1
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Pan Q, Wang K, Xu W, Ai Y, Ping Y, Liu C, Wang M, Zhang J, Kong W. Ligand-Controlled, Nickel-Catalyzed Stereodivergent Construction of 1,3-Nonadjacent Stereocenters. J Am Chem Soc 2024; 146:15453-15463. [PMID: 38795043 DOI: 10.1021/jacs.4c03745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2024]
Abstract
In contrast to the asymmetric synthesis of molecules with a single stereocenter or 1,2-adjacent stereocenters, the simultaneous construction of acyclic 1,3-nonadjacent stereocenters via a single catalyst in an enantioselective and diastereoselective manner remains a formidable challenge. Here, we demonstrate the enantioselective and diastereodivergent construction of 1,3-nonadjacent stereocenters through Ni-catalyzed reductive cyclization/cross-coupling of alkene-tethered aryl bromides and α-bromoamides, which represents the major remaining stereochemical challenge of cyclization/difunctionalization of alkenes. Using Ming-Phos as ligand, a diverse set of oxindoles containing 1,3-nonadjacent stereocenters were obtained with high levels of enantio- and diastereoselectivity. Mechanistic experiments and density functional theory calculations indicate that magnesium salt plays a key role in controlling the diastereoselectivity. Furthermore, another set of complementary stereoisomeric products were constructed from the same set of starting materials using Ph-Phox as ligand.
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Affiliation(s)
- Qi Pan
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Kuai Wang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Weipeng Xu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yuqi Ai
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yuanyuan Ping
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Chuhan Liu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Wangqing Kong
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
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2
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Dou PH, Fu XH, Chen Y, Ge ZZ, Zhou MQ, Wang ZH, You Y, Yang L, Zhang YP, Zhao JQ, Yuan WC. Palladium-Catalyzed Asymmetric Decarboxylation of 5-Vinyloxazolidine-2,4-Diones Triggering the Dearomatization of Electron-Deficient Indoles for the Synthesis of Chiral Highly Functionalized Pyrroloindolines. Org Lett 2024; 26:3310-3315. [PMID: 38587335 DOI: 10.1021/acs.orglett.4c01003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
A catalyst system consisting of a chiral phosphoramidite ligand and Pd2(dba)3·CHCl3 causes the decarboxylation of 5-vinyloxazolidine-2,4-diones to generate amide-containing aza-π-allylpalladium 1,3-dipole intermediates, which are capable of triggering the dearomatization of 3-nitroindoles for diastereo- and enantioselective [3+2] cycloaddition, leading to the formation of a series of highly functionalized pyrroloindolines containing three contiguous stereogenic centers with excellent results (up to 99% yield, 88:12 dr, and 96% ee).
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Affiliation(s)
- Pei-Hao Dou
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Hui Fu
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Chen
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen-Zhen Ge
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen-Hua Wang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Lei Yang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yan-Ping Zhang
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jian-Qiang Zhao
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Wei-Cheng Yuan
- Innovation Research Center of Chiral Drugs, Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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3
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Scott TZ, Armelin VF, Movassaghi M. Total Synthesis and Stereochemical Assignment of (-)-Psychotridine. Org Lett 2022; 24:2160-2164. [PMID: 35297255 PMCID: PMC9204752 DOI: 10.1021/acs.orglett.2c00448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the first enantioselective total synthesis and stereochemical assignment of (-)-psychotridine. The application of our diazene-directed assembly of enantiomerically enriched cyclotryptamines afforded a highly convergent synthesis of the pentameric alkaloid, allowing its detailed structural assignment. Highlights of the synthesis include the introduction of four quaternary stereocenters with complete stereochemical control in a single step via the photoextrusion of three molecules of dinitrogen from an advanced intermediate and metal-catalyzed C-H amination reactions in challenging settings.
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4
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Ma Z, Zhou A, Xia C. Strategies for total synthesis of bispyrrolidinoindoline alkaloids. Nat Prod Rep 2022; 39:1015-1044. [PMID: 35297915 DOI: 10.1039/d1np00060h] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Covering up to 2021Complex cyclotryptamine alkaloids with a bispyrrolidino[2,3-b]indoline (BPI) skeleton are an intriguing family of natural products, exhibiting wide systematic occurrences, large structural diversity, and multiple biological activities. Based on their structural characteristics, BPI alkaloids can be classified into chimonanthine-type BPI alkaloids, BPI diketopiperazines, and BPI epipolythiodiketopiperazines. These intricate molecules have captivated great attention soon after their isolation and identification in the 1960s. Due to the structural complexity, the total synthesis of these cyclotryptamine alkaloids is challenging. Nevertheless, remarkable progress has been achieved in the last six decades; in particular, several methods have been successfully established for the construction of vicinal all-carbon quaternary stereocenters. In this review, the structural diversity and chemical synthesis of these BPI alkaloids were summarized. BPI alkaloids are mainly synthesized by the methods of oxidative dimerization, reductive dimerization, and alkylation of bisoxindole. The purpose of this review is to present overall strategies for assembling the BPI skeleton and efforts towards controlling the stereocenters.
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Affiliation(s)
- Zhixian Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, and Yunnan University Library, Yunnan University, Kunming 650091, China.
| | - Ankun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, and Yunnan University Library, Yunnan University, Kunming 650091, China.
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, and Yunnan University Library, Yunnan University, Kunming 650091, China.
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5
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Yan J, Zhou Z, He Q, Chen G, Wei H, Xie W. The applications of catalytic asymmetric halocyclization in natural product synthesis. Org Chem Front 2022. [DOI: 10.1039/d1qo01395e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Catalytic asymmetric halocyclization of olefinic substrate has evolved rapidly and been well utilized as a practical strategy for constructing enantioenriched cyclic skeletons in natural product synthesis.
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Affiliation(s)
- Jiahang Yan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Zhiqiang Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Qiaoqiao He
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Guzhou Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
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6
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Li Y, Jie J, Xiao W, Yang H, Fu H. Palladium-catalyzed [3 + 3] annulations of 1-alkyl-indolin-2-imines and dialkyl (2-methylenepropane-1,3-diyl) dicarbonates. Org Chem Front 2022. [DOI: 10.1039/d2qo00318j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed [3 + 3] annulations of 1-alkyl-indolin-2-imines and dialkyl (2-methylenepropane-1,3-diyl) dicarbonates leading to pyrido[2,3-b]indole derivatives have been developed for the first time.
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Affiliation(s)
- Yuming Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jiyang Jie
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Weixin Xiao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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7
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Jiang K, Li SJ, Liu QP, Yu N, Li YL, Zhou YQ, He KC, Lin J, Zheng TY, Lang J, Lan Y, Wei Y. Iminyl radical-triggered relay annulation for the construction of bridged aza-tetracycles bearing four contiguous stereogenic centers. Chem Sci 2022; 13:7283-7288. [PMID: 35799821 PMCID: PMC9214848 DOI: 10.1039/d2sc01548j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
Bridged tetracyclic nitrogen scaffolds are found in numerous biologically active molecules and medicinally relevant structures. Traditional methods usually require tedious reaction steps, and/or the use of structurally specific starting materials. We report an unprecedented, iminyl radical-triggered relay annulation from oxime-derived peresters and azadienes, which shows good substrate scope and functional group compatibility, and can deliver various bridged aza-tetracyclic compounds with complex molecular topology and four contiguous stereogenic centers (dr > 19 : 1) in a single operation. This transformation represents the first example of trifunctionalization of iminyl radicals through simultaneous formation of one C–N and two C–C bonds. DFT calculation studies were conducted to obtain an in-depth insight into the reaction pathways, which revealed that the reactions involved an interesting 1,6-hydrogen atom transfer process. A novel radical relay annulation is realized for the construction of various bridged aza-tetracyclic compounds with complex molecular topology and four contiguous stereogenic centers (dr > 19 : 1) in a single operation.![]()
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Affiliation(s)
- Kun Jiang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Shi-Jun Li
- College of Chemistry, Institute of Green Catalysis, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Qing-Peng Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ning Yu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yu-Lin Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yu-Qiang Zhou
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Kui-Cheng He
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jing Lin
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Ting-Yu Zheng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Jian Lang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yu Lan
- College of Chemistry, Institute of Green Catalysis, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Ye Wei
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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8
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Li P, Yang F, Hu G, Zhang X. Palladium-Catalyzed One-Pot Synthesis of Pyrroloindolines from 2-Alkynyl Arylazides and Thioacetamides. J Org Chem 2021; 86:10360-10367. [PMID: 34281342 DOI: 10.1021/acs.joc.1c01058] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel and efficient synthetic method for the preparation of various pyrroloindolines from 2-alkynyl arylazides and thioacetamides was developed. The reaction was carried out in a one-pot process under mild reaction conditions to afford the products in moderate to good yields, which has the potential to be used in organic synthesis.
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Affiliation(s)
- Ping Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Fan Yang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Guiwen Hu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Xiaoxiang Zhang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
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9
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Pan Q, Ping Y, Wang Y, Guo Y, Kong W. Ni-Catalyzed Ligand-Controlled Regiodivergent Reductive Dicarbofunctionalization of Alkenes. J Am Chem Soc 2021; 143:10282-10291. [PMID: 34162201 DOI: 10.1021/jacs.1c03827] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Transition-metal-catalyzed dicarbofunctionalization of alkenes involving intramolecular Heck cyclization followed by intermolecular cross-coupling has emerged as a powerful engine for building heterocycles with sterically congested quaternary carbon centers. However, only exo-cyclization/cross-coupling products can be obtained; endo-selective cyclization/cross-coupling has not been reported yet and still poses a formidable challenge. We herein report the first example of catalyst-controlled dicarbofunctionalization of alkenes for the regiodivergent synthesis of five- and six-membered benzo-fused lactams bearing all-carbon quaternary centers. Using a chiral Pyrox- or Phox-type bidentate ligand, 5-exo cyclization/cross-couplings proceed favorably to produce indole-2-ones in good yields with excellent regioselectivity and enantioselectivities (up to 98% ee). When C6-carboxylic acid-modified 2,2'-bipyridine was used as the ligand, 3,4-dihydroquinolin-2-ones were obtained in good yields through 6-endo-selective cyclization/cross-coupling processes. This transformation is modular and tolerant of a variety of functional groups. The ligand rather than the substrate structures precisely dictates the regioselectivity pattern. Moreover, the synthetic value of this regiodivergent protocol was demonstrated by the preparation of biologically relevant molecules and structural scaffolds.
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Affiliation(s)
- Qi Pan
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People's Republic of China
| | - Yuanyuan Ping
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People's Republic of China
| | - Yifan Wang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People's Republic of China
| | - Ya Guo
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People's Republic of China
| | - Wangqing Kong
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan 430072, People's Republic of China
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10
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Gao B, Yao F, Zhang Z, Ding H. Total Synthesis of (+)-Alsmaphorazine C and Formal Synthesis of (+)-Strictamine: A Photo-Fries Approach. Angew Chem Int Ed Engl 2021; 60:10603-10607. [PMID: 33660898 DOI: 10.1002/anie.202101752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 01/04/2023]
Abstract
A bioinspired photo-Fries/imine capture cascade reaction was developed in continuous-flow mode, which facilitated the rapid construction of a series of diversely functionalized 2,7-heterocycle-fused tetrahydrocarbazoles, the ubiquitous core structures embedded in strychnos and akuammiline-type monoterpene indole alkaloids. The synthetic utility of this novel method has been preliminarily explored by the first total synthesis of (+)-alsmaphorazine C and formal synthesis of (+)-strictamine in a concise and efficient manner.
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Affiliation(s)
- Beiling Gao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Fengjie Yao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhaodong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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11
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Gao B, Yao F, Zhang Z, Ding H. Total Synthesis of (+)‐Alsmaphorazine C and Formal Synthesis of (+)‐Strictamine: A Photo‐Fries Approach. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Beiling Gao
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Fengjie Yao
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Zhaodong Zhang
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Hanfeng Ding
- Department of Chemistry Zhejiang University Hangzhou 310058 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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12
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Xu J, Li R, Xu N, Liu X, Wang F, Feng X. Enantioselective [4 + 2] Cycloaddition/Cyclization Cascade Reaction and Total Synthesis of cis-Bis(cyclotryptamine) Alkaloids. Org Lett 2021; 23:1856-1861. [PMID: 33621106 DOI: 10.1021/acs.orglett.1c00260] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The asymmetric catalytic synthesis of 3-cyclotryptamine substituted oxindoles through formal [4 + 2] cycloaddition/cyclization cascade is described. A wide range of cyclotryptamine derivatives were obtained in enantioenriched form under mild reaction conditions and were found to have potential anticancer activity. The strategy enables ready assembly of cyclotryptamine subunits at the C3a-C3a' positions with two quaternary stereogenic centers in cis-selectivity, leading to the concise synthesis of optically active cis-bis(hexahydropyrroloindole) and others of the cyclotryptamine alkaloid family.
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Affiliation(s)
- Jian Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Runze Li
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Nian Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Fei Wang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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13
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Metal-free iodic acid-triggered cascade cyclization of alkenes with N-hydroxyphthalimide: A simple and mild access to aminooxylated 3,3-disubstituted 2-oxindoles. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Gillaizeau-Simonian N, Barde E, Guérinot A, Cossy J. Cobalt-Catalyzed 1,4-Aryl Migration/Desulfonylation Cascade: Synthesis of α-Aryl Amides. Chemistry 2021; 27:4004-4008. [PMID: 33296109 DOI: 10.1002/chem.202005129] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Indexed: 11/06/2022]
Abstract
A cobalt-catalyzed 1,4-aryl migration/disulfonylation cascade applied to α-bromo N-sulfonyl amides was developed. The reaction was highly chemoselective, allowing the preparation of α-aryl amides possessing a variety of functional groups. The method was used as the key step to synthesize an alkaloid, (±)-deoxyeseroline. Mechanistic investigations suggest a radical process.
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Affiliation(s)
- Nicolas Gillaizeau-Simonian
- Molecular, Macromolecular Chemistry and Materials-UMR 7167 ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, 75231, Paris Cedex 05, France
| | - Etienne Barde
- Molecular, Macromolecular Chemistry and Materials-UMR 7167 ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, 75231, Paris Cedex 05, France
| | - Amandine Guérinot
- Molecular, Macromolecular Chemistry and Materials-UMR 7167 ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, 75231, Paris Cedex 05, France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry and Materials-UMR 7167 ESPCI Paris, CNRS, PSL Research University, 10 rue Vauquelin, 75231, Paris Cedex 05, France
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15
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Wang R, Xu L, Lu Y, Jiang B, Hao W. Sc(OTf) 3-Catalyzed Dearomatization of Indoles for the Synthesis of 3,3'-Bisindoles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Huang XL, Cheng YZ, Zhang X, You SL. Photoredox-Catalyzed Intermolecular Hydroalkylative Dearomatization of Electron-Deficient Indole Derivatives. Org Lett 2020; 22:9699-9705. [DOI: 10.1021/acs.orglett.0c03759] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xu-Lun Huang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Yuan-Zheng Cheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiao Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- Fujian Key Laboratory of Polymer Science, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Lu, Fuzhou 350007, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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17
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Shende VV, Khatri Y, Newmister SA, Sanders JN, Lindovska P, Yu F, Doyon TJ, Kim J, Houk KN, Movassaghi M, Sherman DH. Structure and Function of NzeB, a Versatile C-C and C-N Bond-Forming Diketopiperazine Dimerase. J Am Chem Soc 2020; 142:17413-17424. [PMID: 32786740 DOI: 10.1021/jacs.0c06312] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dimeric diketopiperazine (DKPs) alkaloids are a diverse family of natural products (NPs) whose unique structural architectures and biological activities have inspired the development of new synthetic methodologies to access these molecules. However, catalyst-controlled methods that enable the selective formation of constitutional and stereoisomeric dimers from a single monomer are lacking. To resolve this long-standing synthetic challenge, we sought to characterize the biosynthetic enzymes that assemble these NPs for application in biocatalytic syntheses. Genome mining enabled identification of the cytochrome P450, NzeB (Streptomyces sp. NRRL F-5053), which catalyzes both intermolecular carbon-carbon (C-C) and carbon-nitrogen (C-N) bond formation. To identify the molecular basis for the flexible site-selectivity, stereoselectivity, and chemoselectivity of NzeB, we obtained high-resolution crystal structures (1.5 Å) of the protein in complex with native and non-native substrates. This, to our knowledge, represents the first crystal structure of an oxidase catalyzing direct, intermolecular C-H amination. Site-directed mutagenesis was utilized to assess the role individual active-site residues play in guiding selective DKP dimerization. Finally, computational approaches were employed to evaluate plausible mechanisms regarding NzeB function and its ability to catalyze both C-C and C-N bond formation. These results provide a structural and computational rationale for the catalytic versatility of NzeB, as well as new insights into variables that control selectivity of CYP450 diketopiperazine dimerases.
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Affiliation(s)
| | | | | | - Jacob N Sanders
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Petra Lindovska
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | | | | | - Justin Kim
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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18
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Yuan WC, Zhou XJ, Zhao JQ, Chen YZ, You Y, Wang ZH. Catalytic Enantioselective Dearomatization/Rearomatization of 2-Nitroindoles to Access 3-Indolyl-3′-Aryl-/Alkyloxindoles: Application in the Formal Synthesis of Cyclotryptamine Alkaloids. Org Lett 2020; 22:7088-7093. [DOI: 10.1021/acs.orglett.0c02350] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Xiao-Jian Zhou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563006, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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19
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Shao W, Xu‐Xu Q, You S. Highly Diastereoselective Synthesis of Polycyclic Indolines through Formal [4+2] Propargylic Cycloaddition of Indoles with Ethynyl Benzoxazinanones. Chem Asian J 2020; 15:2462-2466. [DOI: 10.1002/asia.202000640] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/22/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Wen Shao
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qing‐Feng Xu‐Xu
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Shu‐Li You
- State Key Laboratory of Organometallic ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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20
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Roy A, Maity A, Giri R, Bisai A. Efficient Alkynylation of 2‐Oxindoles with Alkynyl Dibenzothiophenium Triflates: Total Synthesis of (±)‐Deoxyeseroline. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Avishek Roy
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Arindam Maity
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Rahul Giri
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Alakesh Bisai
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 Madhya Pradesh India
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur, Haringhata Kalyani, Nadia 741 246 West Bengal India
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21
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Kang Z, Zhang D, Xu X, Hu W. Privilege-Structure-Oriented Three-Component Asymmetric Aminomethylation: Assembly of Chiral 3-Aminomethyl Indolones. Org Lett 2019; 21:9878-9883. [PMID: 31793792 DOI: 10.1021/acs.orglett.9b03787] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The asymmetric aminomethylation reaction of 3-diazooxindoles with electronic-rich arenes and N,O-acetals cooperatively catalyzed by achiral dirhodium complex and chiral phosphoric acid is reported. The reaction provides a novel method for the facile synthesis of chiral 3-aminomethyl oxindoles with an all-carbon quaternary center in good yields (82-98%) with high to excellent enantioselectivities (up to 97% ee). The transformation proceeds through a convergent addition of a reactive zwitterionic intermediate with a chiral methylene iminium generated in situ via asymmetric counteranion-directed catalysis (ACDC). This work represents the first asymmetric aminomethylation method of mixed 3,3'-bisindoles with structural diversity.
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Affiliation(s)
- Zhenghui Kang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Dan Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
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22
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Li Y, Guo J, Lu X, Zhong F. One-step assembly of alkoxypyrroloindolines via iodine-catalyzed alkoxycyclization of indole derivatives. Org Biomol Chem 2019; 18:32-35. [PMID: 31761916 DOI: 10.1039/c9ob02287b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report an iodine-catalyzed alkoxycyclization of tryptamine derivatives under mild reaction conditions. This method distinguished itself by providing a catalytic, one-step assembly of diversely functionalized C3a-alkoxypyrroloindolines as well as dihydrofuran and lactone fused indolines. Mechanistic studies suggest that an ionic pathway is operative and this probably accounts for the diastereospecificity of all isolated cycloadducts.
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Affiliation(s)
- Yan Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu road, Wuhan 430074, China.
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23
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Tian H, Peng F, Zhang P, Yang H, Fu H. Highly Enantioselective Iridium-Catalyzed Cascade Double Allylation Strategy: Synthesis of Pyrrolidinoindolines with an All-Carbon Quaternary Stereocenter. Org Lett 2019; 21:8501-8505. [DOI: 10.1021/acs.orglett.9b03382] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hua Tian
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fei Peng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Pengxiang Zhang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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24
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Wang X, Zeng X, Lin Q, Li M, Walsh PJ, Chruma JJ. Palladium‐Catalysed Decarboxylative Generation and Regiodivergent Prenylation of 2‐Azaallyl Anions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900491] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaoqian Wang
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry and Sino-British Materials Research Institute, College of Physical Science & Technology Sichuan University No. 29, Wangjiang Road, Chengdu Sichuan 610064 People's Republic of China
| | - Xi Zeng
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry and Sino-British Materials Research Institute, College of Physical Science & Technology Sichuan University No. 29, Wangjiang Road, Chengdu Sichuan 610064 People's Republic of China
| | - Qiao Lin
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry and Sino-British Materials Research Institute, College of Physical Science & Technology Sichuan University No. 29, Wangjiang Road, Chengdu Sichuan 610064 People's Republic of China
| | - Minyan Li
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry University of Pennsylvania 231 South 34th Street, Philadelphia Pennsylvania 19104-6323 United States
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry University of Pennsylvania 231 South 34th Street, Philadelphia Pennsylvania 19104-6323 United States
| | - Jason J. Chruma
- Key Laboratory of Green Chemistry & Technology (MOE), College of Chemistry and Sino-British Materials Research Institute, College of Physical Science & Technology Sichuan University No. 29, Wangjiang Road, Chengdu Sichuan 610064 People's Republic of China
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25
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Liu C, Yang H, Zhu C, Fu H. 1-Alkyl-3-alkylindolin-2-imine hydrochlorides as useful building blocks in the copper-catalyzed synthesis of polycyclic indoline scaffolds. RSC Adv 2019; 9:8369-8372. [PMID: 35518700 PMCID: PMC9062002 DOI: 10.1039/c9ra00995g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 03/06/2019] [Indexed: 12/26/2022] Open
Abstract
A novel and efficient copper-catalyzed synthesis of dihydro-6H-indolo[2,3-b]quinoline derivatives has been developed by using 3-alkyl-1-alkylindolin-2-imine hydrochlorides as the building blocks.
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Affiliation(s)
- Can Liu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Changjin Zhu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Hua Fu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)
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26
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MARUOKA K. Design of high-performance chiral phase-transfer catalysts with privileged structures. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2019; 95:1-16. [PMID: 30643092 PMCID: PMC6395783 DOI: 10.2183/pjab.95.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In the end of the 20th century, due to various advantages of organocatalysis including environmental friendliness, operational simplicity, mild reaction conditions, easy recovery etc., had led to its recognition as a powerful strategy for the establishment of practical organic synthetic methods. Over the two decades since then, tremendous effort has been devoted to the design of novel high-performance organocatalysts to realize unprecedented reactions including asymmetric transformations. In this review, our recent results on the rational design of various types of chiral phase-transfer catalysts with privileged structures, and their successful application to a wide variety of asymmetric transformations are described.
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Affiliation(s)
- Keiji MARUOKA
- Graduate School of Science, Kyoto University, Kyoto, Japan
- Correspondence should be addressed: K. Maruoka, Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan (e-mail: )
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27
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Shen X, Zhao J, Xi Y, Chen W, Zhou Y, Yang X, Zhang H. Enantioselective Total Synthesis of (+)-Nocardioazine B. J Org Chem 2018; 83:14507-14517. [DOI: 10.1021/acs.joc.8b02329] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xianfu Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control, Qujing Normal University, Qujing, Yunnan 655011, P.R. China
| | - Jingfeng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Yongkai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Yongyun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
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28
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Naresh Babu K, Kariyandi NR, Saheeda M. K. S, Kinthada LK, Bisai A. Lewis Acid-Catalyzed Malonate Addition onto 3-Hydroxy-2-oxindoles: Mechanistic Consideration and Synthetic Approaches to the Pyrroloindoline Alkaloids. J Org Chem 2018; 83:12664-12682. [DOI: 10.1021/acs.joc.8b02017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Naresh Babu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Nikhil Raj Kariyandi
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Saina Saheeda M. K.
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Lakshmana K. Kinthada
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
| | - Alakesh Bisai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh 462 066, India
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29
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Chen X, Fan J, Zeng G, Ma J, Wang C, Wang Y, Zhou Y, Deng X. Access to 3a-Benzoylmethyl Pyrrolidino[2,3- b]indolines via Cu II-Catalyzed Radical Annulation/C3-Functionalization Sequence. J Org Chem 2018; 83:8322-8330. [PMID: 29925228 DOI: 10.1021/acs.joc.8b01017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A CuII-catalyzed radical annulation/C3-functionalization cascade of tryptamine derivatives with aryl ethylene is reported. The mild catalytic system enables the facile construction of 3a-benzoylmethylpyrrolidino[2,3- b]indolines with excellent chemo- and regioselectivities. Remarkably, this novel method utilizes earth-abundant and inexpensive cupric salt as the catalyst and air as the co-oxidant, rendering the process highly environmentally friendly and atom economic. Presumably, the reaction proceeds through CuII-initiated formation of pyrrolidino[2,3- b]indolines radical intermediate I, which is successively trapped by aryl ethylene and O2 to form the product. An 18O2-labeling experiment and several control experiments were designed to support the mechanistic proposal.
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Affiliation(s)
- Xiaofeng Chen
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Jinbao Fan
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Guangyao Zeng
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Jinjin Ma
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Chenxi Wang
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Yajing Wang
- Hunan University of Chinese Medicine , Changsha , 410028 , Hunan , China
| | - Yingjun Zhou
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
| | - Xu Deng
- Xiangya School of Pharmaceutical Science , Central South University , Changsha 410013 , Hunan , China
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30
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Chen SK, Ma WQ, Yan ZB, Zhang FM, Wang SH, Tu YQ, Zhang XM, Tian JM. Organo-Cation Catalyzed Asymmetric Homo/Heterodialkylation of Bisoxindoles: Construction of Vicinal All-Carbon Quaternary Stereocenters and Total Synthesis of (−)-Chimonanthidine. J Am Chem Soc 2018; 140:10099-10103. [DOI: 10.1021/jacs.8b05386] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Si-Kai Chen
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Wen-Qiang Ma
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Zhi-Bo Yan
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Shao-Hua Wang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Jin-Miao Tian
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
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31
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Tayu M, Higuchi K, Kawasaki T. Functionalizations of Indoles by Intermolecular Interrupted Pummerer Reaction. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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32
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Gentry EC, Rono LJ, Hale ME, Matsuura R, Knowles RR. Enantioselective Synthesis of Pyrroloindolines via Noncovalent Stabilization of Indole Radical Cations and Applications to the Synthesis of Alkaloid Natural Products. J Am Chem Soc 2018; 140:3394-3402. [PMID: 29432006 PMCID: PMC5896747 DOI: 10.1021/jacs.7b13616] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
While interest in the synthetic chemistry of radical cations continues to grow, controlling enantioselectivity in the reactions of these intermediates remains a challenge. Based on recent insights into the oxidation of tryptophan in enzymatic systems, we report a photocatalytic method for the generation of indole radical cations as hydrogen-bonded adducts with chiral phosphate anions. These noncovalent open-shell complexes can be intercepted by the stable nitroxyl radical TEMPO· to form alkoxyamine-substituted pyrroloindolines with high levels of enantioselectivity. Further elaboration of these optically enriched adducts can be achieved via a catalytic single-electron oxidation/mesolytic cleavage sequence to furnish transient carbocation intermediates that may be intercepted by a wide range of nucleophiles. Taken together, this two-step sequence provides a simple catalytic method to access a wide range of substituted pyrroloindolines in enantioenriched form via a standard experimental protocol from a common synthetic intermediate. The design, development, mechanistic study, and scope of this process are presented, as are applications of this method to the synthesis of several dimeric pyrroloindoline natural products.
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Affiliation(s)
- Emily C. Gentry
- Department of Chemistry, Princeton University, Princeton NJ 08544, USA
| | - Lydia J. Rono
- Department of Chemistry, Princeton University, Princeton NJ 08544, USA
| | - Martina E. Hale
- Department of Chemistry, Princeton University, Princeton NJ 08544, USA
| | - Rei Matsuura
- Department of Chemistry, Princeton University, Princeton NJ 08544, USA
| | - Robert R. Knowles
- Department of Chemistry, Princeton University, Princeton NJ 08544, USA
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33
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Koleoso OK, Elsegood MRJ, Teat SJ, Kimber MC. Photoredox Approach to N-Acyl-N'-aryl-N,N'-aminals Using Enamides and Their Conversion to γ-Lactams. Org Lett 2018; 20:1003-1006. [PMID: 29373031 DOI: 10.1021/acs.orglett.7b03946] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A photoredox catalytic approach to synthetically valuable N-acyl-N'-aryl-N,N'-aminals is described. This method uses the addition of a radical precursor to enamides, with subsequent interception of the cationic iminium intermediate with an arylamine. The reaction has been shown to be compatible with electron-rich and electron-deficient arylamines, and moderate to good levels of diastereoselectivity can be attained using a chiral enamide. Furthermore, the N-acyl-N'-aryl-N,N'-aminal reaction products can be readily cyclized, providing a novel synthetic route to valuable γ-lactams.
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Affiliation(s)
- Olusesan K Koleoso
- Department of Chemistry, Loughborough University , Loughborough, Leicestershire LE11 3TU, U.K
| | - Mark R J Elsegood
- Department of Chemistry, Loughborough University , Loughborough, Leicestershire LE11 3TU, U.K
| | - Simon J Teat
- ALS, Berkeley Laboratory , 1 Cyclotron Road, MS2-400, Berkeley, California 94720, United States
| | - Marc C Kimber
- Department of Chemistry, Loughborough University , Loughborough, Leicestershire LE11 3TU, U.K
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34
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Wu K, Du Y, Wei Z, Wang T. Synthesis of functionalized pyrroloindolinesviaa visible-light-induced radical cascade reaction: rapid synthesis of (±)-flustraminol B. Chem Commun (Camb) 2018; 54:7443-7446. [DOI: 10.1039/c8cc03575j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report a visible-light-induced synthesis of functionalized pyrroloindolinesviaa radical cascade reaction,highlighting a mild nature of the reaction condition.
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Affiliation(s)
- Kui Wu
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Yuliu Du
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Zheng Wei
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
| | - Ting Wang
- Department of Chemistry
- University at Albany
- State University of New York
- Albany
- USA
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35
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Lindovska P, Movassaghi M. Concise Synthesis of (-)-Hodgkinsine, (-)-Calycosidine, (-)-Hodgkinsine B, (-)-Quadrigemine C, and (-)-Psycholeine via Convergent and Directed Modular Assembly of Cyclotryptamines. J Am Chem Soc 2017; 139:17590-17596. [PMID: 29058431 PMCID: PMC5733798 DOI: 10.1021/jacs.7b09929] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The enantioselective total synthesis of (-)-hodgkinsine, (-)-calycosidine, (-)-hodgkinsine B, (-)-quadrigemine C, and (-)-psycholeine through a diazene-directed assembly of cyclotryptamine fragments is described. Our synthetic strategy enables multiple and directed assembly of intact cyclotryptamine subunits for convergent synthesis of highly complex bis- and tris-diazene intermediates. Photoextrusion of dinitrogen from these intermediates enables completely stereoselective formation of all C3a-C3a' and C3a-C7' carbon-carbon bonds and all the associated quaternary stereogenic centers. In a representative example, photoextrusion of three dinitrogen molecules from an advanced intermediate in a single-step led to completely controlled introduction of four quaternary stereogenic centers and guided the assembly of four cyclotryptamine monomers en route to (-)-quadrigemine C. The synthesis of these complex diazenes was made possible through a new methodology for synthesis of aryl-alkyl diazenes using electronically attenuated hydrazine-nucleophiles for a silver-promoted addition to C3a-bromocyclotryptamines. The application of Rh- and Ir-catalyzed C-H amination reactions in complex settings were used to gain rapid access to C3a- and C7-functionalized cyclotryptamine monomers, respectively, used for diazene synthesis. This convergent and modular assembly of intact cyclotryptamines offers the first solution to access these alkaloids through completely stereoselective union of monomers at challenging linkages and the associated quaternary stereocenters as illustrated in our synthesis of five members of the oligocyclotryptamine family of alkaloids.
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Affiliation(s)
- Petra Lindovska
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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36
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Tayu M, Hui Y, Takeda S, Higuchi K, Saito N, Kawasaki T. Total Synthesis of (+)-Gliocladin C Based on One-Pot Construction of a 3a-(3-Indolyl)pyrroloindoline Skeleton by Sulfonium-Mediated Cross-Coupling of Tryptophan and Indole. Org Lett 2017; 19:6582-6585. [DOI: 10.1021/acs.orglett.7b03293] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Masanori Tayu
- Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | - Yi Hui
- Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | - Shiori Takeda
- Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | | | - Nozomi Saito
- Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
| | - Tomomi Kawasaki
- Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
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37
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Wu K, Du Y, Wang T. Visible-Light-Mediated Construction of Pyrroloindolines via an Amidyl Radical Cyclization/Carbon Radical Addition Cascade: Rapid Synthesis of (±)-Flustramide B. Org Lett 2017; 19:5669-5672. [DOI: 10.1021/acs.orglett.7b02837] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kui Wu
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Yuliu Du
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Ting Wang
- Department of Chemistry, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
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38
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Horibe T, Ohmura S, Ishihara K. Selenium-Iodine Cooperative Catalyst for Chlorocyclization of Tryptamine Derivatives. Org Lett 2017; 19:5525-5528. [PMID: 28956932 DOI: 10.1021/acs.orglett.7b02613] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chlorocyclization of tryptamine derivatives has been developed with the use of a diphenyl diselenide-iodine cooperative catalyst. Various tryptamine derivatives can be smoothly converted to the corresponding C3a-chlorohexahydropyrrolo[2,3-b]indoles. Additionally, we demonstrate the formal total syntheses of (-)-psychotriasine and (-)-acetylardeemin by introducing nucleophiles to the C3a position of the products.
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Affiliation(s)
- Takahiro Horibe
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Shuhei Ohmura
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
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39
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Guo J, Chen S, Liu J, Guo J, Chen W, Cai Q, Liu P, Sun P. Iodine-Catalyzed Azidation/Cyclization Cascade Approach to 3a-Azidofuroindolines and -pyrroloindolines under Mild Conditions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700618] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jiajing Guo
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Siyu Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Jingyuan Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Jialiang Guo
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Weimin Chen
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Qian Cai
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
| | - Peijun Liu
- Pharmacy School; College of Pharmacy; Zunyi Medical University; 563003 Zunyi P. R. China
| | - Pinghua Sun
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research; College of Pharmacy; Jinan University; 510632 Guangzhou P. R. China
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40
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Yang ZY, Tian T, Du YF, Li SY, Chu CC, Chen LY, Li D, Liu JY, Wang B. Direct intramolecular amination of tryptophan esters to prepare pyrrolo[2,3-b]indoles. Chem Commun (Camb) 2017; 53:8050-8053. [PMID: 28671697 DOI: 10.1039/c7cc03983b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A metal-free iodine-catalyzed intramolecular amination has been developed for the practical synthesis of pyrrolo[2,3-b]indoles from readily available tryptophan esters. The transformation has been applied to a wide array of substrates and can be performed on gram scale under very mild conditions.
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Affiliation(s)
- Zhao-Ying Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China.
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41
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Cho KH, Sohn JH, Oh H. Isolation and structure determination of a new diketopiperazine dimer from marine-derived fungus Aspergillus sp. SF-5280. Nat Prod Res 2017; 32:214-221. [PMID: 28670919 DOI: 10.1080/14786419.2017.1346642] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A new diketopiperazine dimer designated as SF5280-415 (1) was isolated from an EtOAc extract of the marine-derived fungus Aspergillus sp. SF-5280 by various chromatographic methods. The structure of 1 was mainly determined by analysis of the NMR spectroscopic data and MS data, along with Marfey's method. This compound is a new diastereoisomer of known bispyrrolidinoindoline diketopiperazine alkaloid WIN 64745, which possesses unique architecture biosynthetically derived from an indole oxidation reaction of tryptophan.
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Affiliation(s)
- Kwang-Ho Cho
- a College of Pharmacy , Wonkwang University , Iksan , Republic of Korea
| | - Jae Hak Sohn
- b College of Medical and Life Sciences , Silla University , Busan , Republic of Korea
| | - Hyuncheol Oh
- a College of Pharmacy , Wonkwang University , Iksan , Republic of Korea
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42
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Cho KH, Sohn JH, Oh H. Isolation and structure determination of a new diketopiperazine dimer from marine-derived fungus Aspergillus sp. SF-5280. Nat Prod Res 2017. [DOI: 10.1080/14786419.2017.1346642 a31773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Affiliation(s)
- Kwang-Ho Cho
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Jae Hak Sohn
- College of Medical and Life Sciences, Silla University, Busan, Republic of Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
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43
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Kinthada LK, Babu KN, Padhi D, Bisai A. Lewis-Acid-Catalysed Reaction of 3-Hydroxy-2-oxindoles with Terminal Alkynes: Synthetic Approaches to the Pyrroloindoline Alkaloids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700507] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lakshmana K. Kinthada
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - K. Naresh Babu
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - Dikshaa Padhi
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - Alakesh Bisai
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
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44
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Luo M, Chen J, Yu L, Wei W. Concise Synthesis of Polycyclic Indoline Scaffolds through an InIII
-Catalyzed Formal [4+2] Annulation of 2,3-Disubstituted Indoles with o
-Aminobenzyl Alcohols. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700432] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mupeng Luo
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
| | - Jianxin Chen
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
| | - Linqian Yu
- School of Pharmarcy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park, Pudong 201203 Shanghai P. R. China
| | - Wanguo Wei
- Shanghai Advanced Research Institute; Chinese Academy of Sciences; University of Chinese Academy of Sciences; 99 Haike Road 201210 Shanghai P. R. China
- School of Life Science and Technology; ShanghaiTech University; 100 Haike Road 201210 Shanghai P. R. China
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45
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Hajra S, Roy S, Maity S. Reversal of Selectivity in C3-Allylation and Formal [3 + 2]-Cycloaddition of Spiro-epoxyoxindole: Unified Synthesis of Spiro-furanooxindole, (±)-N-Methylcoerulescine, (±)-Physovenine, and 3a-Allylhexahydropyrrolo[2,3-b]indole. Org Lett 2017; 19:1998-2001. [DOI: 10.1021/acs.orglett.7b00420] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Saumen Hajra
- Centre
of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India
| | - Sayan Roy
- Centre
of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India
| | - Subrata Maity
- Centre
of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India
- Department
of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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46
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Zhu G, Bao G, Li Y, Sun W, Li J, Hong L, Wang R. Efficient Catalytic Kinetic Resolution of Spiro-epoxyoxindoles with Concomitant Asymmetric Friedel-Crafts Alkylation of Indoles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700494] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gongming Zhu
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Guangjun Bao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Yiping Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Wangsheng Sun
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Jing Li
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Liang Hong
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
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47
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Zhu G, Bao G, Li Y, Sun W, Li J, Hong L, Wang R. Efficient Catalytic Kinetic Resolution of Spiro-epoxyoxindoles with Concomitant Asymmetric Friedel-Crafts Alkylation of Indoles. Angew Chem Int Ed Engl 2017; 56:5332-5335. [DOI: 10.1002/anie.201700494] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/03/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Gongming Zhu
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Guangjun Bao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Yiping Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Wangsheng Sun
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Jing Li
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
| | - Liang Hong
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 China
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48
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Song J, Chen DF, Gong LZ. Recent progress in organocatalytic asymmetric total syntheses of complex indole alkaloids. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx028] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Abstract
Indole and its structural analogues have been frequently found in numerous alkaloids, pharmaceutical products and related materials. The enantioselective construction of these structures allows efficient total synthesis of optically pure indole alkaloids, and hence has received worldwide interest. In the past decade, asymmetric organocatalysis has been recognized as one of the most powerful strategies to create chiral molecules with high levels of stereoselectivity. In particular, organocatalytic asymmetric cascade reactions often occur with multiple bond-breaking and forming events simultaneously or sequentially, leading to the appearance of various straightforward approaches to access core structures for asymmetric total synthesis. This review will summarize recent applications of asymmetric organocatalysis in the enantioselective synthesis of indole alkaloids.
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Affiliation(s)
- Jin Song
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Dian-Feng Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
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49
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Arai T, Tsuchida A, Miyazaki T, Awata A. Catalytic Asymmetric Synthesis of Chiral 2-Vinylindole Scaffolds by Friedel-Crafts Reaction. Org Lett 2017; 19:758-761. [PMID: 28134526 DOI: 10.1021/acs.orglett.6b03584] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A chiral bis(imidazolidine)pyridine (PyBidine)-Ni(OTf)2 complex smoothly catalyzed an asymmetric Friedel-Crafts reaction of 2-vinylindoles with nitroalkenes to give chiral indoles in a highly enantioselective manner while maintaining the 2-vinyl functionality. The chiral 2-vinylindoles offer unique chiral scaffolds for diverse transformations.
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Affiliation(s)
- Takayoshi Arai
- Molecular Chirality Research Center, and Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Akiko Tsuchida
- Molecular Chirality Research Center, and Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Tomoya Miyazaki
- Molecular Chirality Research Center, and Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Atsuko Awata
- Molecular Chirality Research Center, and Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage, Chiba 263-8522, Japan
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50
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Rivinoja DJ, Gee YS, Gardiner MG, Ryan JH, Hyland CJT. The Diastereoselective Synthesis of Pyrroloindolines by Pd-Catalyzed Dearomative Cycloaddition of 1-Tosyl-2-vinylaziridine to 3-Nitroindoles. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03248] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel J. Rivinoja
- School
of Chemistry, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Yi Sing Gee
- School
of Chemistry, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Michael G. Gardiner
- School of
Physical Sciences - Chemistry, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - John H. Ryan
- CSIRO
Manufacturing Flagship, Ian Wark Laboratory, Bayview Avenue, Clayton, Victoria 3168, Australia
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