Abstract
Four new acylated delphinidin 3,7-glycosides were isolated from the blue-violet flowers of Consolida armeniaca as major anthocyanin pigments. The first pigment was based on delphinidin 3,7-diglucoside and was identified as delphinidin 3-O-[6-O- (malonyl)-β- d-glucopyranoside ]-7-O-[6-O-(4-O(6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-p- hydroxybenzoyl)-β- d- glucopyranoside] by spectral methods. The other three acylated anthocyanins were based on delphinidin 3-glucoside-7-sophoroside. The second pigment was determined to be delphinidin 3-O-[6-O- (malonyl)-β- d-glucopyranoside ]-7-O-[2-O-(β- d glucopyranosyl)-6-O-(4-O-(6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-p- hydroxybenzoyl)-β- d- glucopyranoside] . The third pigment was elucidated to be delphinidin 3-O-[6-O- (malonyl)-β- d-glucopyranoside ]-7-O-[2-O-(6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-6-O-(4-O-(6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-p- hydroxybenzoyl)-β- d- glucopyranoside] , and the fourth as delphinidin 3-O-[6-O- (malonyl)-β- d-glucopyranoside ]-7-O- glucopyranosyl[(2-O-(6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-6-O-(4-O- (6-O-(p- hydroxybenzoyl)-β- d- glucopyranosyl)-p- hydroxybenzoyl)-β- d- glucopyranoside] .
Published Version
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