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Note | Regular issue | Vol 68, No. 8, 2006, pp.1699-1703
Published online, 23rd June, 2006
DOI: 10.3987/COM-06-10775
An Acylated Cyanidin 3-Rutinoside-7-glucoside with p-Hydroxybenzoic Acid from the Red-Purple Flowers of Campanula medium

Kenjiro Toki, Norio Saito, Megumi Ito, Atsushi Shigihara, and Toshio Honda

*Laboratory of Floriculture, Minami-Kyushu University, 11609 Takanabe, Koyu-gun, Miyazaki 884-0003, Japan

Abstract

A new acylated anthocyanin was isolated from the red-purple flowers of Campanula medium as a major pigment together with a known anthocyanin. The new pigment was determined to be cyanidin 3-O-[6-O-(α-L-rhamnopyranosyl)-β-D-glucopyranosyl]-7-O-{4-[6-O-(4-(6-O-(p-hydroxybenzoyl)-β-D-glucopyranosyl)oxybenzoyl)-β-D-glucopyranosyloxybenzoyl]-β-D-glucopyranoside} based on spectroscopic analyses. The known pigment was also identified to be rubrocampanin, pelargonidin 3-rutinoside-7-(p-hydroxybenzoylglucopyranosyl-p-hydroxybenzoylglucopyranosyl-p-hydroxybenzoylglucopyranoside).