Approaches to installing a N-gem-dimethylmethylene-2-oxazolyl group and application to the synthesis of a second generation HIV protease inhibitor
作者:Norihiro Ikemoto、Ross A. Miller、Fred J. Fleitz、Jinchu Liu、Daniel E. Petrillo、Joseph F. Leone、Joseph Laquidara、Benjamin Marcune、Sandor Karady、Joseph D. Armstrong、Ralph P. Volante
DOI:10.1016/j.tetlet.2005.01.103
日期:2005.3
Two syntheses of the title compound I were developed based on different approaches for installing the oxazole ring moiety. Formation and dehydration of ketoamide was initially used and scaled up to afford I on several kilogram scale, then oxazolyl anion/iminium coupling reaction was developed for a more convergent approach. (C) 2005 Elsevier Ltd. All rights reserved.