芒果叶化学成分研究Ⅲ

Chemical Constituents Study on the Leaves of Mangifera indica L. (Ⅲ)

摘要:

为了解芒果（Mangifera indica L.）的化学成分，从芒果叶70% 乙醇提取物中分离鉴定了8 个单体化合物，经波谱分析，分别鉴定为：5-（β-D-glucopyranosyloxy）-2-hydroxy benzoic acid methyl ester（1）、methyl salicylate glucoside（2）、对羟基苯甲酸（3）、nikoenoside（4）、（6R，9R）-3-oxo-α-ionol-β-D-glucopyranoside（5）、byzantionoside B（6）、 icariside B₂（7）和2-ethyl-3-methylmaleimideN-β-D-glucopyranoside（8）。化合物1、2、4 ~ 7 均为首次从芒果属中分离得到，化合物8 首次从该种中分离得到，化合物1 的NMR 数据是首次报道。

Abstract:

In the process of continuing to study the chemical constituents from 70% EtOH extract of Mangifera indica leaves, eight compounds were obtained, which were identified as 5-(β-D-glucopyranosyloxy)-2-hydroxybenzoic methyl ester (1), methyl salicylate glucoside (2), p-hydroxybenzoic acid (3), nikoenoside (4), (6R,9R)-3-oxo-α-ionol-β-D-glucopyranoside (5), byzantionoside B (6), icariside B₂ (7), and 2-ethyl-3-methyl-maleimide N-β- D-glucopyrano side (8) by the chemical and physical methods. Among them, 1, 2, and 4-7 were obtained from Mangifera genus for the first time, 8 was isolated for the species for the first time. Meanwhile, the NMR data of 1 was reported here firstly.