Monosulfactams

Details Monosulfactams Monosulfactams

C - Chemistry, Metallurgy

07

C

260/520.1, 260/4

C07C 239/20 (2006.01) C07D 277/38 (2006.01)

Patent

CA 1327813

ABSTRACT This invention relates to compounds having the formula: Image , wherein A1 is hydrogen or a carboxyl protecting group and R3 and R4 are the same or different and each is hydrogen or alkyl of 1 to 3 carbon atoms, which are useful as intermediates in the preparation of monocyc- lie .beta.-lactam antibiiotics of the formula: Image and pharmaceutically acceptable salts thereof, which possess antibacterial activity.

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