Bekker Madelyn, Bekker Riaan, Brandt Vincent E
Department of Chemistry, University of the Free State, Bloemfontein, South Africa.
Phytochemistry. 2006 Apr;67(8):818-23. doi: 10.1016/j.phytochem.2006.01.015. Epub 2006 Feb 21.
Two flavonoid glycosides, 7-O-beta-D-xylopyranosyl-epicatechin and epicatechin-(4beta-->8)-7-O-beta-D-xylopyranosyl-epicatechin both as their acetate and methyl ether acetate derivatives and a miscellaneous flavan Epicatechin-(7,8-bc)-9beta-(3-methoxy-4-acethoxyphenyl)-dihydro-2(3H)-pyranone as its acetate derivative were isolated from the bark of Guibourtia coleosperma. Their structures were established by spectroscopic methods.
从可乐豆木的树皮中分离出两种黄酮苷，即7-O-β-D-吡喃木糖基表儿茶素和表儿茶素-(4β→8)-7-O-β-D-吡喃木糖基表儿茶素，以及它们的乙酸酯和乙酸甲酯醚衍生物，还有一种杂黄酮表儿茶素-(7,8-bc)-9β-(3-甲氧基-4-乙酰氧基苯基)-二氢-2(3H)-吡喃酮的乙酸酯衍生物。通过光谱方法确定了它们的结构。
