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。
从石竹科植物金铁锁 (PsammosilenetunicoidesW .C .WuetC .Y .Wu)根部分离得到4个齐墩果酸型五环三萜皂苷。它们的结构通过波谱和化学方法分别鉴定为 :3 O β D galac topyranosyl (1→ 2 ) β D 6 O methylglucuronopyranosyl quillaicacid (1) ,3 O β D galactopyranosyl (1→ 2 ) [β D xylopyranosyl (1→ 3) ] β D glucuronopyranosyl quillaicacid (2 ) ,3 O β D galactopyrano syl (1→ 2 ) [β D xylopyranosyl (1→ 3) ] β D 6 O methylglucuronopyranosyl quillaicacid (3) ,3 O β D galactopyranosyl (1→ 2 ) [β D xylopyranosyl (1→ 3) ] β D 6 O ethylglucuronopyranosyl quillaicacid(4 )。其中 1为木鳖子中发现的次甙 ,3和 4为新化合物。
Two new tirucallane-type triterpenoid saponins, Sapimukoside A (1) and Sapimukoside B (2), were isolated from the roots of Sapindus mukorossi Gaertn. On the basis of spectroscopic and chemical evidence, their structures were elucidated to be 3-O-alpha-L-rhamnopyranosyl-(1-->2)-[alpha-L-arabinopyranosyl-(1-->3)]-beta-D-glucopyranosyl-21, 23R-epoxyl tirucall-7, 24R-diene-3beta, 21-diol (1) and 3-O-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranosyl-21, 23R-epoxyl tirucall-7, 24R-diene-3beta, 21-diol (2).
