Chemical constituents from Hedyotis cryptantha.

Eleven known compounds were isolated from the whole plant of Hedyotis cryptantha .On the basis of spectroscopic data, their structures were identified as asperuloside (1), asperulosidic acid (2), asperulosidic acid methyl ester (3), asperulosidic acid ethyl ester (4 ), 3,4-dihydro-3-methoxy asperuloside (5), kaempferol (6), kaempferol 3,7-di-O -β-D-glucoside (7), kaempferol 3-O -β-D-galactopyranosyl- (1 → 3) -β-D-galactopyranoside (8), ursonic acid (9), stigmasterol (10), and β-sitosterol (11) .All of these compounds were isolated from this plant for the first time, while compounds 7 and 8 were found from the genus Hedyotis for the first time. [ABSTRACT FROM AUTHOR]