| 摘要 |
Certain 2-azacycloalkylthio-2-penem-3-carboxylic acid compounds are useful as antibacterials for treating mammals and have the formula <IMAGE> I or a pharmaceutically acceptable salt thereof, wherein: R is <IMAGE> A is alkylene having 2-4 carbon atoms, alkylene having 2-4 carbon atoms wherein a carbon atom has an oxo substituent or alkylene having 2-4 carbon atoms wherein a methylene is replaced by oxygen, S(O)m, or N-R3; B is carbonyl, thiocarbonyl, methylene or imine; R1 is hydrogen or forms an ester group which is hydroyzed in vivo; R2 is hydrogen, formyl, alkylcarbonyl, N-alkylaminocarbonyl, N-alkylaminosulfonyl, aminosulfonyl, aminocarbonyl, alkoxycarbonyl having 2-5 carbon atoms, alkylsulfonyl, alkyl, or alkyl substituted by aminocarbonyl, alkyl-S(O)m-, hydroxyl, amino, alkylcarbonylamino, formamido or alkylsulfonylamino, wherein each alkyl has 1-4 carbon atoms; R3 is hydrogen, methyl, formyl, methylcarbonyl or methylsulfonyl; alk is alkylene having 1-4 carbon atoms; n is zero or one; and m is zero, 1 or 2. |
