A PROCESS FOR TOTAL SYNTHESIS OF FLAVONOID COMPOUNDS AND ISOMERS THEREOF

摘要

TIIG present invention relates to the a process for total synthesis of flavonoid compounds of general formula I and isomers thereof wherein RI and R2 is OH; R3 = H or The present invention particularly relates to the process for preparation and separation of (2S,3S)-taxifolin-6-C-P-D-glucopyranoside (ulmoside A), (2R,3R)-taxifolin-6-C-P-Dglucopyranoside and taxifolin.