白头树化学成分研究

Chemical Constituents from the Twigs of Garuga forrestii

摘要:

利用多种层析方法，从白头树(Garuga forrestii)树枝95％的乙醇提取物中分离得到10个化合物，通过理化性质和波谱分析，分别鉴定为13α,14β,17α-羊毛甾-7,24-二烯-1β,3β-二醇(1)、豆甾-5-烯-3β,7α-二醇(2)、豆甾-5-烯-3β,7β-二醇(3)、豆甾-3β,6α-二醇(4)、β-谷甾醇(5)、儿茶素(6)、(Z)阿魏酸二十四烷基酯(7)、(E)阿魏酸二十四烷基酯(8)、4-羟基-3-甲氧基苯甲酸(9)和1-甲氧基-2,3苯并环戊烷(10)。这些化合物均为该种植物首次报道。

Abstract:

Ten compounds were isolated from the 95% ethanol extract of the twigs of Garuga forrestii. On the basis of the spectral data, they were characterized to be 13α,14β,17α-lanosta-7,24-diene-1β,3β-diol (1), stigmasta-5-ene-3β,7α-diol (2), stigmasta-5-ene-3β,7β-diol (3), stigamastane-3β,6α-diol (4), β-sitosterol (5), catechin (6), (Z)-ferulic acid tetracosyl ester (7), (E)-ferulic acid tetracosyl ester (8), 4-hydroxybenzoic-3-methoxy acid (9), and 4-methoxyindane (10). All compounds were isolated from this species for the first time.