从中药三棱的正丁醇提取物中分得2个水溶性成分，经理化常数和波谱分析鉴定了它们的结构，分别为△5-胆酸甲酯毛-3-O-β-D-葡萄糖难酸-（1→4）－α－L-鼠李糖式（Ⅰ）；△5-胆酸甲酯-3－O--β-D-葡萄糖式（Ⅱ）。Ⅰ和Ⅱ为2个新化合物。

Twonewcompounds and if were isolated from Sparganium stoloniferum Buch-Ham..On the basis of chemical evidences and spectral analysis(UV,IR,¹H and ¹³CNMR,FAB-MS),the structure of I was dated as5-ene-methyl-cholate-3-O-(3-D-glucuronopyranosyl一(1~4）-a-L-rhamnopyranoside, was eluci-5-ene-methyl-cholate-3-O-(3-D-glucopyranoside.