A new triterpenes isolated from leaves of Phyllanthus acidus / 中草药

ABSTRACT

Objective: To investigate the chemical constituents of the leaves of Phyllanthus acidus. Methods: All compounds were isolated by silica gel and Sephadex LH-20 gel column chromatographies as well as semi-preparative HPLC, and their structures were elucidated on the basis of physicochemical properties and spectral data. Results: Ten compounds were isolated and identified as 3α-cinnamoyloxyurs-20(29)-en-18β-ol (1), phyllanthol (2), maslinic acid (3), ovoideal E (4), quercetin-3-rhamnoside (5), 4-hydroxybenzoic acid (6), methyl 4-hydroxyphenylacetate (7), 4-O-(β-glucopyranosyloxy)-benzoic acid (8), thioacetic anhydride (9), L-pyroglutamic acid (10). Conclusion: Compound 1 is a new compound named as phyllanacidol B, and compounds 3-10 are obtained from P. acidus for the first time.