Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-01-06
1993-08-10
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
514206, 540222, 540225, 540227, C07D50146, A61K 31545
Patent
active
052349209
ABSTRACT:
The present invention relates to new cephalosporins of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or carboxy, with the proviso that both cannot be the same;
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Imae Kiyoto
Kamachi Hajime
Masuyoshi Shinji
Okita Taka-aki
Bristol--Myers Squibb Company
Han William T.
Rizzo Nicholas S.
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