beta-Lactamase inhibitors which are aminoacid esters of 6-alpha- and 6-beta-(hydroxymethyl)pencillanic acid 1,1-dioxides; pharmaceutically-acceptable salts thereof; conventional esters thereof which are hydrolyzable in vivo; bis-methanediol esters thereof; or mixed methanediol esters with said beta-lactamase inhibitors and sulbactam. Pharmaceutical compositions comprising said beta-lactamase inhibitors and a conventional beta-lactam antibiotic, said compositions useful in the treatment of bacterial infections. Compounds useful as intermediates in the synthesis of said beta-lactamase inhibitors. Antibacterial mixed bis-methanediol esters of said aminoacyloxymethyl penicillanic acid 1.1-dioxides and ampicillin or amoxicillin, also useful in the treatment of bacterial infections; and intermediates therefor.
β-内酰胺酶抑制剂,其为 6-α-和 6-β-(羟甲基)青霉烷酸 1,1-二氧 化物的
氨基酸酯;其药学上可接受的盐;其可在体内
水解的常规酯;其双
甲二醇酯; 或与所述β-内酰胺酶抑制剂和
舒巴坦的混合
甲二醇酯。包含所述β-内酰胺酶抑制剂和常规β-内酰胺类抗生素的药物组合物,所述组合物可用于治疗细菌感染。可用作合成所述β-内酰胺酶抑制剂的中间体的化合物。上述
氨基乙酰氧甲基青霉烷酸 1.1-二氧化物和
氨苄西林或
阿莫西林的抗菌混合双
甲二醇酯,也可用于治疗细菌感染;及其中间体。