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Satheeshkumar R, Muthusankar A, Edatt L, Sameer Kumar VB, Sparkes HA, Rajendra Prasad KJ. Synthesis of heteroannulated cyclopent[b]indoles: Exploration of in vitro cytotoxicity and molecular docking studies. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1407792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Aathi Muthusankar
- Membrane Protein Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Lincy Edatt
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Padenakad, Kasaragod, India
| | - V. B. Sameer Kumar
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Padenakad, Kasaragod, India
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Wood K, Black DS, Kumar N. Acid-Catalyzed Reactions of 3-Substituted-4,6-dimethoxyindoles with Ketones. Aust J Chem 2010. [DOI: 10.1071/ch10137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Activated 3-substituted-4,6-dimethoxyindoles undergo acid catalyzed condensation with acetone and acetophenones in the presence of hydrochloric acid to give pyrrolo[a]indoles. Mixed pyrrolo[a]indoles can similarly be formed using a 1:1 mixture of two indoles. The reaction was found to be sensitive to acidity, with a 3:2 spiro condensation product being preferentially formed in the presence of p-toluenesulfonic acid.
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Affiliation(s)
- Toh-Seok Kam
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Chen YK, Chung HF, Sheu JH. Synthesis of 1-(β-indolyl)1,3-butadienes, Yuehchukene and Analogues, and Murrapanine via Acid-catalyzed Reactions of β-(1-hydroxybut-3-enyl)indoles. ACTA ACUST UNITED AC 1994. [DOI: 10.1080/10575639408044064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cheng KF, Cao GA, Yu YW, Kong YC. Synthesis of Cyclopent [b] Indole System: Synthesis of Yuehchukene Analogue. SYNTHETIC COMMUN 1994. [DOI: 10.1080/00397919408012627] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Cheng KF, Chan KP, Lai TF. New general approach to the synthesis of yuehchukene analogues. Stereoselective synthesis of 9,10-dihydro-7α,9-didemethylyuehchukene. X-Ray molecular structure of 6β-(indol-3′-yl)-7β-methyl-5-phenylsulphonyl-5,6,6aβ,7,8,9,10,10aβ-octahydroindeno[2,1-b]indole. ACTA ACUST UNITED AC 1991. [DOI: 10.1039/p19910002461] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cheng KF, Wong TT, Wong WT, Lai TF. Polyphosphate ester-catalysed cyclodehydration of monoesters of N-substituted 3-(indol-3′-yl)-5-methylcyclohex-4-ene-1,2-dicarboxylic acids; stereoselective synthesis of methyl 9-methyl-6-oxo-5-tosyl-5,6,6aβ,7β,8,10aβ-hexahydroindeno[2,1-b]indole-7α-carboxylate. X-Ray molecular structure of methyl 5-methoxy-9-methyl-6-oxo-5,6,6aβ,7β,8,10aβ-hexahydroindeno[2,1-b]indole-7-carboxylate. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/p19900002487] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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