Two triacylated and tetraglucosylated anthocyanins from Ipomoea asarifolia flowers

Two triacylated and tetraglucosylated anthocyanins derived from cyanidin were isolated from the flowers of Ipomoea asarifolia and their structures elucidated using chemical, GC, MS and NMR methods (1H and 13C, TOCSY-1D, DQF-COSY, DIFFNOE and HMBC). These complex pigments were found to consist of cyanidin 3-O-[2-O-(6-O-E-caffeoyl-β -D-glucopyranosyl)]-{6-O-[4-O-(6-O-E-3,5-dihydroxycinnamoyl-β -D-glucopyranosyl)-E-caffeoyl]-β-D-glucopyranosyl}-5-O-β -D-glucopyranoside and cyanidin 3-O-[2-O-(6-O-E-p-coumaroyl-β -D-glucopyranosyl)]-{6-O-[4-O-(6-O-E-p-coumaroyl-β-D-glucopyranosyl) -E-caffeoyl]-β-D-glucopyranosyl}-5-O-β-D-glucopyranoside. © 2003 Elsevier Ltd. All rights reserved.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

7-O-methylapigeninidin, an anthocyanidin from Sorghum caudatum

A new anthocyanidin was isolated from the grains of Sorghum caudatum and identified as 7-O-methylapigeninidin on the basis of spectral data. This pigment was found in low concentration both in grains and in leaf sheaths.SCOPUS: ar.jinfo:eu-repo/semantics/publishe