作者:Xun Liao、Lisheng Ding、Shulin Peng
DOI:10.1016/s0031-9422(97)00416-0
日期:1998.1
Four new ent-kaurenoids, leucophyllin A-D, were isolated from the aerial part of Rabdosia leuco-phylla. Their structures were elucidated on the basis of spectroscopic and chemical evidence as ent-1 beta-hydroxy-3 alpha,7 alpha,11 alpha- triacetoxykaur-16-en-6,15-dione, ent-1 beta,11 alpha-dihydroxy-3 alpha,7 alpha-diacetoxykaur-16-en-6,15-dione,ent- 1 beta,11 alpha,15 alpha-trihydroxy-3 alpha,7 al
从 Rabdosia leuco-phylla 的地上部分分离出四种新的 ent-kaurenoids,leucophyllin AD。它们的结构在光谱和化学证据的基础上被阐明为 ent-1 beta-hydroxy-3 alpha,7 alpha,11 alpha-triacetoxykaur-16-en-6,15-dione, ent-1 beta,11 alpha-dihydroxy -3 alpha,7 alpha-diacetoxykaur-16-en-6,15-dione,ent- 1 beta,11 alpha,15 alpha-trihydroxy-3 alpha,7 alpha-diacetoxykaur-16-en-6-one 和 ent- 6 beta,11 alpha-dihydroxy-1 beta,3 alpha,7 alpha-triacetoxykaur-16-en-15-one。白叶酸