2 acyloxycephem derivatives

Details 2 acyloxycephem derivatives 2 acyloxycephem derivatives

C - Chemistry, Metallurgy

07

K

C07K 5/04 (2006.01) A61K 31/545 (2006.01) A61K 38/05 (2006.01) A61K 38/06 (2006.01) C07D 501/00 (2006.01) C07D 519/00 (2006.01)

Patent

CA 2118422

2118422 9420504 PCTABScor01 The present invention provides cephalosporin sulphones of formula (I) and the pharmaceutically and veterinarily acceptable salts thereof, wherein n is one or two; A and B are both or each independently hydrogen or an organic radical; R1 represents halogen, A, OA, -S(O)mA wherein m is 0-2, -OC(O)A, -OS(O)2A, -NHC(O)A or -NH-Z wherein Z is a mono, di- or tripeptide and A is as defined above; R2 represents a halogen, A, -S(O)mA, -O-A, -C(O)A, -C(O)OA, -CH2-OA, -CH2S(O)mA, -CH2OC(O)A, -CH2O-Z, -CH2SC(O)A, -CH2-N(A)A', -CH2N+(A)(A')A", -CH2NH-C(O)A or -CH2NH-Z wherein A and Z are as defined above. The compounds of formula (I) and their salts are elastase inhibitors.

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