Among several anthocyanins detected in the flowers of Ipomoea asarifol
ia, two acylated anthocyanins were isolated and studied using chemical
, GC, mass spectrometric and extensive NMR methods (TOCSY-1D, DQF-COSY
and HMBC measurements). The first anthocyanin was identified as cyani
din a-D-glucopyranoside]-5-O-[beta-D-glucopyranoside], and the new str
ucture as cyanidin pyranosyl)-6-O-(E-caffeoyl)-beta-Dglucopyranoside]
-5-O-[beta-D-glucopyranoside]. (C) 1998 Published by Elsevier Science
Ltd. All rights reserved.