Journal ArticleDOI
Echitoserpidine: A new alkaloid of the fruits of Alstonia venenata
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The structure of echitoserpidine, a new alkaloid of the fruits of Alstonia venenata, has been established on the basis of spectral and chemical evidence as discussed by the authors.About:
This article is published in Phytochemistry.The article was published on 1974-03-01. It has received 8 citations till now.read more
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Chemical Diversity and Bioactivities of Monoterpene Indole Alkaloids (MIAs) from Six Apocynaceae Genera
Afrah E. Mohammed,Zainab H. Abdul-Hameed,Modhi O. Alotaibi,Nahed O. Bawakid,Tariq R. Sobahi,Ahmed Abdel-Lateff,Walied M. Alarif +6 more
TL;DR: In this paper, a review of Indole Alkaloids from six genera belonging to the family Apocynaceae is presented, and the genera (Alstonia, Rauvolfia, Kopsia, Ervatamia, and Tabernaemontana, and Rhazya) consist of 400 members and represent 20% of the species.
Journal ArticleDOI
Monoterpenoid Indole Alkaloids from Alstonia mairei
TL;DR: In this paper, three monoterpenoid indole alkaloids, (14 alpha,15 alpha)-14,15-epoxyaspidofractinine (1) and maireines A and 13 (2 and 3, resp.), together with 19 known alkaloid, were isolated from the leaves and twigs of Alstonia mairei.
Journal ArticleDOI
Structures and absolute stereochemistry of (-)-echitoveniline, (-)-11-methoxyechitoveniline and (-)-11-methoxyechitovenedine—new indole alkaloids of
P.L. Majumder,S. Joardar,T. K. Chanda,B.N. Dinda,M. Banerjee,A.B. Ray,Asima Chatterjee,P. Varenne,B.C. Das +8 more
TL;DR: In this paper, a plausible mechanism of the LAH reduction of the δ-lactones 8b and 8c to the corresponding diols 9b and 9c has been discussed.
Journal ArticleDOI
Structure and absolute stereochemistry of 19-epi-(+)-echitoveniline. A new indole alkaloid of the leaves of Alstonia venenata r.br.
TL;DR: In this article, a new indole alkaloid of the leaves of Alstonia venenata R.Br., has been shown to possess the structure and absolute stereochemistry represented by 5b on the basis of spectral and chemical evidence.
References
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Compounds Related to Podophyllotoxin. X. Synthesis of Picropodophyllin1
Journal ArticleDOI
Chemical constituents of alstonia venenata R.Br.
TL;DR: Venen atine and isovenenatine, two new indole alkaloids from Alstonia venenata R.Br.
Journal ArticleDOI
Identity of RW-47 and venoterpine and determination of their absolute configuration
TL;DR: In this article, die absolute Konfiguration ist durch ORD-CD, Vergleiche mitl-(−)-actinidin ableitbar, and RW-47 und Venoterpin sind identisch.
Related Papers (5)
Venoterpine--a new monoterpenoid alkaloid from the fruits of Alstonia venenata R.Br.
A.B. Ray,Mrs.A. Chatterjee +1 more