Three salts of labdanic acids, named as magnesium andrographate, disodium andrographate and dipotassium andrographate 19-O-β-D-glucoside were isolated from the hydrophilic extract of Andrographis paniculata Nees. (Acanthaceae), together with guanosine, uridine, 6-epiharpagide, procumbide, violanthin and apigenin 7-O-β-D-glucoside. Their structures were determined by spectroscopic analysis and chemical transformation.
穿心莲中的三个二萜酸盐
钟德新 宣利江 徐亚明* 白东鲁
（中国科学院上海药物研究所，上海200031）
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