[Chemical Constituents From Rhus chinensis Fruit Dregs]

To isolate and elucidate the constituents from the fruit dregs of Rhus chinensis.

The constituents were isolated and purified by chromatography on silica gel,Sephadex LH-20, RP-C18 gel and recrystallization. The structures were elucidated on the basis of the chemical evidence and spectroscopic data.

Ten compounds were obtained: β-sitosterol (1), morolic acid (2), (2S) -1-O-heptatriacontanoyl glycerol (3), α-monpalmitin (4), palmitic acid (5), gallic acid (6), methyl gallate (7), ethyl gallate (8), propyl gallate (9), and protocatechuic acid (10).

Compounds 3, 4 and 9 are isolated from the plants of Rhus genus for the first time.