Chemical constituents of Malagasy liverworts, part III: sesquiterpenoids from Bazzania decrescens and Bazzania madagassa.
In the continuation of our investigation of the phytochemical constituents of Malagasy liverworts, a new cuparane-type sesquiterpenoid together with five known compounds was isolated from Bazzania decresens. Bazzania madagassa furnished a new cyclomyltaylane-type sesquiterpenoid and a new acoradienol. The structures of the isolated compounds were determined based on a combination of physical and spectroscopic evidence. The chemosystematics of the genus Bazzania as well as the biogenesis of cyclomyltaylane sesquiterpenoids in liverworts is discussed.
Harinantenaina
Liva
L
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8514, Japan.
Kurata
Ritsu
R
Asakawa
Yoshinori
Y
D035926:Hepatophyta; D008270:Madagascar; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018514:Plant Structures; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification*
D010936:Plant Extracts; D012717:Sesquiterpenes