Pimarane and cleistanthane diterpenes from velloziaceae: absolute configuration and biomimetic conversion
作者:A.C. Pinto、M.l. Patitucci、R.S. Da Silva、P.P.S. Queiroz、A. Kelecom
DOI:10.1016/s0040-4020(01)91585-6
日期:1983.1
Pimarane and cleistanthanediterpenes isolated from Velloziaceae are shown, by CD studies, to possess the same (5S, 10S) absolute configuration. A biomimetic rearrangement of the pimarane into the cleistanthaneskeleton is described. The structure of a new natural diterpene, cleistantha-8, 11, 13-trien-7-one is also reported.