矮杨梅鲜叶的酚性化学成分

Phenolic Constituents of the Fresh Leaves of Myrica nana

从云南产矮杨梅 (MyricananaCheval.)鲜叶中分离了 10个酚类化合物 ,通过波谱数据鉴定为 :杨梅素、杨梅素 3-O -α -L -阿拉吡喃糖甙、杨梅素 3-O - β -D -半乳糖甙、杨梅甙 (即杨梅素 3-O -α -L -鼠李糖甙 )、山奈酚 3-O - β -D -葡萄糖甙、 (- )表没食子儿茶素 3-O -没食子酸酯、 (- )表儿茶素 3-O -没食子酸酯、原飞燕草素B - 2、原飞燕草素B- 2 3′ -O -没食子酸酯和没食子酸。

Ten phenolic compounds were isolated from the fresh leaves of Myrica nana Cheval. They were identified as myricetin, myricetin 3-O-α-L-arabino-pyranoside, myricetin 3-O-β-D-galactopyranoside, myricitrin (myricetin 3-O-α-L-rhamnopyranoside), kaempferol 3-O-β-D-glucopyranoside, (-)epigallocatechin 3-O-gallate, (-)epicatechin 3-O-gallate, prodelphinidin B-2, prodelphinidin B-2 3-O-gallate and gallic acid, respectively, by means of spectral methods.