CHAMICAL CONSTITUENTS FROM THE LEAVES OF CRATAEGUS PINNATIFIDA BGE. VAR. MAJOR N.E.Br.

AIM To study the chemical constituents in the leaves of Crataegus pinnatifida Bge.var.major N.E.Br.. METHODS Compounds were isolated by using porous resin, silica gel, polyamide chromatographic techniques etc. Their structures were elucidated by chemical and spectroscopic methods. RESULTS Eight compounds were identified as pinnatifin I (1), quercetin (2),3-O-β-D-glucopyranosyl quercetin (3),3-O-β-D-galacopyranosyl quercetin (4),3-O-β-D-glucopyranosyl (6→1)-α-L-rhamnosyl quercetin (5),3-O-β-D-galacopyranosyl (6→1)-α-L-rhamnosyl quercetin (6), kaempferol (7),7-O-β-D-rhamnosyl3-O-β-D-glucopyranosyl kaempferol (8). CONCLUSION Compound 1 is a new compound. Compound 8 was isolated from this plant for the first time.