NEW FLAVONOIDS FROM THE AERIAL PARTS OF ACONITUM-CHILSANENSE

The studies were carried out to evaluate the constituents in the aeria l part of Aconitum chiisanense (Ranunculaceae). From the butanol fract ion of the methanol extract, kaempferol beta-glucopyranosyl-(1-->2)-al pha-rhamnopyranoside (I), quercetin 3-O-beta-glucopyranoside-7-O-(6-tr ans-caffeoyl) (1-->2)-alpha-rhamnopyranoside (II), kaempferol beta-glu copyranosyl-(1-->2)-alpha-rhamnopyranoside (III), kaempferol beta-gluc opyranosyl-(1-->2)-alpha-rhamnopyranoside (IV), kaempferol beta-glucop yranosyl-(1-->2)-alpha-rhamnopyranoside (V), and kaempferol -beta-gluc opyranosyl(1-->2)-alpha-rhamnopyranoside (VI) were isolated and identi fied on the basis of their physicochemical and spectroscopic evidence (UV, IR, FAB(-)MS, H-1-NMR, C-13-NMR, H-1-H-1 COSY, HMQC and HMBC). Ne w compounds I-VI were named chiisanin (I), chiiribanin (II), chiiribac onin (III), chiirin (IV), chiiricanin (V), and chiirirhamnin (VI), res pectively.