Cephalosporanic acid derivatives

Details Cephalosporanic acid derivatives Cephalosporanic acid derivatives

1978-03-14

1981-09-08

Coughlan, Jr., Paul M.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

544 28, 548195, A61K 31545, C07D50134

Patent

active

042884349

ABSTRACT:
Novel syn isomers of 7-amino-thiazolyl-acetamido-3-acetoxymethyl-cephalosporanic acid derivatives of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of --CN, --CONH.sub.2 and --COOR.sub.1 ', R.sub.1 ' is selected from the group consisting of alkyl of 1 to 3 carbon atoms, hydrogen, alkali metal, alkaline earth metal, ammonium, magnesium and a non-toxic, pharmaceutically acceptable organic amine, A is selected from the group consisting of hydrogen, alkali metal, alkaline earth metal, ammonium, magnesium and a non-toxic, pharmaceutically acceptable organic amine, R' and R" are individually selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms with the ##STR2## group in the syn position with the proviso that when R.sub.1 is --COOR.sub.1 ' and R.sub.1 ' is hydrogen, A is hydrogen and when R.sub.1 is --COOR.sub.1 ' and R.sub.1 ' is an alkali metal, alkaline earth metal, magnesium, ammonium or an organic amine, A is an alkali metal, alkaline earth metal, magnesium ammonium or an organic amine having antibiotic properties and novel intermediates and processes.

REFERENCES:
patent: 3971778 (1976-07-01), Cook et al.
patent: 4007174 (1977-02-01), Laundon
patent: 4098888 (1978-06-01), Ochiai et al.
patent: 4103084 (1978-07-01), Bradshaw et al.
patent: 4152432 (1979-05-01), Heymes et al.
patent: 4166115 (1979-09-01), Takaya et al.

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