Studies on the constituents of the crude drug "Fritillariae bulbus." III. On the diterpenoid constituents of fresh bulbs of Fritillaria thunbergii Miq.
作者:JUNICHI KITAJIMA、TETSUYA KOMORI、TOSHIO KAWASAKI
DOI:10.1248/cpb.30.3912
日期:——
In addition to trans-communol and trans-communic acid (obtained in the form of the methyl ester), seven new diterpenoids were isolated as non basic constituents from fresh bulbs of Fritillaria thunbergii MIQ. (Liliaceae). Their structures were determined to be isopimaran-19-ol (3), isopimaran-19-oic acid [obtained in the form of the methyl ester (4)], ent-kauran-16β, 17-diol (5), ent-kauran-16α, 17-diol (6), ent-16β, 17-epoxy-kaurane (7), ent-16α-methoxy-kauran-17-ol (8), and ent-kaur-15-en-17-ol (9).
除了反式厚朴酚和反式厚朴酸(以甲基酯的形式获得)外,还从新鲜的 Fritillaria thunbergii MIQ.(百合科)的新鲜鳞茎中分离出了七种新的二萜类非碱性成分。它们的结构被确定为异马兰-19-醇(3)、异马兰-19-酸[以甲酯形式获得(4)]、ent-kauran-16β,17-二醇(5)、ent-kauran-16α,17-二醇(6)、ent-16β,17-环氧-kaurane(7)、ent-16α-甲氧基-kauran-17-醇(8)和ent-kaur-15-烯-17-醇(9)。