Li B L, Chen S N, Shi Z X, Chen Y Z
National Laboratory of Applied Organic Chemistry, Lanzhou University, People's Republic of China.
Phytochemistry. 2000 Apr;53(8):855-9. doi: 10.1016/s0031-9422(99)00578-6.
Two kaurenoids, taibairubescensins A and B, were isolated from the ethanol extract of the leaves and branches of Isodon rubescens. Their structures are designated as 2 beta, 3 beta-diacetoxy-11 beta, 13 alpha-dihydroxy-ent-kaur-16-en-15-one and 3 beta, 11 beta-diacetoxy-2 beta, 6 alpha-dihydroxy-ent-kaur-16-en-15-one, respectively, on the basis of detailed spectroscopic analyses.
从溪黄草叶和枝的乙醇提取物中分离出两种贝壳杉烷型二萜，分别为太白润楠素A和太白润楠素B。基于详细的光谱分析，它们的结构分别被确定为2β,3β - 二乙酰氧基 - 11β,13α - 二羟基 - 对映 - 贝壳杉 - 16 - 烯 - 15 - 酮和3β,11β - 二乙酰氧基 - 2β,6α - 二羟基 - 对映 - 贝壳杉 - 16 - 烯 - 15 - 酮。
