作者:Masao Toyota、Yoshinori Asakawa
DOI:10.1016/0031-9422(93)85353-s
日期:1993.10
The liverwort, Nardia subclavata, afforded two new diterpene esters, bis-[ent-16-kauren-14R-yl] malonate and a bisditerpene derived from the esterification of malonic acid by phytol and ent-16-kauren-14R-ol, in addition to perrottetin E, beta-barbatene, (-)-kolavelool and ent-16-kauren-14R-yl hydrogen malonate. Their structures were established by chemical and spectral means. Perrottetin E and ent-16-kauren-14R-yl hydrogen malonate were the major constituents of this species.