Hancock,W.S. et al., Australian Journal of Chemistry, 1977, vol. 30, p. 1093 - 1107
作者:Hancock,W.S. et al.
DOI:——
日期:——
Preparation and optical rotatory dispersion study of tetracyclic diterpenoid intermediates
作者:J.B. Nabors、D.H. Miles、B. Kumar、L.H. Zalkow
DOI:10.1016/s0040-4020(01)90742-2
日期:1971.1
As part of a syntheticapproach to the diterpenoid alkaloids, ajaconine and atidine, a number of optically active tetracyclic intermediates possessing a carbonyl group at C-7 and a bicyclo[2.2.2.]octane C, D-ringsystem was obtained. The ORD curves of these compounds provided interesting insight into the effect of C, D ring substituents on the conformation of the B-ring. A pentacyclic unsaturated ketolactam