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Saleh SA, Hazra A, Singh MS, Hajra S. Selective C3-Allylation and Formal [3 + 2]-Annulation of Spiro-Aziridine Oxindoles: Synthesis of 5'-Substituted Spiro[pyrrolidine-3,3'-oxindoles] and Coerulescine. J Org Chem 2022; 87:8656-8671. [PMID: 35731944 DOI: 10.1021/acs.joc.2c00863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Brønsted acid- and/or Lewis acid-catalyzed selective C3-allylation and formal [3 + 2]-annulation of spiro-aziridine oxindoles with allylsilanes have been demonstrated to deliver direct access to 3-allyl-3-aminomethyl oxindoles and 5-silyl methyl spiro[pyrrolidine-3,3'-oxindoles], respectively. The acid-catalyzed methods do not provide any stereoselectivity when chiral spiroaziridines are used. However, the reaction of nonracemic sprioaziridines with allyl-Grignard reagent under catalyst-free conditions afforded 3-allyl-3-aminomethyl oxindoles with good stereoselectivity (ee up to 80%). The allylation protocol is utilized for the short synthesis of coerulescine and various 5'-substituted spiro[pyrrolidine-3,3'-oxindoles].
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Affiliation(s)
- Sk Abu Saleh
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India.,Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Atanu Hazra
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India.,Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Saumen Hajra
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Raebareli Road, Lucknow 226014, India
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2
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Litvajova M, Sorrentino E, Twamley B, Connon SJ. Base-free enantioselective S N2 alkylation of 2-oxindoles via bifunctional phase-transfer catalysis. Beilstein J Org Chem 2021; 17:2287-2294. [PMID: 34621391 PMCID: PMC8450950 DOI: 10.3762/bjoc.17.146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/18/2021] [Indexed: 11/23/2022] Open
Abstract
N-Protected oxindole derivatives of unprecedented malleability bearing ester moieties at C-3 have been shown to participate in enantioselective phase-transfer-catalysed alkylations promoted by ad-hoc designed quaternary ammonium salts derived from quinine bearing hydrogen-bond donating substituents. For the first time in such phase-transfer-catalysed enolate alkylations, the reactions were carried out under base-free conditions. It was found that urea-based catalysts outperformed squaramide derivatives, and that the installation of a chlorine atom adjacent to the catalyst’s quinoline moiety aided in avoiding selectivity-reducing complications related to the production of HBr in these processes. The influence of steric and electronic factors from both the perspective of the nucleophile and electrophile were investigated and levels of enantiocontrol up to 90% ee obtained. The synthetic utility of the methodology was demonstrated via the concise enantioselective synthesis of a potent CRTH2 receptor antagonist.
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Affiliation(s)
- Mili Litvajova
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Emiliano Sorrentino
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Stephen J Connon
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland
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3
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Li ZL, Sun KK, Cai C. Copper-catalyzed cyanation of heterocycle C–H bonds with ethyl(ethoxymethylene)cyanoacetate as a cyanating agent and its mechanism. Org Chem Front 2018. [DOI: 10.1039/c8qo00322j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A method for copper-catalyzed cyanation of heterocycles with ethyl(ethoxymethylene)cyanoacetate as a nontoxic and easily available cyanating agent via C–H bond activation has been developed.
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Affiliation(s)
- Ze-lin Li
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Kang-kang Sun
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
| | - Chun Cai
- College of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing
- China
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4
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Shi Q, Meehan MC, Galella M, Park H, Khandelwal P, Hynes J, Dhar TGM, Marcoux D. Protected Chloroethyl and Chloropropyl Amines as Conformationally Unrestricted Annulating Reagents. Org Lett 2017; 20:337-340. [DOI: 10.1021/acs.orglett.7b03548] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qing Shi
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Mariah C. Meehan
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Michael Galella
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Hyunsoo Park
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Purnima Khandelwal
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - John Hynes
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - T. G. Murali Dhar
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - David Marcoux
- Research and Development, Bristol-Myers Squibb Company, Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
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5
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Qi C, Hu X, Jiang H. Copper-mediated C–H cyanation of (hetero)arenes with ethyl (ethoxymethylene)cyanoacetate as a cyanating agent. Chem Commun (Camb) 2017; 53:7994-7997. [DOI: 10.1039/c7cc03384b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-mediated direct C–H cyanation reaction of (hetero)arenes with ethyl (ethoxymethylene)cyanoacetate as a safe cyanating agent has been developed.
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Affiliation(s)
- Chaorong Qi
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Xiaohan Hu
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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6
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Lipase immobilization on hyroxypropyl methyl cellulose support and its applications for chemo-selective synthesis of β-amino ester compounds. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.07.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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7
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Gloriozov IP, Muzalevskiy VM, Rulev AY, Kondrashov EV, Nenajdenko VG, Ustynyuk YA. Unusual reaction of bromoalkyl trifluoromethyl ketones with symmetrically disubstituted ethylenediamines. Theoretic investigation applying methods of density functional and multiparticle perturbation theory МР-2. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016080029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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El Bouakher A, Le Goff R, Tasserie J, Lhoste J, Martel A, Comesse S. Synthesis of Oxazolidin-4-ones: Domino O-Alkylation/Aza-Michael/Intramolecular Retro-Claisen Condensation. Org Lett 2016; 18:2383-6. [DOI: 10.1021/acs.orglett.6b00851] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Abderrahman El Bouakher
- Normandie Université, UNIHAVRE, URCOM, 76600 Le Havre 25, Rue Philipe Lebon, BP 540, F-76600 Le Havre, France
| | - Ronan Le Goff
- Normandie Université, UNIHAVRE, URCOM, 76600 Le Havre 25, Rue Philipe Lebon, BP 540, F-76600 Le Havre, France
| | - Jordan Tasserie
- Normandie Université, UNIHAVRE, URCOM, 76600 Le Havre 25, Rue Philipe Lebon, BP 540, F-76600 Le Havre, France
| | - Jérôme Lhoste
- Université du Maine, IMMM, UMR 6283 CNRS, 72085 Le Mans, France
| | - Arnaud Martel
- Université du Maine, IMMM, UMR 6283 CNRS, 72085 Le Mans, France
| | - Sébastien Comesse
- Normandie Université, UNIHAVRE, URCOM, 76600 Le Havre 25, Rue Philipe Lebon, BP 540, F-76600 Le Havre, France
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9
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Muzalevskiy VM, Rulev AY, Kondrashov EV, Romanov AR, Ushakov IA, Chertkov VA, Nenajdenko VG. Multichannel Reaction of α-Bromoenones with 1,2-Diamines: Synthesis of 1,4-Diazabicyclo[4.1.0]hept-4-enes by Reaction withN-Unsubstituted 1,2-Diamines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501584] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Le Goff R, Sanselme M, Lawson AM, Daïch A, Comesse S. Highly Stereoselective Domino Oxa-Michael/Aza-Michael/Cyclization: Synthesis of Bicyclic Lactams and Spirooxindole Skeleton. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a nonrearranged monoterpenoid unit. Nat Prod Rep 2015; 32:1389-471. [DOI: 10.1039/c5np00032g] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review summarizes the isolation, structure determination, total syntheses and biological activities of simple indole alkaloids and those with a nonrearranged monoterpenoid unit, with literature coverage from 2012 to 2013.
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Affiliation(s)
- Minoru Ishikura
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Takumi Abe
- School of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-Tobetsu
- Japan
| | - Tominari Choshi
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
| | - Satoshi Hibino
- Graduate School of Pharmacy & Pharmaceutical Sciences
- Faculty of Pharmacy & Pharmaceutical Sciences
- Fukuyama University
- Fukuyama
- Japan
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12
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Mukaiyama T, Ogata K, Sato I, Hayashi Y. Asymmetric organocatalyzed Michael addition of nitromethane to a 2-oxoindoline-3-ylidene acetaldehyde and the three one-pot sequential synthesis of (-)-horsfiline and (-)-coerulescine. Chemistry 2014; 20:13583-8. [PMID: 25155110 DOI: 10.1002/chem.201403932] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Indexed: 11/07/2022]
Abstract
(-)-Horsfiline and (-)-coerulescine were synthesized through three one-pot operations in 33 and 46% overall yield, respectively. Key to the success was the efficient use of a diarylprolinol silyl ether to catalyze the asymmetric Michael addition of nitromethane to a 2-oxoindoline-3-ylidene acetaldehyde. This allowed the all-carbon quaternary, spirocyclic carbon stereocenter to be constructed in good yield with excellent enantioselectivity.
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Affiliation(s)
- Takasuke Mukaiyama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6566 http://www.ykbsc.chem.tohoku.ac.jp
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13
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Patel B, Saviolaki G, Ayats C, Garcia MAE, Kapadia T, Hilton ST. Tuneable radical cyclisations: a tin-free approach towards tricyclic and spirocyclic heterocycles via a common precursor. RSC Adv 2014. [DOI: 10.1039/c4ra02420f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A novel common precursor approach towards both tricyclic and spirocyclic heterocycles is described. Cyclisations are based on thiyl radical/isocyanide methodology and avoid the use of tin.
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Affiliation(s)
- B. Patel
- UCL School of Pharmacy
- London, UK
| | | | - C. Ayats
- UCL School of Pharmacy
- London, UK
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14
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Bronsted acid-catalyzed rapid enol-ether formation of 2-hydroxyindole-3-carboxaldehydes. Mol Divers 2013; 17:827-34. [DOI: 10.1007/s11030-013-9470-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 08/03/2013] [Indexed: 10/26/2022]
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