Synthetic approaches to the polycyclic alkaloid stemofoline
作者:Alison M. Baylis、Michael. P. H. Davies、Eric J. Thomas
DOI:10.1039/b708910d
日期:——
utilised to direct a regioselective remote oxidation of the hydroxylactam 40 using lead tetraacetate, which was accompanied by selective insertion into the closer endo C-H bond to give the tetracyclic ether 41. Lactam 39 was converted into the tricyclic aminoketone 49 by reduction to the aminol 44 using lithium aluminium hydride and reduction of the intermediate, possibly the chloride 46, formed from aminol