Synthesis of carbacephem antibiotics: synthesis via dieckmann reaction using phenyl esters to direct the regioselectivity of the cyclization
作者:Bill G. Jackson、John P. Gardner、Perry C. Heath
DOI:10.1016/s0040-4039(00)97052-7
日期:1990.1
β-Ketoesters useful for elaboration to carbacephems were synthesized from a variety of enantiomerically pure diesters. Use of phenyl esters to direct the regioselectivity was demonstrated.