摘要
前已报道[1,2]葫芦科(Cucurbitaceae)植物假贝母(Bolbostemma paniculatum[Maxim]Franquet)鳞茎土贝母中四个三萜皂苷土贝母苷甲、乙、丙、丁的提取与分离以及土贝母苷甲的结构研究.
The new glncosides tubeimosideⅡ,Ⅲ,Ⅳ(1,4,8)isolated from the bulbs of Bolbostemma paniculatum Maxim Franquet(Cucurbitaceae)were characterized by spectral analyses and chemical degradations.TubeimosideⅡandⅢare two novel macrocyclic saponins with a dicrotalic acid moiety bridging between the two sugar chains,and tubeimosideⅣis 3-O-[-α-L-arabinopyranosyl(1→2)-β-D-glucopyranosyl]-3β,7β,18,20,26-pentahydroxy-(20S)-dammar-24-ene,the only tetracyclic triterpenoid saponin isolated from B.paniculatum.
出处
《化学学报》
SCIE
CAS
1988年第4期409-411,共3页
Acta Chimica Sinica
