Stereospecific and non-hazardous syntheses of and -3-phenoxyacetamido-4-(2-acetoxy-1,1-dimethylethyl)-azetidin-2-ones-key intermediates for the synthesis of 6-amido-1,1-dimethyl-carbapen-2-ems
Stereospecific and non-hazardous syntheses of and -3-phenoxyacetamido-4-(2-acetoxy-1,1-dimethylethyl)-azetidin-2-ones-key intermediates for the synthesis of 6-amido-1,1-dimethyl-carbapen-2-ems