Chemical constituents of Malagasy liverworts: cyclomyltaylanoids from Bazzania madagassa.
Five cyclomyltaylanoids (2-6), together with 1R,5R-diacetoxycyclomyltaylan-10-one (1), (+)-globulol, and ent-4beta,10alpha-dihydroxyaromadendrane have been isolated from the diethyl ether fraction of the Malagasy liverwort, Bazzania madagassa. The structure of 1 was confirmed by X-ray analysis, while those of the compounds were established on the basis of one- and two-dimensional NMR spectroscopic evidence, and comparison with data reported in the literature. The chemosystematics of B. madagassa are discussed.
Harinantenaina
Liva
L
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
Kurata
Ritsu
R
Takaoka
Shigeru
S
Asakawa
Yoshinori
Y
D018360:Crystallography, X-Ray; D035926:Hepatophyta / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification
D010936:Plant Extracts; D012717:Sesquiterpenes