金铁锁的新三萜皂甙(英文)  

A New Tritepenoid saponin from Psammosilene tunicoides

作　　者：钟惠民 倪伟[1] 华燕[1] 陈耀祖[1] 陈昌祥[1] 

机构地区：[1]中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室

出　　处：《云南植物研究》2002年第6期781-786,共6页Acta Botanica Yunnanica

基　　金：ProgramgrantedbytheLaboratoryofPhytochemistr,KunmingInstituteofBotany,CAS

摘　　要：从金铁锁 (PsammosilenetunicoidesW .C .WuetC .Y .Wu)根部分离得到 5个齐墩果烷型五环三萜皂苷。它们的结构通过波谱和化学方法分别鉴定为 :3 O β D galactopyranosyl (1→ 2 ) β D glucuronopyranosyl gypsogenin (1) ,3 O β D galactopyranosyl (1→ 2 ) [β D xylopyranosyl (1→ 3) ] β D glucuronopyranosyl gypsogenin (2 ) ,3 O β D galactopyranosyl (1→ 2 ) β D glucuronopyra nosyl gypsogenin 2 8 O β D xylopyranosyl (1→ 4 ) [β D glucopyranosyl (1→ 3) ] α L rhamnopyranosyl(1→ 2 ) β D fucopyranoside (LobatosideI ,3) ,3 O β D galactopyranosyl (1→ 2 ) [β D xylopyranosyl (1→ 3) ] β D glucuronopyranosylgypsogenin 2 8 O β D xylopyranosyl (1→ 4 ) [β D glucopyranosyl (1→ 3) ] α L rhamnopyranosyl(1→ 2 ) β D fucopyranoside (4 ) ,3 O β D galactopyranosyl (1→ 2 ) β D glucuro nopyranosyl gypsogenin 2 8 O β D xylopyranosyl (1→ 4 ) [β D 6 O acetylglucopyranosyl (1→ 3) ] α L rh amnopyranosyl(1→ 2 ) β D fucopyranoside (5 )。其中 5为新化合物 ,1和 2为首次从自然界中分离得到。Five oleanane-type triterpenoid saponins were isolated from the roots of Psammosilene tunicoides W.C.Wu et C.Y.Wu. Their structures were elucidated by spectral and chemical methods as 3-O-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl-gypsogenin(1),3-O-β-D-galactopyranosyl-(1→2)--D-xylopyranosyl-(1→3)]-β-D--β-D-glucuronopyranosyl-gypsogenin(2), 3-O-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl-gypsogenin-28-O-β-D-xylopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→3)]-(-L-rhamnopyranosyl(1→2)-β-D-fucopyranoside(Lobatoside I,3),3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl -(1→3)]-β-D-glucuronopyranosyl-gypsogenin-28-O-β-D-xylopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→3)]-α-L-rhamnopyranosyl(1→2)-β-D-fucopyranoside (4),3-O-β-D-galactopyranosyl-(1→2)-β-D-glucuronopyranosyl-gypsogenin-28-O-β-D-xylopyranosyl-(1→4)-[β-D-6-O-acetyl- glucopyranosyl-(1→3)]-α-L-rhamnopyranosyl(1→2)-β-D-fucopyranoside (5). Among them, compound 5 was a new triterpenoid saponin.

关 键 词：金铁锁 三萜皂甙 石竹科 药用植物 化学成分 

分 类 号：Q946[生物学—植物学]