摘要
从腺梗豨莶中分离得到一个新的ent-pimarane型二萜类化合物ent-16-nor-3-oxo-pimar-8(14)-en-15-al(1),以及4个已知二萜类化合物kirenol(2),ent-2-oxo-15,16,19-trihydroxypimar-8(14)-ene(3),darutigenol(4),darutoside(5)。化合物1的平面结构及相对构型通过波谱学方法确定。
One new ent-pimarane diterpenoid ent-16-nor-3-oxo-pimar-8（14）-en-15-al （1） together with four known diterpenoids kirenol （2）, ent-2-oxo-15,16,19-trihydroxypimar-8（14）-ene （3）, darutigenol （4） and darutoside （5） were isolated from the ethanol extract of Siegesbeckia pubescens. The planar structures and relative configurations of these compounds were elucidated by comprehensive spectroscopic analysis.
基金
supported by the National Natural Science Foundation of China(Grant No.30973628)
the National Science and Technology Project of China(Grant No.2012ZX09103201-022)
关键词
腺梗豨莶
二萜
结构解析
Siegesbeckia pubescens Diterpenoids Structural identification
