Chemical constituents from the leaves of crataegus pinnatifida Bge. var. major N.E.Br
Zhang, P.C.; Xu, S.X.
Yao Xue Xue Bao 36(10): 754-757
2001
ISSN/ISBN: 0513-4870 PMID: 12579975 Document Number: 526199
To study the chemical constituents in the leaves of Crataegus pinnatifida Bge. var. major N.E.Br.. Compounds were isolated by using porous resin, silica gel, polyamide chromatographic techniques etc. Their structures were elucidated by chemical and spectroscopic methods. Eight compounds were identified as pinnatifin I (1), quercetin (2), 3-O-beta-D-glucopyranosyl quercetin (3), 3-O-beta-D-galacopyranosyl quercetin (4), 3-O-beta-D-glucopyranosyl (6-->1)-alpha-L-rhamnosyl quercetin (5), 3-O-beta-D-galacopyranosyl (6-->1)-alpha-L-rhamnosyl quercetin (6), kaempferol (7), 7-O-alpha-L-rhamnosyl-3-O-beta-D- glucopyranosyl kaempferol (8). Compound 1 is a new compound. Compound 8 was isolated from this plant for the first time.