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[Studies on constituents in Uncaria macrophylla Wall]
1Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
Abstract
Objective:
To study the chemical constituents of Uncaria macrophylla.
Method:
Compounds were isolated by Columu Chromatography, and the structures were identified by NMR spectral data and other methods.
Result And Conclusion:
Six compounds were isolated and identified as ursolic acid, 3 beta-6 beta-23-trihydroxyurs-12-en-28-oic acid, 3 beta, 6 beta, 19 alpha-trihydroxyurs-12-en-28-oic acid, epicatechin, beta-sitosterol and daucosterin. All the compounds were isolated for the first time from the plant.