6-Acylaminopenicillancyloxymethyl esters and 1-(6-acyl- aminopenicillanoyloxy)ethyl esters of 2-beta-acetoxymethyl-2- alpha-methyl-(5R)penam-3-alpha-carboxylic acid 1,1-dioxide are useful as antibacterial agents. The 6-aminopenicillanoyloxymethyl ester, the 1-(6-aminopenicillanoyloxy)ethyl ester and certain other mono-substituted methyl and ethyl esters of 2-beta-acetoxymethyl-2-alpha-methyl-(5R)penam-3-alpha- carboxylic acid 1,1-dioxide are useful intermediates to the aforesaid antibacterial agents.
2-beta-acetoxymethyl-2-α-methyl-(5R)penam-3-α-carboxylic acid 1,1-dioxide 的 6-酰
氨基青霉烷氧基甲酯和 1-(6-酰
氨基青霉烷氧基)
乙酯可用作抗菌剂。 2-beta-acetoxymethyl-2-α-methyl-(5R)penam-3-α-carboxylic acid 1,1-dioxide 的 6-
氨基青霉烷氧基甲酯、1-(6-
氨基青霉烷氧基)
乙酯和某些其他单取代甲基和
乙酯是上述抗菌剂的有用中间体。