Procyanidin trimers possessing a doubly linked structure from Aesculus hippocastanum
作者:C. Santos-Buelga、H. Kolodzieij、D. Treutter
DOI:10.1016/0031-9422(94)00637-9
日期:1995.1
identification by UV/CRD absorbance ratios, structural examination of the phenolic metabolites of the fruit shells of Aesculus hippocastanum has led to the isolation and characterization of the uncommon procyanidin trimers, epicatechin-(4β,8;2β,7)-catechin-(4β,8)-epicatechin, epicatechin-(4α,8)-epicatechin-(4β,8;2β,7)-epicatechin, epicatechin-(4β,8)-epicatechin-(4β,8;2β,7)-epicatechin and epicatechin-(4 β
摘要 在通过 UV/CRD 吸光度比进行初步的 HPLC 峰识别后,对海马七叶树果壳酚类代谢物的结构检测导致了罕见的原花青素三聚体表儿茶素-(4β,8;2β,7) 的分离和表征-儿茶素-(4β,8)-表儿茶素, 表儿茶素-(4α,8)-表儿茶素-(4β,8;2β,7)-表儿茶素, 表儿茶素-(4β,8)-表儿茶素-(4β,8;2β, 7)-表儿茶素和表儿茶素-(4 β ,8;2 β ,7)-表儿茶素-(4 α ,8)- ent -epicatechin,具有双联单元,与表儿茶素-(4β,6)-表儿茶素-( 4β,6)-表儿茶素。其中,前两个提到的化合物代表新的天然代谢物。通过分析光谱数据( 1 HNMR、FAB-质谱、CD)和化学降解来确定结构。