Studies on the constituents of the crude drug "Fritillariae bulbus." IV. On the diterpenoid constituents of the crudr "Fritillariae bulbus".
作者:JUNICHI KITAJIMA、NAOKI NODA、YOSHITERU IDA、TETSUYA KOMORI、TOSHIO KAWASAKI
DOI:10.1248/cpb.30.3922
日期:——
Three new diterpenoids, in addition to trans-communol (1), trans-communic acid [obtained in the form of the methyl ester (2)], isomimaran-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) and ent-17-norkauran-16-one (7), were isolated as non basic constituents of the crude drug "Fritillariae Bulbus" prepared from the bulbs of Fritillaria thunbergii MIQ. by treatment with lime followed by bleaching in the sun. These three diterpenoids were determined to be ent-15β, 16-epoxy-kauran-17-ol (8), ent-16β-hydroxy-kauran-17-yl ent-kaur-15-en-17-oate (9) and ent-(16S)-atisan-13, 17-oxide (10).
三种新的二萜类化合物,除了反式熊果酚(1)、反式熊果酸[以甲基酯(2)的形式获得]、异异马兰-19-醇(3)、异异马兰-19-酸[以甲基酯(4)的形式获得]、ent-kauran-16β,17-diol (5)、ent-kauran-16α,17-diol (6) 和 ent-17-norkauran-16-one (7),这些都是从 Fritillaria thunbergii MIQ.用石灰处理后在阳光下漂白。这三种二萜被确定为 ent-15β,16-epoxy-kauran-17-ol(8),ent-16β-hydroxy-kauran-17-yl ent-kaur-15-en-17-oate(9)和 ent-(16S)-atisan-13,17-oxide(10)。