1
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Yang C, Shi W, Tian J, Guo L, Zhao Y, Xia W. Visible-light-induced radical cascade cyclization: a catalyst-free synthetic approach to trifluoromethylated heterocycles. Beilstein J Org Chem 2024; 20:118-124. [PMID: 38264451 PMCID: PMC10804559 DOI: 10.3762/bjoc.20.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/10/2024] [Indexed: 01/25/2024] Open
Abstract
A visible-light-promoted research protocol for constructing dihydropyrido[1,2-a]indolone skeletons is herein described proceeding through a cascade cyclization mediated by trifluoromethyl radicals. This method allows the efficient synthesis of various indole derivatives without the need of photocatalysts or transition-metal catalysts. Mechanism experiments indicate that the process involves a radical chain process initiated by the homolysis of Umemoto's reagent. This straightforward method enables a rapid access to heterocycles containing a trifluoromethyl group.
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Affiliation(s)
- Chuan Yang
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Wei Shi
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Jian Tian
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Lin Guo
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Yating Zhao
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Xiao J, Zhou G, Ji C. Syntheses of Mersicarpine, a Monoterpenoid Indole Alkaloid with an Atypical Tetracyclic Structure. ChemistrySelect 2022. [DOI: 10.1002/slct.202201373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jie Xiao
- School of Chemistry and Environmental Sciences Shangrao Normal University No. 401 Zhimin Road Shangrao Jiangxi 334001 People's Republic of China
| | - Guang‐Hua Zhou
- School of Chemistry and Food Science Nanchang Normal University No. 889 Ruixiang Road Nanchang Jiangxi 330032 People's Republic of China
| | - Cong‐Bin Ji
- School of Chemistry and Environmental Sciences Shangrao Normal University No. 401 Zhimin Road Shangrao Jiangxi 334001 People's Republic of China
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3
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Frahm M, Voss A, Brasholz M. A short total synthesis of (±)-mersicarpine via visible light-induced cascade photooxygenation. Chem Commun (Camb) 2022; 58:5467-5469. [PMID: 35416221 DOI: 10.1039/d2cc01316a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A short total synthesis of the Kopsia alkaloid (±)-mersicarpine is presented. As the key step, a visible light-induced catalytic cascade photooxygenation was utilized, to convert a 3,3-disubstituted tetrahydrocarbazole intermediate, in one step, into a perhydropyrido[1,2-a]indole dione as the immediate precursor to the natural product. The synthesis of mersicarpine was achieved with an overall yield of 12% over 13 steps.
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Affiliation(s)
- Mario Frahm
- Institute of Chemistry, University of Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
| | - Alice Voss
- Institute of Chemistry, University of Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.
| | - Malte Brasholz
- Institute of Chemistry, University of Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany. .,Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059 Rostock, Germany
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4
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Peng WL, Jhang YJ, Chang CY, Peng PK, Zhao WT, Wu YK. Total synthesis of (±)-mersicarpine following a 6- exo-trig radical cyclization. Org Biomol Chem 2022; 20:6193-6195. [PMID: 35467680 DOI: 10.1039/d2ob00620k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described is a total synthesis of racemic mersicarpine from diethyl 4-oxopimelate. The synthetic route takes advantage of a 2-indolyl radical cyclization to construct the pyrido[1,2-a]indole scaffold bearing the all-carbon quaternary stereocenter.
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Affiliation(s)
- Wan-Ling Peng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
| | - Yin-Jia Jhang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
| | - Chieh-Yu Chang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
| | - Po-Kai Peng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
| | - Wei-Ting Zhao
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
| | - Yen-Ku Wu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.
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5
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liu Y, Cao M, Zhang S, Wang Z, Dai X, Jiang X, Dong Y, Fu J. Synthesis of C3-functionalized indole derivatives via Brønsted acid-catalyzed regioselective arylation of 2-indolylmethanols with guaiazulene. Org Biomol Chem 2022; 20:1510-1517. [DOI: 10.1039/d1ob02384e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first Brønsted acid catalyzed method for the construction of guaiazulenyl C3-functionalized indole derivatives was established. The reactions proceeded smoothly at ambient temperature by used (±)-10-camphorsulfonic acid (CSA) as catalyst,...
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6
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Wu GJ, Tan DX, Han FS. The Phosphinamide-Based Catalysts: Discovery, Methodology Development, and Applications in Natural Product Synthesis. Acc Chem Res 2021; 54:4354-4370. [PMID: 34784171 DOI: 10.1021/acs.accounts.1c00479] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In the total synthesis of natural products, synthetic efficiency has been an important driver for designing and developing new synthetic strategies and methodologies. To this end, the step, atom, and time economy and the overall yield are major factors to be considered. On the other hand, developing unified routes that can be used for synthesizing multiple molecules, specifically skeletally different classes of molecules, are also important aspects with which to be concerned. In the efforts toward efficient and flexible synthesis of structurally unique terpenoid and indole alkaloid natural products, we have designed and developed several phosphinamide-based new catalysts and reaction methodologies that have been compellingly demonstrated to be widely useful as strategic protocols for the diverse synthesis of various complex terpenoids and indole alkaloids. The important progress of these results will be summarized in this Account.In the first part, we present the stories of successful design and establishment of a novel method for the synthesis of P-stereogenic phosphinamides (P-SPhos) via a Pd-catalyzed C-H desymmetric enantioselective arylation, as well as the flexible derivatization of the P-stereogenic phosphinamides into various types of skeletally unique tricyclic and N,P-bidentate P-stereogenic compounds. Subsequently, the discovery of P-stereogenic phosphinamides as chiral organocatalysts for the desymmetric enantioselective reduction of cyclic 1,3-diketones and of phosphinamide-based cyclopalladium complex (C-Pd) as precatalysts for highly efficient Suzuki-Miyaura cross-coupling reaction of sterically congested nonactivated enolates is introduced. The notable features of the P-stereogenic phosphinamide-catalyzed desymmetric enantioselective reduction are highlighted by the broad substrate compatibility and excellent stereoselectivity, as well as most significantly, the good recoverability and reusability of catalysts. With regard to the sterically congested nonactivated enolates, such substrates are challenging for Suzuki cross-coupling reactions. We demonstrate that the phosphinamide-based cyclopalladium is a type of highly active precatalyst that allows the reaction to proceed under mild conditions and to be easily scaled up. Following the methodology development, the practical applications of these methods serving as strategic transformations are highlighted by the unified synthesis of four cyathane-type and two hamigeran-type terpenoids.In the second part, we describe the development of a robust method for oxidative Heck cross-coupling of indolyl amides by using the phosphinamide-based cyclopalladium as catalyst or phosphinamide as coligand. The method provides a general and straightforward method for diverse synthesis of indolyl δ-lactam derivatives, which present as a common core in a variety of Aspidosperma-derived indole alkaloids. The successful demonstration of this protocol for a concise and divergent synthesis of leuconodine-type indole alkaloids is also presented. We believe the results presented in this Account would have significant implications beyond our results and would find further applications in the field of synthetic methodology and natural product synthesis.
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Affiliation(s)
- Guo-Jie Wu
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin130022, China
| | - Dong-Xing Tan
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin130022, China
| | - Fu-She Han
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin130022, China
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7
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Dhote PS, Patel P, Vanka K, Ramana CV. Total synthesis of the pseudoindoxyl class of natural products. Org Biomol Chem 2021; 19:7970-7994. [PMID: 34486008 DOI: 10.1039/d1ob01285a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pseudoindoxyl sub-structural motif, amongst the large set of the indole class of alkaloids, represents a unique subset of the oxygenated indole class of the alkaloid family. A majority of this class of natural products contains complex bridged/polycyclic scaffolds with interesting biological profiles. They are thus attractive synthetic targets. Starting from 1963, twenty-eight natural products having the pseudoindoxyl scaffold have been isolated, among which the synthesis of 13 natural products has been accomplished. In this review, we highlight the completed as well as the formal total synthesis of the natural products with a spiro-pseudoindoxyl ring, with a focus on their development. The challenges and the future perspective based on the recent developments in the field will also be discussed. We strongly believe that this review will not only update but also attract the attention of researchers in dealing with the synthesis of pseudoindoxyl compounds.
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Affiliation(s)
- Pawan S Dhote
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pitambar Patel
- CSIR-North East Institute of Science and Technology, Assam-785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Kumar Vanka
- Physical Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Chepuri V Ramana
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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8
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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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9
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Generation of acyclic chiral building blocks containing a quaternary stereocenter. Formal synthesis of alkaloids of the leuconolam-leuconoxine-mersicarpine group. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Zhou J, Tan D, Han F. A Divergent Enantioselective Total Synthesis of Post‐Iboga Indole Alkaloids. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Zhou
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Remin Street Changchun Jilin 130022 China
- The University of Chinese Academy of Sciences Beijing 100864 China
| | - Dong‐Xing Tan
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Remin Street Changchun Jilin 130022 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Fu‐She Han
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Remin Street Changchun Jilin 130022 China
- University of Science and Technology of China Hefei Anhui 230026 China
- Key Lab of Synthetic Chemistry of Natural Substances Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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11
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Zhou J, Tan DX, Han FS. A Divergent Enantioselective Total Synthesis of Post-Iboga Indole Alkaloids. Angew Chem Int Ed Engl 2020; 59:18731-18740. [PMID: 32614122 DOI: 10.1002/anie.202008242] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Indexed: 11/05/2022]
Abstract
Divergent enantioselective total syntheses of five naturally occurring post-iboga indole alkaloids, dippinine B and C, 10,11-demethoxychippiine, 3-O-methyl-10,11-demethoxychippiine, and 3-hydroxy-3,4-secocoronaridine, as well as the two analogues 11-demethoxydippinine A and D, are presented for the first time. The enantioenriched aza[3.3.1]-bridged cycle, a common core intermediate to the target molecules, was constructed through an asymmetric phase-transfer-catalyzed Michael/aldol cascade reaction. The challenging azepane ring fused around the indole ring and the [3.3.1]-bridged cycle were installed through an intramolecular SN 2'-type reaction. These cyclization strategies enabled rapid construction of the [6.5.6.6.7]-pentacyclic core at an early stage. Highlights of the late-stage synthetic steps include a Pd-catalyzed Stille coupling and a highly stereoselective catalyst-controlled hydrogenation to incorporate the side chain at C20 with both R and S configurations in the natural products.
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Affiliation(s)
- Jie Zhou
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Remin Street, Changchun, Jilin, 130022, China.,The University of Chinese Academy of Sciences, Beijing, 100864, China
| | - Dong-Xing Tan
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Remin Street, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Fu-She Han
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Remin Street, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China.,Key Lab of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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12
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Göricke F, Schneider C. Palladium-Catalyzed, Enantioselective (3 + 2)-Cycloannulation of β-Keto Esters with Alkylidene 2H-Indoles toward Complex Indole-Based Heterocycles. Org Lett 2020; 22:6101-6106. [DOI: 10.1021/acs.orglett.0c02166] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fabian Göricke
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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13
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Petrini M. New Perspectives in the Indole Ring Functionalization using 2‐Indolylmethanols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901245] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marino Petrini
- School of Science and TechnologyChemistry Division, Università di Camerino via S. Agostino 1 62032 Camerino Italy
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14
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Tan D, Zhou J, Liu C, Han F. Enantioselective Total Synthesis and Absolute Configuration Assignment of (+)‐Tronocarpine Enabled by an Asymmetric Michael/Aldol Reaction. Angew Chem Int Ed Engl 2020; 59:3834-3839. [DOI: 10.1002/anie.201914868] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Dong‐Xing Tan
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
- University of Science and Technology of China Hefei Anhui 230026 China
| | - Jie Zhou
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
- The University of Chinese Academy of Sciences Beijing 100864 China
| | - Chao‐You Liu
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
| | - Fu‐She Han
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
- University of Science and Technology of China Hefei Anhui 230026 China
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15
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Enantioselective Total Synthesis and Absolute Configuration Assignment of (+)‐Tronocarpine Enabled by an Asymmetric Michael/Aldol Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914868] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Affiliation(s)
- Jing Zhang
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
- The University of Chinese Academy of Sciences, Beijing 100864, China
| | - Fu-She Han
- CAS Key Lab of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
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17
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Gandhi S, Baire B. Unusual Formation of Cyclopenta[b]indoles from 3-Indolylmethanols and Alkynes. J Org Chem 2019; 84:3904-3918. [DOI: 10.1021/acs.joc.8b03027] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Soniya Gandhi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
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18
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Liu Y, Wang H. Unified enantioselective total syntheses of (−)-scholarisine G, (+)-melodinine E, (−)-leuconoxine and (−)-mersicarpine. Chem Commun (Camb) 2019; 55:3544-3547. [DOI: 10.1039/c8cc09949a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unified strategy enabled the enantioselective syntheses of (−)-scholarisine G, (+)-melodinine E, (−)-leuconoxine and (−)-mersicarpine from a common 2-alkylated indole bearing an all-carbon quaternary stereogenic center.
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Affiliation(s)
- Yao Liu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Honggen Wang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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19
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Chen L, Zou YX, Fang XY, Wu J, Sun XH. Brønsted acid-catalysed regiodivergent phosphorylation of 2-indolylmethanols to synthesize benzylic site or C3-phosphorylated indole derivatives. Org Biomol Chem 2018; 16:7417-7424. [DOI: 10.1039/c8ob02033g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Brønsted acid catalyzed highly regiodivergent phosphorylation of 2-indolylmethanols with diarylphosphine oxides has been established, which provides an efficient protocol for accessing benzylic site or C3-phosphorylated indole derivatives with structural diversity.
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Affiliation(s)
- Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics Chengdu University
- Chengdu 610052
- P. R. China
| | - Yun-Xiang Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics Chengdu University
- Chengdu 610052
- P. R. China
| | - Xin-Yue Fang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics Chengdu University
- Chengdu 610052
- P. R. China
| | - Jie Wu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics Chengdu University
- Chengdu 610052
- P. R. China
| | - Xiao-Hua Sun
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics Chengdu University
- Chengdu 610052
- P. R. China
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20
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Affiliation(s)
- Guang-Jian Mei
- School of Chemistry and Material
Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Feng Shi
- School of Chemistry and Material
Science, Jiangsu Normal University, Xuzhou 221116, China
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21
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Zhang Y, Xue Y, Luo T. An unexpected aziridination/rearrangement/oxidation tandem reaction leading to the total synthesis of (−)-mersicarpine. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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He YY, Sun XX, Li GH, Mei GJ, Shi F. Substrate-Controlled Regioselective Arylations of 2-Indolylmethanols with Indoles: Synthesis of Bis(indolyl)methane and 3,3′-Bisindole Derivatives. J Org Chem 2017; 82:2462-2471. [DOI: 10.1021/acs.joc.6b02850] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ying-Ying He
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, China
| | - Xiao-Xue Sun
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, China
| | - Guo-Hao Li
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, China
| | - Guang-Jian Mei
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, China
| | - Feng Shi
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 221116, China
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23
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Pfaffenbach M, Gaich T. The Rhazinilam-Leuconoxine-Mersicarpine Triad of Monoterpenoid Indole Alkaloids. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 2017; 77:1-84. [DOI: 10.1016/bs.alkal.2016.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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Sun XX, Zhang HH, Li GH, He YY, Shi F. Catalytic Enantioselective and Regioselective [3+3] Cycloadditions Using 2-Indolylmethanols as 3 C Building Blocks. Chemistry 2016; 22:17526-17532. [DOI: 10.1002/chem.201603049] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Xiao-Xue Sun
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Hong-Hao Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Guo-Hao Li
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Ying-Ying He
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 P. R. China
| | - Feng Shi
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 P. R. China
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25
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Li C, Zhang HH, Fan T, Shen Y, Wu Q, Shi F. Brønsted acid-catalyzed regioselective reactions of 2-indolylmethanols with cyclic enaminone and anhydride leading to C3-functionalized indole derivatives. Org Biomol Chem 2016; 14:6932-6. [DOI: 10.1039/c6ob01282e] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An abnormal regioselective substitution of 2-indolylmethanols with nucleophiles has been established to afford C3-functionalized indole derivatives in high yield and regiospecificity (40 examples, up to 99% yield).
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Affiliation(s)
- Can Li
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou
- China
| | - Hong-Hao Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou
- China
| | - Tao Fan
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou
- China
| | - Yang Shen
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou
- China
| | - Qiong Wu
- School of Chemistry and Chemical Engineering
- Xuzhou Institute of Technology
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Chemical Engineering
- Jiangsu Normal University
- Xuzhou
- China
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26
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Allegretti PA, Huynh K, Ozumerzifon TJ, Ferreira EM. Lewis Acid Mediated Vinylogous Additions of Enol Nucleophiles into an α,β-Unsaturated Platinum Carbene. Org Lett 2015; 18:64-7. [PMID: 26652926 DOI: 10.1021/acs.orglett.5b03246] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A variety of substituted indoles and benzofurans are accessed via a platinum catalyzed annulation and vinylogous addition of enol nucleophiles. Several β-dicarbonyl compounds participate in the reaction, as do α-nitro and α-cyano carbonyl species. Subjecting the indole products to acidic conditions results in the formation of fused heterocycles.
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Affiliation(s)
- Paul A Allegretti
- Department of Chemistry, University of Georgia , Athens, Georgia 30602, United States
| | - Khoi Huynh
- Department of Chemistry, University of Georgia , Athens, Georgia 30602, United States
| | - Tarik J Ozumerzifon
- Department of Chemistry, University of Georgia , Athens, Georgia 30602, United States
| | - Eric M Ferreira
- Department of Chemistry, University of Georgia , Athens, Georgia 30602, United States
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27
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Wong SP, Gan CY, Lim KH, Ting KN, Low YY, Kam TS. Arboridinine, a Pentacyclic Indole Alkaloid with a New Cage Carbon-Nitrogen Skeleton Derived from a Pericine Precursor. Org Lett 2015; 17:3628-31. [PMID: 26183592 DOI: 10.1021/acs.orglett.5b01757] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new monoterpene indole alkaloid characterized by an unprecedented pentacyclic cage skeleton, arboridinine (1), was isolated from a Malaysian Kopsia species. The structure and absolute configuration of the alkaloid were determined based on NMR, MS, and X-ray diffraction analysis. A possible biogenetic pathway from a pericine precursor is presented.
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Affiliation(s)
- Suet-Pick Wong
- †Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Chew-Yan Gan
- ‡University Malaysia of Computer Science and Engineering, Jalan Alamanda 2, Precint 1, 62000 Putrajaya, Malaysia
| | | | | | - Yun-Yee Low
- †Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Toh-Seok Kam
- †Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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28
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Xu Z, Wang Q, Zhu J. Total Syntheses of (-)-Mersicarpine, (-)-Scholarisine G, (+)-Melodinine E, (-)-Leuconoxine, (-)-Leuconolam, (-)-Leuconodine A, (+)-Leuconodine F, and (-)-Leuconodine C: Self-Induced Diastereomeric Anisochronism (SIDA) Phenomenon for Scholarisine G and Leuconodines A and C. J Am Chem Soc 2015; 137:6712-24. [PMID: 25946614 DOI: 10.1021/jacs.5b03619] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enantioselective total syntheses of title natural products from a common cyclohexenone derivative (S)-18 were reported. Ozonolysis of (S)-18 afforded a stable diketo ester (R)-17 that was subsequently converted to two skeletally different natural products, i.e., (-)-mersicarpine (8) with a [6.5.6.7] fused tetracyclic ring system and (-)-scholarisine G (9) with a [6.5.6.6.5] fused pentacyclic skeleton, respectively. The postcyclization diversification was realized by taking advantage of the facile conversion of (+)-melodinine E (6) to N-acyliminium ion 7, from which a hydroxy group was selectively introduced to the C6, C7, C10 and the central C21 position of diazafenestrane system, leading to (-)-leuconodine A (11), (+)-leuconodine F (12), (-)-scholarisine G (9), (-)-leuconodine C (13), and skeletally different (-)-leuconolam (5). Furthermore, an unprecedented non-natural oxabridged oxadiazafenestrane 68 was formed by oxidation of (+)-melodinine E (6). During the course of this study, a strong self-induced diastereomeric anisochronism (SIDA) phenomenon was observed for scholarisine G (9), leuconodines A (11) and C (13). X-ray structures of both the racemic and the enantiopure natural products 9, 11, and 13 were obtained. The different crystal packing of these two forms nicely explained the chemical shift differences observed in the (1)H NMR spectra of the racemic and the enantio-enriched compounds in an achiral environment.
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Affiliation(s)
- Zhengren Xu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH5304, CH-1015 Lausanne, Switzerland
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