STUDIES ON THE CONSTITUENTS OF CHENOPODIUM PALLIDICAULE (CANIHUA) SEEDS - ISOLATION AND CHARACTERIZATION OF TWO NEW FLAVONOL GLYCOSIDES

摘要

Two new flavonol triglycosides have been identified from the seeds of Chenopodium pallidicaule. Their structures were established as isorhamnetin 3-O-beta-D-apiofuranosyl(1-->2)-O-[alpha-L-rhamnopyranosyl(1-->6)]-beta-D- glucopyranoside and quercetin 3-O-beta-D-apiofuranosyl(1-->2)-O-[alpha-L-rhamnopyranosyl (1-->6)]-beta-D-galactopyranoside. The known compounds quercetin 3-(2(G)-beta-D-apiosyl)rutinoside, 3-(2(GAL)-alpha-L-rhamnosyl)robinobioside, 3-rutinoside, 3-robinobioside, isorhamnetin 3-(2(GAL)-alpha-L-rhamnosyl) robinobioside, 3-rutinoside, 3-robinobioside, and kaempferol 3-robinobioside were also found. All structures were elucidated by chemical and spectroscopic methods.