Diastereoselective syn-epoxidation of 2-alkyl-4-enamides to epoxyamides: Synthesis of the Merck HIV-1 protease inhibitor epoxide intermediate
作者:P.E. Maligres、V. Upadhyay、K. Rossen、S.J. Cianciosi、R.M. Purick、K.K. Eng、R.A. Reamer、D. Askin、R.P. Volante、P.J. Reider
DOI:10.1016/0040-4039(95)00273-f
日期:1995.3
Reaction of 2-alkyl-4-enamides 2, 9-15 with NIS and aqueous sodium bicarbonate results in the diastereoselective formation of the corresponding iodohydrins 3, 16-22 with essentially no iodolactone by-product. This methodology has been successfully employed for the synthesis of the epoxide intermediate 4 of the orally active Merck HIV-I protease inhibitor L-735,524.