6-(1-acyl-1-hydroxymethyl)penicillanic acid derivatives
6-(Aminoacyloxymethyl)penicillanic acid 1,1-dioxides as beta-lac
6-(Aminomethyl)penicillanic acid 1,1-dioxide esters and intermed
6-(substituted)methylenepenicillanic and 6-(substituted)hydroxym
6-beta-Halopenicillanic acid 1,1-dioxides as beta-lactamase inhi
6-substituted penicillanic acid 1,1-dioxide compounds
6.beta.-substituted penicillanic acids as beta-lactamase inhibit