作者:Katsuyoshi Matsunami、Hideaki Otsuka、Yoshio Takeda
DOI:10.1248/cpb.59.1274
日期:——
led to the isolation of five new glycosides, named myrseguinosides A-E (1-5), together with eight known compounds (6-13). The absolute structures of the new glycosides were elucidated by spectroscopic and chemical analyses to be a monoterpene glucoside (1), two flavonol glycosides (2, 3), and two oleanane-type triterpene saponins (4, 5). Myrseguinosides B (2), D (4), and E (5) exhibited 1,1-diphenyl-2-picrylhydrazyl
对Myrsine seguinii(Myrsinaceae)干果的1-BuOH可溶性级分进行化学研究后,分离出了五种新糖苷,称为Myrseguinosides AE(1-5),以及八种已知化合物(6-13)。通过光谱和化学分析阐明了新糖苷的绝对结构,其为单萜糖苷(1),两个黄酮醇苷(2、3)和两个齐墩果烷型三萜皂苷(4、5)。肉豆蔻苷B(2),D(4)和E(5)分别具有1,1-二苯基-2-吡啶并肼基(DPPH)清除自由基和抑制人类癌细胞生长的活性。