Penam derivatives and preparation thereof

Details Penam derivatives and preparation thereof Penam derivatives and preparation thereof

C - Chemistry, Metallurgy

07

D

260/110

C07D 499/00 (2006.01)

Patent

CA 1059992

ABSTRACT OF THE DISCLOSURE Certain novel 6-acylamino-2,2-dimethyl-3-(5-tetrazolyl) penam derivatives, and salts thereof; their use as broad-spec- trum antibacterial agents; and methods for their preparation. The preparation includes conversion of a 3-COOH group on the penam structure to a tetrazolyl group. Particularly there is described acylation of the novel intermediate, 6-amino-2,2-di- methyl-3-(5-tetrazolyl)penam or simple derivatives thereof; followed, in some cases, by further transformation of the 6- acylamino group or by removal of a protecting group from the 5- tetrazolyl moiety. Process for the preparation of 6-amino-2,2-dimethyl-3-(5-tetrazolyl) penam, simple derivatives thereof and intermediates therefor.

211057

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