Rearrangement spinal en serie a/b : conversion du lithocholate de methyle en derives du d-homoandrostane
作者:C. Aubert、J.P. Bégué、D. Bonnet-Delpon
DOI:10.1016/s0040-4020(01)96368-9
日期:1985.1
A new backbonerearrangement is observed in A/B cis methyl lithocholate derivatives. It is initiated from the C-3 carbon either by dehalogenation of the chloroesters 1 by AgSbFg6 or by the action of the triflic anhydride on the si1y1ated ether 2. This rearrangement leads to methyl diacholenate 3 and new lactones in D-homoandrostane series 5 and 6. The differences of behaviour between A/B cis and A/B