飞龙掌血中三萜酸成分研究(英文)

Triterpene Acids from Toddalia asiatica

从芸香科植物飞龙掌血中提取分离出4个新三萜酸,经波谱数据分析,分别鉴定为2α,3α,19αtrihydroxy11oxo urs12en28oicacid(1),2α,3α,11α,19αtetrahydroxy urs12en28oicacid(2),2α,3αdihydroxy19oxo18,19sec o urs11,13(18)diene28oicacid(3)和2α,3β,19αtrihydroxy olean11,13(18)dien28oicacid(4)。还分离鉴定出已知成分野鸭春酸(5)、arjunicacid(6)、飞龙掌血素、勒钩内脂和β谷甾醇。

Four new triterpene acids,2α,3α, 19α-trihydroxy- 11-oxo-urs- 12-en-28-oic acid（l） ,2α,3α, 11α, 19α-tetrahydroxy-urs- 12-en-28-oic acid（2）, 2α, 3α-dihydroxy- 19-oxo-18, 19-seeo-urs-11, 13 （ 18）-dien-28-oic acid （3） and .2α, 3β, 19α-trihydroxyolean-11,13（ 18）-dien-28-olic acid（4）were isolated from the stem of Toddalia asiatica, along with the known compounds euscaphie acid （5）, arjunie acid（6）, toddaculin, teddalolactone and β-sitosterol. Their structures were elucidated on the basis of spectral evidence.