Tannins and Related Compounds. XCIII. : Occurrence of Enantiomeric Proanthocyanidins in the Leguminosae Plants, Cassia fistula L. and C. javanica L.

Yoshiki KASHIWADA; Hiroyuki IIZUKA; Keiko YOSHIOKA; Rong-Fu CHEN; Gen-ichiro NONAKA; Itsuo NISHIOKA

doi:10.1248/cpb.38.888

柏田良樹, 飯塚博之, 吉岡桂子, 陳栄福, 野中源一郎, 西岡五夫

著者情報

キーワード: Cassia fistula, Cassia javanica, Leguminosae, enantiomerism, enantiomeric proanthocyanidin, 2S-flavan-3-ol, (+)-epiafzelechin, (+)-epicatechin, chiral resolution HPLC

ジャーナルフリー

1990 年 38 巻 4 号 p. 888-893

DOI https://doi.org/10.1248/cpb.38.888

詳細

抄録

Proanthocyanidins containing flavan-3-ol (epiafzelechin and epicatechin) units with an abnormal 2S-configuration have been isolated from the pods of Cassia fistula L. and the bark of C. javanica L. (Leguminosae), together with common flavan-3-ols and proanthocyanidins The structures of these compounds have been established on the basis of chemical and spectroscopic evidenve. In addition, the flavan-3-ols and proanthocyanidins obtained from C. fistula have been found to be partly racemic, and the proportions of each enantiomer have beem determined by high-performance liquid chromatography using an optical resolution column.

責任著者(Corresponding author)

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