Syntheses and absolute configurations of the marine sponge purines (+)-agelasimine-A and (+)-agelasimine-B
作者:Masashi Ohba、Kazuaki Iizuka、Hiroyuki Ishibashi、Tozo Fujii
DOI:10.1016/s0040-4020(97)10120-x
日期:1997.12
The first total syntheses of (+)-agelasimine-A and (+)-agelasimine-B, adenine-related bicyclic diterpenoids isolated from the marine sponge Agelas mauritiana, have been achieved via a highly stereoselective route. On the basis of the present results, the absolute configurations of both alkaloids have been defined as shown in stereoformulas (+)-1a and (+)-1b, respectively.
从海洋海绵Agelas mauritiana分离的(+)-agelasimine-A和(+)-agelasimine-B,与腺嘌呤相关的双环二萜类化合物的第一个总合成已通过高度立体选择性的途径实现。基于目前的结果,已经定义了两种生物碱的绝对构型,分别如立体式(+)- 1a和(+)- 1b所示。