Activity Relationships of Haouamines A, B, and Their Derivatives as Stable Formate Salts. Chemistry 2020; 26:12528-12532. [DOI: 10.1002/chem.202001756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Hirokazu Tsukamoto
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
- Department of Pharmaceutical Sciences Yokohama University of Pharmacy 601 Matano-cho, Totsuka-ku Yokohama 245-0066 Japan
| | - Saki Nakamura
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Akito Tomida
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences Tohoku University 6-3 Aza-aoba, Aramaki, Aoba-ku Sendai 980-8578 Japan
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11
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Park KHK, Rizzo A, Chen DYK. Late-stage and strain-accelerated oxidation enabled synthesis of haouamine A. Chem Sci 2020; 11:8132-8137. [PMID: 33033612 PMCID: PMC7499817 DOI: 10.1039/d0sc02299c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/15/2020] [Indexed: 12/03/2022] Open
Abstract
Herein we report a new synthetic entry to the strained cyclophane alkaloid natural product, haouamine A. The successful strategy featured a rhodium-catalyzed diazo-insertion reaction to install the all-carbon quaternary center and a rhodium-catalyzed intramolecular aziridination reaction to establish the nitrogen-bearing stereocenter, of the target molecule. Most notably, a late-stage, site-selective and strain-accelerated oxidation of a "deoxygenated" macrocyclic intermediate was successfully implemented, and in doing so provided a novel solution to the infamous biphenol cyclophane system of haouamine A.
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Affiliation(s)
- Kun Ho Kenny Park
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 08826 , South Korea .
| | - Antonio Rizzo
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 08826 , South Korea .
| | - David Y-K Chen
- Department of Chemistry , Seoul National University , Gwanak-1 Gwanak-ro, Gwanak-gu , Seoul 08826 , South Korea .
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12
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Sousa E Silva FC, Van NT, Wengryniuk SE. Direct C-H α-Arylation of Enones with ArI(O 2CR) 2 Reagents. J Am Chem Soc 2019; 142:64-69. [PMID: 31841623 DOI: 10.1021/jacs.9b11282] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
α-Arylation of α,β-unsaturated ketones constitutes a powerful synthetic transformation. It is most commonly achieved via cross-coupling of α-haloenones, but this stepwise strategy requires prefunctionalized substrates and expensive catalysts. Direct enone C-H α-arylation would offer an atom- and step-economical alternative, but such reports are scarce. Herein we report the metal-free direct C-H arylation of enones mediated by hypervalent iodine reagents. The reaction proceeds via a reductive iodonium Claisen rearrangement of in situ-generated β-pyridinium silyl enol ethers. The aryl groups are derived from ArI(O2CCF3)2 reagents, which are readily accessed from the parent iodoarenes. The reaction is tolerant of a wide range of substitution patterns, and the incorporated arenes maintain the valuable iodine functional handle. Mechanistic investigations implicate arylation via an umpoled "enolonium" species and show that the presence of a β-pyridinium moiety is critical for the desired C-C bond formation.
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Affiliation(s)
- Felipe Cesar Sousa E Silva
- Department of Chemistry , Temple University , 1901 North 13th Street , Philadelphia , Pennsylvania 19122 , United States
| | - Nguyen T Van
- Department of Chemistry , Temple University , 1901 North 13th Street , Philadelphia , Pennsylvania 19122 , United States
| | - Sarah E Wengryniuk
- Department of Chemistry , Temple University , 1901 North 13th Street , Philadelphia , Pennsylvania 19122 , United States
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13
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Idzik TJ, Borzyszkowska-Ledwig A, Struk Ł, Sośnicki JG. Magnesiate-Utilized/Benzyne-Mediated Approach to Indenopyridones from 2-Pyridones: An Attempt To Synthesize the Indenopyridine Core of Haouamine. Org Lett 2019; 21:9667-9671. [PMID: 31746620 DOI: 10.1021/acs.orglett.9b03806] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient, short-staged synthesis of cis-fused indeno[2,1-b]- and indeno[1,2-c]pyridin-2-ones, starting from 2-pyridones, using magnesiates of type R3MgLi as nucleophilic and deprotonation agents, mediated by benzyne generated in situ, under optimized conditions, is described. Following the developed protocol, rare C4a-arylsubstituted indeno[2,1-b]pyridones, resembling the core of haouamine, were obtained. The protocol offering the one-pot synthesis directly from 2-pyridone is also described.
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Affiliation(s)
- Tomasz J Idzik
- West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , Al. Piastów 42 , Szczecin , 71-065 , Poland
| | - Aleksandra Borzyszkowska-Ledwig
- West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , Al. Piastów 42 , Szczecin , 71-065 , Poland
| | - Łukasz Struk
- West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , Al. Piastów 42 , Szczecin , 71-065 , Poland
| | - Jacek G Sośnicki
- West Pomeranian University of Technology , Szczecin, Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , Al. Piastów 42 , Szczecin , 71-065 , Poland
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14
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Zhang L, Wu C, Jung K, Ng YH, Boyer C. An Oxygen Paradox: Catalytic Use of Oxygen in Radical Photopolymerization. Angew Chem Int Ed Engl 2019; 58:16811-16814. [PMID: 31478286 DOI: 10.1002/anie.201909014] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/14/2019] [Indexed: 12/28/2022]
Abstract
A peculiar radical polymerization reaction is presented in which oxygen serves as a cocatalyst, alongside triethylamine, to provide activation with light in the far-red (690 nm, 3 mW cm-2 ) of the PET-RAFT process in the presence of zinc(II) (2,3,7,8,12,13,17,18-octaethyl-5,10,15,20-tetraphenylporphyrin) as photocatalyst. Apart from the ability to exert temporal control by switching the light on or off, this system possesses the exciting capability of inducing temporal control by removal or reintroduction of oxygen. Furthermore, this multicomponent catalytic system was typified by controlled polymerizations of various acrylate and acrylamide monomers, which all resulted in well-defined polymers with low dispersity (<1.2). The process displayed excellent living characteristics that were demonstrated through chain extensions and a range of degrees of polymerization (200-1600).
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Affiliation(s)
- Liwen Zhang
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Chenyu Wu
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Kenward Jung
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yun Hau Ng
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design, Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
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15
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Zhang L, Wu C, Jung K, Ng YH, Boyer C. An Oxygen Paradox: Catalytic Use of Oxygen in Radical Photopolymerization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Liwen Zhang
- Centre for Advanced Macromolecular Design Australian Centre for NanoMedicine School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - Chenyu Wu
- Centre for Advanced Macromolecular Design Australian Centre for NanoMedicine School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - Kenward Jung
- Centre for Advanced Macromolecular Design Australian Centre for NanoMedicine School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - Yun Hau Ng
- School of Energy and Environment City University of Hong Kong Kowloon Hong Kong SAR
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design Australian Centre for NanoMedicine School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australia
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16
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Kogashi K, Matsuno T, Sato S, Isobe H. Narrowing Segments of Helical Carbon Nanotubes with Curved Aromatic Panels. Angew Chem Int Ed Engl 2019; 58:7385-7389. [PMID: 30938054 DOI: 10.1002/anie.201902893] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Indexed: 11/06/2022]
Abstract
Rigid molecular cylinders with a 1 nm diameter were synthesized by assembling arylene panels with Pt-mediated macrocylization. Chrysenylene panels that previously participated in tetrameric macrocyclization were contorted by the addition of two benzo groups on the sides to form dibenzochrysenylene, which allowed for a reduction in the numbers of participating panels to three. Consequently, narrowed cyclochrysenylene congeners were obtained. The narrowed chiral cylinders possessed width-dependent chiroptical properties. The magnetic transition dipole moment was dictated by the radius of a ring-current-like circle that was formed by local electric transition dipole moments on the cylinder.
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Affiliation(s)
- Kanako Kogashi
- Department of Chemistry, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
| | - Taisuke Matsuno
- Department of Chemistry, The University of Tokyo, JST, ERATO, Isobe Degenerate π-Integration Project, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Sota Sato
- Department of Chemistry, The University of Tokyo, JST, ERATO, Isobe Degenerate π-Integration Project, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hiroyuki Isobe
- Department of Chemistry, The University of Tokyo, JST, ERATO, Isobe Degenerate π-Integration Project, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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17
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Kogashi K, Matsuno T, Sato S, Isobe H. Narrowing Segments of Helical Carbon Nanotubes with Curved Aromatic Panels. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902893] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kanako Kogashi
- Department of Chemistry Tohoku University Aoba-ku Sendai 980-8578 Japan
| | - Taisuke Matsuno
- Department of Chemistry The University of Tokyo JST ERATO Isobe Degenerate π-Integration Project Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Sota Sato
- Department of Chemistry The University of Tokyo JST ERATO Isobe Degenerate π-Integration Project Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroyuki Isobe
- Department of Chemistry The University of Tokyo JST ERATO Isobe Degenerate π-Integration Project Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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18
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Cao L, Wang C, Wipf P. Grob-Type Fragmentation Releases Paracyclophane Ring Strain in a Late-Stage Precursor of Haouamine A. Org Lett 2019; 21:1538-1541. [DOI: 10.1021/acs.orglett.9b00424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liming Cao
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Chenbo Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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19
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Liu X, Liu J, Wu J, Huang G, Liang R, Chung LW, Li CC. Asymmetric Total Synthesis of Cerorubenic Acid-III. J Am Chem Soc 2019; 141:2872-2877. [PMID: 30721058 DOI: 10.1021/jacs.8b12647] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The first asymmetric total synthesis of the highly strained compound cerorubenic acid-III is reported. A type II intramolecular [5 + 2] cycloaddition allowed efficient and diastereoselective construction of the synthetically challenging bicyclo[4.4.1] ring system with a strained bridgehead (anti-Bredt) double bond in the final product. A unique transannular cyclization installed the vinylcyclopropane moiety with retention of the desired stereochemistry.
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Affiliation(s)
- Xin Liu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Institute of Chinese Medical Sciences , University of Macau , Macau , China
| | - Junyang Liu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Academy for Advanced Interdisciplinary Studies , Southern University of Science and Technology (SUSTech) , Shenzhen 518055 , China
| | - Jianlei Wu
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Guocheng Huang
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Rong Liang
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Lung Wa Chung
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
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20
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Kawai K, Bunno Y, Yoshino T, Matsunaga S. Weinreb Amide Directed Versatile C-H Bond Functionalization under (η 5 -Pentamethylcyclopentadienyl)cobalt(III) Catalysis. Chemistry 2018; 24:10231-10237. [PMID: 29732683 DOI: 10.1002/chem.201801750] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Indexed: 01/24/2023]
Abstract
The (η5 -pentamethylcyclopentadienyl)cobalt(III) (Cp*CoIII )-catalyzed C-H bond functionalization of aromatic, heteroaromatic, and α,β-unsaturated Weinreb amides was explored. C-H allylation reactions with the use of allyl carbonate and a perfluoroalkene, oxidative alkenylation reactions with the use of ethyl acrylate, iodination reactions with the use of N-iodosuccinimide, and amidation reactions with the use of dioxazolones were catalyzed by Cp*Co(CO)I2 in the presence of a cationic Ag salt and AgOAc to afford various synthetically useful building blocks. Mechanistic studies of the C-H allylation disclosed that the C-H activation step was rate determining and virtually irreversible.
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Affiliation(s)
- Kentaro Kawai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Youka Bunno
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
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21
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Liu J, Krajangsri S, Singh T, De Seriis G, Chumnanvej N, Wu H, Andersson PG. Regioselective Iridium-Catalyzed Asymmetric Monohydrogenation of 1,4-Dienes. J Am Chem Soc 2017; 139:14470-14475. [DOI: 10.1021/jacs.7b06829] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jianguo Liu
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Suppachai Krajangsri
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Thishana Singh
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Giulia De Seriis
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Napasawan Chumnanvej
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Haibo Wu
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
| | - Pher G. Andersson
- Department of Organic Chemistry, Stockholm University, Arrhenius-laboratory, 10691, Stockholm, Sweden
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22
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α-Amino acids with electrically charged and polar uncharged side chains as chiral synthon: Application to the synthesis of bioactive alkaloids (1996-Dec, 2013). Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Hu P, Snyder SA. Enantiospecific Total Synthesis of the Highly Strained (−)-Presilphiperfolan-8-ol via a Pd-Catalyzed Tandem Cyclization. J Am Chem Soc 2017; 139:5007-5010. [DOI: 10.1021/jacs.7b01454] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Pengfei Hu
- Department
of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, Florida 33458, United States
- Department
of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Scott A. Snyder
- Department
of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, Florida 33458, United States
- Department
of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
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24
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Hao HD, Trauner D. Furans as Versatile Synthons: Total Syntheses of Caribenol A and Caribenol B. J Am Chem Soc 2017; 139:4117-4122. [DOI: 10.1021/jacs.7b00234] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hong-Dong Hao
- Department of Chemistry and Center for
Integrated Protein Science, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
| | - Dirk Trauner
- Department of Chemistry and Center for
Integrated Protein Science, Ludwig-Maximilians-Universität München, Butenandtstrasse
5-13, 81377 München, Germany
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25
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Guo YA, Zhao M, Xu Z, Ye T. Total Synthesis and Stereochemical Assignment of Actinoranone. Chemistry 2017; 23:3572-3576. [DOI: 10.1002/chem.201700476] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Yi-an Guo
- Key Laboratory of Chemical Genomics; Engineering Laboratory for Chiral Drug Synthesis; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Xili, Nanshan District Shenzhen 518055 China
| | - Meng Zhao
- Key Laboratory of Chemical Genomics; Engineering Laboratory for Chiral Drug Synthesis; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Xili, Nanshan District Shenzhen 518055 China
| | - Zhengshuang Xu
- Key Laboratory of Chemical Genomics; Engineering Laboratory for Chiral Drug Synthesis; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Xili, Nanshan District Shenzhen 518055 China
| | - Tao Ye
- Key Laboratory of Chemical Genomics; Engineering Laboratory for Chiral Drug Synthesis; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Xili, Nanshan District Shenzhen 518055 China
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26
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He Y, Wang F, Zhang X, Fan X. C(sp3)–H dehydrogenation and C(sp2)–H alkoxy carbonylation of inactivated cyclic amines towards functionalized N-heterocycles. Chem Commun (Camb) 2017; 53:4002-4005. [DOI: 10.1039/c6cc10227a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel and efficient synthesis of tetrahydropyridine-, dihydropyrrole-, and tetrahydroazepine-3-carboxylates via cascade reactions of cyclic amines with CO and alcohols is presented. To our knowledge, this should be the first example in which functionalized N-heterocycles were prepared through Pd-catalyzed C(sp3)–H dehydrogenation and C(sp2)–H carbonylation of cyclic amines.
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Affiliation(s)
- Yan He
- School of Chemistry and Chemical Engineering
- School of Environment
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Henan Normal University
| | - Fang Wang
- School of Chemistry and Chemical Engineering
- School of Environment
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Henan Normal University
| | - Xinying Zhang
- School of Chemistry and Chemical Engineering
- School of Environment
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Henan Normal University
| | - Xuesen Fan
- School of Chemistry and Chemical Engineering
- School of Environment
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Henan Normal University
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27
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Ren Z, Hao Y, Hu X. Total Synthesis and Structural Reassignment of (±)-Cereoanhydride. Org Lett 2016; 18:4958-4961. [DOI: 10.1021/acs.orglett.6b02424] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiqiang Ren
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi’an 710127, China
| | - Yu Hao
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi’an 710127, China
| | - Xiangdong Hu
- Department of Chemistry & Material Science, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China, Northwest University, Xi’an 710127, China
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28
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Paek SM, Jeong M, Jo J, Heo YM, Han YT, Yun H. Recent Advances in Substrate-Controlled Asymmetric Induction Derived from Chiral Pool α-Amino Acids for Natural Product Synthesis. Molecules 2016; 21:E951. [PMID: 27455209 PMCID: PMC6274556 DOI: 10.3390/molecules21070951] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/07/2016] [Accepted: 07/18/2016] [Indexed: 11/20/2022] Open
Abstract
Chiral pool α-amino acids have been used as powerful tools for the total synthesis of structurally diverse natural products. Some common naturally occurring α-amino acids are readily available in both enantiomerically pure forms. The applications of the chiral pool in asymmetric synthesis can be categorized prudently as chiral sources, devices, and inducers. This review specifically examines recent advances in substrate-controlled asymmetric reactions induced by the chirality of α-amino acid templates in natural product synthesis research and related areas.
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Affiliation(s)
- Seung-Mann Paek
- College of Pharmacy, Research Institute of Pharmaceutical Science, Gyeongsang National University, Jinju daero, Jinju 52828, Korea.
| | - Myeonggyo Jeong
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Jeyun Jo
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Yu Mi Heo
- College of Pharmacy, Research Institute of Pharmaceutical Science, Gyeongsang National University, Jinju daero, Jinju 52828, Korea.
| | - Young Taek Han
- College of Pharmacy, Dankook University, Cheonan 31116, Korea.
| | - Hwayoung Yun
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
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29
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Abstract
This review covers the literature published in 2014 for marine natural products (MNPs), with 1116 citations (753 for the period January to December 2014) 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 (1378 in 456 papers for 2014), together with the relevant biological activities, source organisms and country of origin. Reviews, 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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Rinkel J, Dickschat JS. Recent highlights in biosynthesis research using stable isotopes. Beilstein J Org Chem 2015; 11:2493-508. [PMID: 26734097 PMCID: PMC4685789 DOI: 10.3762/bjoc.11.271] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/23/2015] [Indexed: 02/03/2023] Open
Abstract
The long and successful history of isotopic labeling experiments within natural products research has both changed and deepened our understanding of biosynthesis. As demonstrated in this article, the usage of isotopes is not at all old-fashioned, but continues to give important insights into biosynthetic pathways of secondary metabolites. This review with 85 cited references is structured by separate discussions of compounds from different classes including polyketides, non-ribosomal peptides, their hybrids, terpenoids, and aromatic compounds formed via the shikimate pathway. The text does not aim at a comprehensive overview, but instead a selection of recent important examples of isotope usage within biosynthetic studies is presented, with a special emphasis on mechanistic surprises.
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Affiliation(s)
- Jan Rinkel
- Kekulé-Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Jeroen S Dickschat
- Kekulé-Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
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31
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Alonso P, Pardo P, Galván A, Fañanás FJ, Rodríguez F. Synthesis of Cyclic Alkenyl Triflates by a Cationic Cyclization Reaction and its Application in Biomimetic Polycyclizations and Synthesis of Terpenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Alonso P, Pardo P, Galván A, Fañanás FJ, Rodríguez F. Synthesis of Cyclic Alkenyl Triflates by a Cationic Cyclization Reaction and its Application in Biomimetic Polycyclizations and Synthesis of Terpenes. Angew Chem Int Ed Engl 2015; 54:15506-10. [DOI: 10.1002/anie.201508077] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/16/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Pedro Alonso
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Pilar Pardo
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Alicia Galván
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Francisco J. Fañanás
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
| | - Félix Rodríguez
- Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8; 33006 Oviedo (Spain)
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33
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Ear A, Amand S, Blanchard F, Blond A, Dubost L, Buisson D, Nay B. Direct biosynthetic cyclization of a distorted paracyclophane highlighted by double isotopic labelling of l-tyrosine. Org Biomol Chem 2015; 13:3662-6. [DOI: 10.1039/c5ob00114e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The biosynthesis of pyrrocidines was investigated using a double (18O,13C) labelling of l-tyrosine. It shows that the phenolic 18O is incorporated during aryl ether bond formation.
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Affiliation(s)
- Alexandre Ear
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
| | - Séverine Amand
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
| | - Florent Blanchard
- Institut de Chimie des Substances Naturelles (ICSN
- CNRS)
- 91198 Gif-sur-Yvette Cedex
- France
| | - Alain Blond
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
| | - Lionel Dubost
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
| | - Didier Buisson
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
| | - Bastien Nay
- Muséum National d'Histoire Naturelle and Centre National de la Recherche Scientifique (joint unit UMR 7245 CNRS-MNHN)
- 75005 Paris
- France
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34
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Momoi Y, Okuyama KI, Toya H, Sugimoto K, Okano K, Tokuyama H. Total Synthesis of (−)-Haouamine B Pentaacetate and Structural Revision of Haouamine B. Angew Chem Int Ed Engl 2014; 53:13215-9. [DOI: 10.1002/anie.201407686] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Indexed: 11/06/2022]
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35
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Momoi Y, Okuyama KI, Toya H, Sugimoto K, Okano K, Tokuyama H. Total Synthesis of (−)-Haouamine B Pentaacetate and Structural Revision of Haouamine B. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407686] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Robinson JR, Fan X, Yadav J, Carroll PJ, Wooten AJ, Pericàs MA, Schelter EJ, Walsh PJ. Air- and Water-Tolerant Rare Earth Guanidinium BINOLate Complexes as Practical Precatalysts in Multifunctional Asymmetric Catalysis. J Am Chem Soc 2014; 136:8034-41. [DOI: 10.1021/ja502568g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jerome R. Robinson
- P.
Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Xinyuan Fan
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Jagjit Yadav
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Patrick J. Carroll
- P.
Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Alfred J. Wooten
- P.
Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Miquel A. Pericàs
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Orgànica, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| | - Eric J. Schelter
- P.
Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J. Walsh
- P.
Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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37
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Abstract
This review covers the literature published in 2012 for marine natural products, with 1035 citations (673 for the period January to December 2012) 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 (1241 for 2012), 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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38
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Rosset IG, Burtoloso ACB. Preparation of Z-α,β-Unsaturated Diazoketones from Aldehydes. Application in the Construction of Substituted Dihydropyridin-3-ones. J Org Chem 2013; 78:9464-70. [DOI: 10.1021/jo401191s] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Isac G. Rosset
- Instituto de Química
de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brazil
| | - Antonio C. B. Burtoloso
- Instituto de Química
de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brazil
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39
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Jia ZJ, Jiang K, Zhou QQ, Dong L, Chen YC. Amine–N-heterocyclic carbene cascade catalysis for the asymmetric synthesis of fused indane derivatives with multiple chiral centres. Chem Commun (Camb) 2013; 49:5892-4. [DOI: 10.1039/c3cc42823k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Gulder T, Baran PS. Strained cyclophane natural products: Macrocyclization at its limits. Nat Prod Rep 2012; 29:899-934. [DOI: 10.1039/c2np20034a] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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41
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Jiang X, Shi L, Liu H, Khan AH, Chen JS. Gas extrusion in natural products total synthesis. Org Biomol Chem 2012; 10:8383-92. [DOI: 10.1039/c2ob26152a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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