| 摘要 |
PURPOSE:Anhydropenicillin derivs. I(R<1> is H; R<2> is H or acyl; R<1> together with R<2> forms dibasic acyl gp.; A is H, alkoxy acyloxy, carbamoyloxy, or azide; B is methyl, halogenomethyl, OH, alkoxy, halogenomethyl, etc.), e.g. Z or E5R, 6R-2-(1-acetoxymethylethylidene)-6-phenoxyacetamido-3,7-dioxo-4-thia1- azabicyclo [3,2,0] heptane. |
