Synthesis and antibacterial evaluation of 1β-methyl-2-[5-(1-methoxyimino-2-substituted sulfonamide ethyl)pyrrolidin-3-ylthio]carbapenems and their related compounds

The synthesis of a new series of 1β-methylcarbapenems having methoxyimine and substituted sulfonamide moieties is described. Their in vitro antibacterial activities against both Gram-positive and Gram-negative bacteria were tested and the effect of substituents on the pyrrolidine ring was investigated. A particular compound (IIIc) having methylaminosulfonamide moiety showed the most potent antibacterial activity.

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