作者:Marina Della Greca、Antonio Fiorention、Pietro Monaco、Lucio Previtera
DOI:10.1016/s0031-9422(00)90659-9
日期:1994.3
Abstract A new triterpene, cycloart-23Z-enfe-3β,25-diol and other oxygenated cycloartanes have been isolated from Juncus effusus. The configurations at C-24 of the epimeric 24,25-epoxycycloartan-3β-ols, cycloart-25-ene-3β,24-diols and cycloartane-3β,24,25-triols have been attributed on the basis of chemical correlations. The 1H and 13C NMR chemical shifts of the 24R- and 24S-stereomers are also reported
摘要 从 Juncus effusus 中分离到了一种新的三萜、cycloart-23Z-enfe-3β,25-diol 和其他含氧环artanes。差向异构 24,25-epoxycycloartan-3β-ols、cycloart-25-ene-3β,24-diols 和 cycloartane-3β,24,25-triols 在 C-24 的构型是基于化学相关性的。还报告了 24R-和 24S-立体异构体的 1H 和 13C NMR 化学位移。