Four ent-kaurane-type diterpenoids from Croton tonkinensis GAGNEP.
Four ent-kaurane-type diterpenoids from Croton tonkinensis GAGNEP.
复制标题
DOI：
10.1248/cpb.52.879
复制
发表时间：
2004-07-01
影响因子：
1.7
通讯作者：
Otsuka, H
中科院分区：
文献类型：
--
作者：
Giang, PM;Son, PT;Otsuka, H
取自越南特有药用植物巴豆的叶子。从大戟科（Euphorbiaceae）中分离得到4个新的ent-kauran型二萜类化合物ent-1 α、14 α -二乙酰氧基-7 β -羟基kaurl -16-en-15-one(1)、ent-1 α、7 β -二乙酰氧基-14 α -羟基kaurl -16-en-15-one(2)、ent-18-乙酰氧基-14 α -羟基kaurl -16-en-15-one(3)和ent-(16S)-18-乙酰氧基-7 β -羟基kauran-15-one(4)。它们的结构通过光谱分析得到了证实。
From the leaves of the endemic Vietnamese medicinal plant Croton tonkinensis GAGNEP. (Euphorbiaceae) the four new ent-kaurane-type diterpenoids ent-1alpha,14alpha-diacetoxy-7beta-hydroxykaur-16-en-15-one (1), ent-1alpha,7beta-diacetoxy-14alpha-hydroxykaur-16-en-15-one (2), ent-18-acetoxy-14alpha-hydroxykaur-16-en-15-one (3), and ent-(16S)-18-acetoxy-7beta-hydroxykauran-15-one (4) were isolated. Their structures were elucidated by spectroscopic analyses.