Urs-12-ene-27,28-dioic acid,3-[(6-deoxy-β-D-glucopyranosyl)oxy]-27-β-D-glucopyranosyl ester,(3β)-

Zygophyloside β

喹诺酸-3-β-O-(β-D-吡喃异鼠李糖基)-(27→1)-β-D-吡喃葡萄糖基酯

Quinovic acid-3-β-O-(β-D-quinovopyranosyl)-(27→1)-β-D-glucopyranosyl ester

794.98

mp200℃(分解),[α]20/D+34.09°(c=0.088,甲醇)。UV λmax(MeOH)nm:201.2(end absorption)。IR γma(KBr)cm\-1:3650～2400(OH of C00H ＆ Sugars),1725(C=O of ester),1700(C=O of COOH),1078(C-O)。FABMSm/z:793(M-H)-,647([M-H]-146)-,631([M-H]-162)-,615([M-H]-178)-,603(647-44)-,587(631-44)-,571(615-44)-,441,425。1HNMR。13CNMR。

抗炎作用。对角叉菜胶诱导的大鼠脚趾水肿,口服本品20mg/kg,在3小时抑制33%炎症反应。

三萜甙 triterpenoidal glycoside

1.茜草科(Rubiaceae) 绒毛钩藤* Uncaria tomentosa(Willd.)DC.根皮(收率:0.015%) 2.蒺藜科(Zygophyllaceae) 灌丛霸王* Zygophyllum dumosum茎(收率:0.00053%) 邻近霸王* Zygophyllum propinquum Decne.(收率:0.00018%)

133084-07-8

《植物活性成分辞典》

C42H66O14