Abstract

A novel dimeric alkylresorcinol derivative, manilkzapotane (1), along with seven known compounds, lupeol acetate (2), lupeol (3), arjunolic acid (4), ergosterol peroxide (5), taraxerol (6), hederagonic acid (7), and glochidiol (8) were isolated from the stem bark of Manilkara zapota. Their structures were determined on the basis of spectroscopic data. DFT-NMR chemical shift calculations and a modified probability (DP4+) method were applied to define the relative configuration of 1. To the best of our knowledge, this represents the first isolation of a dimeric alkylresorcinol derivative from the Sapotaceae family.

摘要

一种新型二聚烷基间苯二酚衍生物，manilkzapotane ( 1 )，以及七种已知化合物，醋酸羽扇豆醇 ( 2 )、羽扇豆醇 ( 3 )、阿朱酚酸 ( 4 )、过氧化麦角甾醇 ( 5 )、蒲公英 ( 6 )、常春藤酸 ( 7 ) , 和Glochidiol ( 8 ) 是从Manilkara zapota的茎皮中分离出来的。它们的结构是根据光谱数据确定的。应用 DFT-NMR 化学位移计算和改进的概率 (DP4+) 方法来定义1. 据我们所知，这是首次从 Sapotaceae 科中分离出二聚烷基间苯二酚衍生物。