Chemical constituents from Cyathostemma wrayi king and their chemophenetic significance
Document Type
Article
Publication Date
12-1-2024
Abstract
The phytochemical studies on the bark of Cyathostemma wrayi King resulted in the identification of ten alkaloids consisting of four oxoaporphines; lysicamine (1), atherospermidine (2), thalicminine (3), liriodenine (4), five aporphines; xylopine (5), nornuciferine (6), annonaine (7), norstephalagine (8), asimilobine (9), and one propaporphine; stepharine (10). The structural characterisation of all the isolated alkaloids was confirmed through the analysis of spectroscopic data and comparison with literature data. This is the first report on the alkaloids of Cyathostemma wrayi and also the first report on the occurrence of aporphine (1-3) and proaporphine (5-10) alkaloids in the genus of Cyathostemma. In addition, the chemophenetic significance of the isolated alkaloids was summarized.
Keywords
Annonaceae, Cyathostemma wrayi, Alkaloids, Aporphines
Divisions
chemistry,CHEMISTRY,cenar
Funders
Universiti Malaya Research Grant (RK011-2020)
Publication Title
Biochemical Systematics and Ecology
Volume
117
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND