Derivatives of cephalosporins, their process of separation and a

Details Derivatives of cephalosporins, their process of separation and a Derivatives of cephalosporins, their process of separation and a

1985-04-16

1986-03-25

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

544 27, A61K 31545, C07D50134

Patent

active

045783772

ABSTRACT:
The present invention relates to cephalosporins having the formula: ##STR1## in which COOA is an acidic radical, salt or ester, and R.sub.1 represents a group: ##STR2## in which R.sub.A and R.sub.B are H or alkyl or together form a cycloalkyl with the carbon to which they are bonded, R.sub.2 and R.sub.3 are H, alkyl or alkenyl, R.sub.4 and R.sub.5 are H, alkyl or alkenyl or together form a ring to the nitrogen atom with which they are bonded. This invention also relates to a process for the preparation of these compounds and to drugs containing them.

REFERENCES:
patent: 3278531 (1966-10-01), Cox et al.
patent: 4399131 (1983-08-01), Durekheimer et al.

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