"Cephalosporin" compounds

.beta.-lactam compounds

.beta.-lactam compounds

.beta.-Lactamase inhibitors and process for their preparation

2 &bgr;-substituted-6-alkylidene penicillanic acid...

2-quaternary heteroarylalkylthio carbapenems having an acid moie

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

7-vinylidene cephalosporins and methods of using the same

Acetoxymethyl penam compounds as .beta.-lactamase inhibitors

Amoxicillin derivatives

Antibacterial agents

Antibacterial agents

Antibacterial agents

Antibacterial agents