1
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Freeman EE, Jackson R, Luo J, Somwaru R, Sons AA, Bean A, Buckle RN, Herr RJ. A Three-Step Method for the Preparation of N-Substituted 3,4-Dihydroisoquinolin-1(2 H)-ones and Heteroaryl-Fused 3,4-Dihydropyridin-2(1 H)-ones from 2-Bromobenzoate Precursors. J Org Chem 2023; 88:2589-2598. [PMID: 36706424 DOI: 10.1021/acs.joc.2c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We demonstrate a general method for the preparation of diverse N-substituted 3,4-dihydroisoquinolin-1(2H)-one compounds through an overall three-step cross-coupling/cyclization/N-deprotection/N-alkylation sequence. In the first step, ethyl 2-bromobenzoates and 2-bromo-1-carboxyethyl heterocycles are cross-coupled with commercially available potassium (2-((tert-butoxycarbonyl)amino)ethyl)trifluoroborate to produce (hetero)aryl-substituted 3-[(N-Boc-2-carboxyethyl)phenyl]ethylamines. In a subsequent two-stage process, these (hetero)arylethylamines undergo base-mediated ring closure followed by N-deprotection and N-alkylation to produce N-substituted 3,4-dihydroisoquinolin-1(2H)-ones and heteroaryl-fused N-benzyl 3,4-dihydropyridin-2(1H)-ones. Mechanistic work was performed to elucidate the order of transformations for the latter two-stage process. The method was also extended to the production of N-benzyl isoindolin-1-one and N-benzyl 2,3,4,5-tetrahydro-1H-benzo[c]azepin-1-one.
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Affiliation(s)
- Emily E Freeman
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Randy Jackson
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Jessica Luo
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Rajen Somwaru
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Alex A Sons
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Andrew Bean
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Ronald N Buckle
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - R Jason Herr
- Medicinal Chemistry Department, Curia Global, Inc., 26 Corporate Circle, Albany, New York 12203, United States
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2
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Guha S, Yussif El‐Deeb I, Yadav S, Das R, Dutta Dubey K, Baruah M, Ludovic G, Sen S. Capturing a Pentacyclic Fragment‐Based Library Derived from Perophoramidine: Their Design, Synthesis and Evaluation as Anticancer Compounds by DNA Double‐Strand Breaks (DSB) and PARP‐1 Inhibition. Chemistry 2022; 28:e202202405. [DOI: 10.1002/chem.202202405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Souvik Guha
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | | | - Shalini Yadav
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | - Ranajit Das
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | | | - Mousumi Baruah
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
| | - Gremaud Ludovic
- School of Engineering and Architecture Institute of Chemical Technology at University of Applied Sciences and Arts of Western Mumbai, Switzerland 1700 Fribourg Switzerland
| | - Subhabrata Sen
- Department of Chemistry School of Natural Sciences Shiv Nadar University, Delhi NCR
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3
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Zheng Y, He XC, Gao J, Xie ZZ, Wang ZW, Liu ZL, Chen K, Xiang HY, Chen XQ, Yang H. Programmable iodization/deuterolysis sequences of phosphonium ylides to access deuterated benzyl iodides and aromatic aldehydes. Chem Commun (Camb) 2022; 58:4215-4218. [PMID: 35274648 DOI: 10.1039/d2cc00537a] [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
Herein, a tunable iodization/deuterolysis protocol for phosphonium ylides by employing D2O as the deuterium source was designed. Notably, this process could be manipulated by tuning the base, thus leading to two valuable deuterated building blocks - benzyl iodides and aromatic aldehydes with broad substrate scope, good functional group compatibility and excellent deuteration degree. Concise syntheses of a series of deuterated drug analogues have been achieved based on the developed deuteration reaction platform.
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Affiliation(s)
- Yu Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xian-Chen He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhen-Zhen Xie
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Wei Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Lin Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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4
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Synthesis of Indoloquinolines: An Intramolecular Cyclization Leading to Advanced Perophoramidine-Relevant Intermediates. Molecules 2021; 26:molecules26196039. [PMID: 34641583 PMCID: PMC8513048 DOI: 10.3390/molecules26196039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 12/03/2022] Open
Abstract
The bioactive natural product perophoramidine has proved a challenging synthetic target. An alternative route to its indolo[2,3-b]quinolone core structure involving a N-chlorosuccinimde-mediated intramolecular cyclization reaction is reported. Attempts to progress towards the natural product are also discussed with an unexpected deep-seated rearrangement of the core structure occurring during an attempted iodoetherification reaction. X-ray crystallographic analysis provides important analytical confirmation of assigned structures.
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5
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Alachouzos G, Frontier AJ. Cyclization Strategies for the Concurrent Installation of Multiple Quaternary Stereogenic Centers. Isr J Chem 2021. [DOI: 10.1002/ijch.202100014] [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)
- Georgios Alachouzos
- Stratingh Institute of Chemistry Rijksuniversiteit Groningen Nijenborgh 4 9747AG Groningen, The Netherlands
| | - Alison J. Frontier
- Department of Chemistry University of Rochester 414 Hutchison Hall, 100 Trustee Road Rochester New York 14627-0216 United States
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6
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Tsukano C, Nakajima M, Hande SM, Takemoto Y. Palladium-catalyzed intramolecular carboborylation of 1,3-diene and synthesis of ABCD ring of communesins. Org Biomol Chem 2019; 17:1731-1735. [PMID: 30310915 DOI: 10.1039/c8ob02224k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A palladium-catalyzed intramolecular carboborylation of 1,3-diene has been developed for the synthesis of iminoindolines with a quaternary carbon centre. This method was applied to a substrate bearing several functional groups to afford a complex iminoindoline, which was subsequently converted into an ABCD ring model compound of communesins via an intramolecular Friedel-Crafts-type reaction.
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Affiliation(s)
- Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan.
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7
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Nakajima M, Tsukano C, Yasui M, Takemoto Y. Synthesis of the ABCDG ring skeleton of communesin F based on carboborylation of 1,3-diene and Bi(OTf) 3-catalyzed cyclizations. J Antibiot (Tokyo) 2019; 72:407-419. [PMID: 30760839 DOI: 10.1038/s41429-019-0142-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/18/2018] [Accepted: 12/26/2018] [Indexed: 11/09/2022]
Abstract
Communesins, isolated from the mycelium of a strain of Penicillium sp., are cytotoxic heptacyclic indole alkaloids bearing a bis-aminal structure and two contiguous quaternary carbon centers. Toward a total synthesis of communesin F, we synthesized a pentacyclic ABCDG ring skeleton via carboborylation of 1,3-diene and a Friedel-Crafts-type cyclization, resulting in the formation of an azepine ring through a Bi(OTf)3-catalyzed SN2' reaction.
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Affiliation(s)
- Motoyuki Nakajima
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Motohiro Yasui
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan.
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8
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Voute N, Neal AR, Medda F, Johnston CA, Slawin AM, Westwood NJ. From one to two quaternary centers: Ester or nitrile α-alkylation applied to bioactive alkaloids. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Heravi MM, Ghalavand N, Ghanbarian M, Mohammadkhani L. Applications of Mitsunobu Reaction in total synthesis of natural products. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Nastaran Ghalavand
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Manizheh Ghanbarian
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Leyla Mohammadkhani
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
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10
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Johnston CA, Wilkie RP, Krauss H, Neal AR, Slawin AM, Lebl T, Westwood NJ. Polycyclic ethers and an unexpected dearomatisation reaction during studies towards the bioactive alkaloid, perophoramidine. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Yang ZP, Jiang R, Zheng C, You SL. Iridium-Catalyzed Intramolecular Asymmetric Allylic Alkylation of Hydroxyquinolines: Simultaneous Weakening of the Aromaticity of Two Consecutive Aromatic Rings. J Am Chem Soc 2018; 140:3114-3119. [DOI: 10.1021/jacs.8b00136] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ze-Peng Yang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Ru Jiang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Chao Zheng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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12
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Wu L, Zhang QR, Huang JR, Li Y, Su F, Dong L. The application of Morita-Baylis-Hillman reaction: Synthetic studies on perophoramidine. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Hoang A, Popov K, Somfai P. An Efficient Synthesis of (±)-Dehaloperophoramidine. J Org Chem 2017; 82:2171-2176. [PMID: 28145119 DOI: 10.1021/acs.joc.6b02969] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anita Hoang
- Centre for Analysis and Synthesis,
Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Kirill Popov
- Centre for Analysis and Synthesis,
Department of Chemistry, Lund University, 22100 Lund, Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis,
Department of Chemistry, Lund University, 22100 Lund, Sweden
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14
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Popov K, Hoang A, Somfai P. Concise Total Synthesis of Dehaloperophoramidine. Angew Chem Int Ed Engl 2016; 55:1801-4. [PMID: 26676910 DOI: 10.1002/anie.201510661] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Indexed: 11/09/2022]
Abstract
Perophoramidine, dehaloperophoramidine, and communesin F are structurally related alkaloids having intriguing polycyclic structures. A strategy for the synthesis of dehaloperophoramidine has been developed. In this synthesis all skeletal atoms and all functional groups required to reach the target molecule are incorporated early in the sequence. This approach led to the discovery of two novel substrate-specific domino processes, one encompassing four steps and the other comprising five steps, thus resulting in an eight-step synthesis of dehaloperophoramidine.
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Affiliation(s)
- Kirill Popov
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Anita Hoang
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden. .,Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia.
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15
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Wilkie RP, Neal AR, Johnston CA, Voute N, Lancefield CS, Stell MD, Medda F, Makiyi EF, Turner EM, Stephen Ojo O, Slawin AMZ, Lebl T, Mullen P, Harrison DJ, Ireland CM, Westwood NJ. Total synthesis of dehaloperophoramidine using a highly diastereoselective Hosomi–Sakurai reaction. Chem Commun (Camb) 2016; 52:10747-50. [DOI: 10.1039/c6cc05747k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis involving diastereoselective Hosomi–Sakurai reaction to install the contiguous quaternary stereocentres.
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16
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Affiliation(s)
- Kirill Popov
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
| | - Anita Hoang
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
- Institute of Technology; University of Tartu; Nooruse 1 50411 Tartu Estonia
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17
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Yang ZP, Wu QF, Shao W, You SL. Iridium-Catalyzed Intramolecular Asymmetric Allylic Dearomatization Reaction of Pyridines, Pyrazines, Quinolines, and Isoquinolines. J Am Chem Soc 2015; 137:15899-906. [PMID: 26605697 DOI: 10.1021/jacs.5b10440] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The first Ir-catalyzed intramolecular asymmetric allylic dearomatization reaction of pyridines, pyrazines, quinolines, and isoquinolines has been developed. Enabled by in situ formed chiral Ir-catalyst, the dearomatized products were isolated in high levels of yield (up to 99% yield) and enantioselectivity (up to 99% ee). It is worth noting that the Me-THQphos ligand is much more efficient than other tested ligands for the dearomatization of pyrazines and certain quinolines. Mechanistic studies of the dearomatization reaction were carried out, and the results suggest the feasibility of an alternative process which features the formation of a quinolinium as the key intermediate. The mechanistic findings render this reaction a yet unknown type in the chemistry of Reissert-type reactions. In addition, the utility of this method was showcased by a large-scale reaction and formal synthesis of (+)-gephyrotoxin.
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Affiliation(s)
- Ze-Peng Yang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Qing-Feng Wu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Wen Shao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, China
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18
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Abstract
The communesin alkaloids are a diverse family of Penicillium-derived alkaloids. Their caged-polycyclic structure and intriguing biological profiles have made these natural products attractive targets for total synthesis. Similarly, the ascidian-derived alkaloid, perophoramidine, is structurally related to the communesins and has also become a popular target for total synthesis. This review serves to summarize the many elegant approaches that have been developed to access the communesin alkaloids and perophoramidine. Likewise, strategies to access the communesin ring system are reviewed.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305-5080 (USA).
| | - Maksim Osipov
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305-5080 (USA)
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19
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Liao H, Chatupheeraphat A, Hsiao C, Atodiresei I, Rueping M. Asymmetric Brønsted Acid Catalyzed Synthesis of Triarylmethanes—Construction of Communesin and Spiroindoline Scaffolds. Angew Chem Int Ed Engl 2015; 54:15540-4. [DOI: 10.1002/anie.201505981] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/12/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Hsuan‐Hung Liao
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241‐809‐2665
| | - Adisak Chatupheeraphat
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241‐809‐2665
| | - Chien‐Chi Hsiao
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241‐809‐2665
| | - Iuliana Atodiresei
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241‐809‐2665
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074 Aachen (Germany), Fax: (+49) 241‐809‐2665
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20
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Liao HH, Chatupheeraphat A, Hsiao CC, Atodiresei I, Rueping M. Asymmetrische Brønsted-Säure-katalysierte Synthese von Triarylmethanen - Aufbau von Communesin- und Spiroindolin-Gerüsten. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505981] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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21
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Lee CW, Han SJ, Virgil SC, Stoltz BM. Stereochemical evaluation of bis(phosphine) copper catalysts for the asymmetric alkylation of 3-bromooxindoles with α-arylated malonate esters. Tetrahedron 2015; 71:3666-3670. [PMID: 25983348 PMCID: PMC4429905 DOI: 10.1016/j.tet.2014.10.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An improved method for the asymetric alkylation of 3-bromooxindoles with α-arylated malonate esters is described. The asymmetric alkylation demonstrated was achieved up to 70% ee utilizing a copper(II) bis(phosphine) complex.
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Affiliation(s)
- Chung Whan Lee
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125, United States
| | - Seo-Jung Han
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125, United States
| | - Scott C. Virgil
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125, United States
| | - Brian M. Stoltz
- Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125, United States
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22
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Sanzone A, Somfai P. A Diels-Alder Approach to a Communesin Model: A/B-Cyclization Route. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500177] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Han SJ, Vogt F, May J, Krishnan S, Gatti M, Virgil S, Stoltz BM. Evolution of a unified, stereodivergent approach to the synthesis of communesin F and perophoramidine. J Org Chem 2015; 80:528-47. [PMID: 25402459 PMCID: PMC4285143 DOI: 10.1021/jo502534g] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 01/19/2023]
Abstract
Expedient synthetic approaches to the highly functionalized polycyclic alkaloids communesin F and perophoramidine are described using a unified approach featuring a key decarboxylative allylic alkylation to access a crucial and highly congested 3,3-disubstituted oxindole. Described are two distinct, stereoselective alkylations that produce structures in divergent diastereomeric series possessing the critical vicinal all-carbon quaternary centers needed for each synthesis. Synthetic studies toward these challenging core structures have revealed a number of unanticipated modes of reactivity inherent to these complex alkaloid scaffolds. Additionally, several novel and interesting intermediates en route to the target natural products, such as an intriguing propellane hexacyclic oxindole encountered in the communesin F sequence, are disclosed. Indeed, such unanticipated structures may prove to be convenient strategic intermediates in future syntheses.
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Affiliation(s)
- Seo-Jung Han
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | | | | | | | | | - Scott
C. Virgil
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
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24
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Long R, Huang J, Gong J, Yang Z. Direct construction of vicinal all-carbon quaternary stereocenters in natural product synthesis. Nat Prod Rep 2015; 32:1584-601. [DOI: 10.1039/c5np00046g] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Molecules containing vicinal all-carbon quaternary stereocenters are found in many secondary metabolites, and they exhibit a variety of biological and pharmacological activities.
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Affiliation(s)
- Rong Long
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Jun Huang
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Jianxian Gong
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Zhen Yang
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
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Han SJ, Vogt F, Krishnan S, May JA, Gatti M, Virgil SC, Stoltz BM. A diastereodivergent synthetic strategy for the syntheses of communesin F and perophoramidine. Org Lett 2014; 16:3316-9. [PMID: 24909760 PMCID: PMC4068777 DOI: 10.1021/ol5013263] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient, unified, and stereodivergent approach toward communesin F and perophoramidine was examined. The C(3) all-carbon quaternary center of an oxindole was smoothly constructed by base-promoted indolone-malonate alkylation chemistry. The complementary relative stereochemistry of the crucial vicinal quaternary centers found in communesin F and perophoramidine was selectively installed by substrate-controlled decarboxylative allylic alkylations.
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Affiliation(s)
- Seo-Jung Han
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology , 1200 East California Boulevard, MC 101-20, Pasadena, California 91125, United States
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Yang ZP, Wu QF, You SL. Direct Asymmetric Dearomatization of Pyridines and Pyrazines by Iridium-Catalyzed Allylic Amination Reactions. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404286] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yang ZP, Wu QF, You SL. Direct Asymmetric Dearomatization of Pyridines and Pyrazines by Iridium-Catalyzed Allylic Amination Reactions. Angew Chem Int Ed Engl 2014; 53:6986-9. [DOI: 10.1002/anie.201404286] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 11/07/2022]
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Abstract
A Diels-Alder reaction is used as a key step in a synthetic study toward communesin F, in order to simultaneously introduce both of the all-carbon quaternary stereocenters with complete control of relative stereochemistry. Further manipulations of the cycloadduct, toward the hexacyclic core-structure of communesin F, are also disclosed.
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Affiliation(s)
- Jakob Danielsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University , Box 124, 221 00 Lund, Sweden
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Takemoto Y, Tsukano C. Synthetic Approaches to Spiro-oxindoles and Iminoindolines Based on Formation of C2–C3 Bond. HETEROCYCLES 2014. [DOI: 10.3987/rev-14-805] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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