- 作者: 蔡芳曄 ; 李水盛 ; 陳益昇
- 作者服務機構: 台灣大學藥學系
- 中文摘要: Centrifugal partition chromatography, Sephadex LH-20 and flash chromatography were applied to separate flavonoids and coumarins from Berchemia formosana. This first chemical investigation led to the isolation of ten compounds. Based on spectral analysis, they were determined to be quercetin, rutin, (+)-dihydroquercetin, (+)-dihydrokaempferol, naringenin, 2-hydroxy-naringenin (6), 2-hydroxy-naringenin- 7-O-.beta.-glucoside (7), (-)-catechin, (-)-gallocatechin and scopoletin. Among these, 7 is a novel natural product and was found to be composed of two inseparable diastereoisomers. The presence of the rare 2- hydroxyflavanones 6 and 7 in B. formosana is of interest for chemotaxonomy.
- 英文摘要: --
- 中文關鍵字: Berchemia Formosana; Flavonoid; Hydroxynaringenin; Chemotaxonomy; Centrifugal Partition Chromatography (Cpc)
- 英文關鍵字: 黃酮素;離心分配層析法;向化性