Synthesis of the 3-acetoxy-7-oxo-1-azabicyclo [3.2.0] hept-2-ene-2-carboxylate system
作者:John H Bateson、Stephen C.M Fell、Robert Southgate
DOI:10.1016/s0040-4039(00)85383-6
日期:1986.1
derived ethanethiol adducts (4–6) gave the corresponding 3-acetoxy-3-ethylthio derivatives (7–9). Oxidation to sulphone and elimination of ethylsulphinic acid furnished the 3-acetoxy-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate ester (12). Alternatively, elimination of acetic acid from (7) and (8) provided a new route to alkylthiocarbapenems.