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US 4,546,101 AGranted
New cephem compounds useful for treating infectious diseases in human being and animals and processes for preparation thereof
AssigneeFujisawa Pharmaceutical Co., Ltd.
InventorsTakao Takaya, Hisashi Takasugi, Hideaki Yamanaka, Kenji Miyai, Yoshikazu Inoue
Life of this patent
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Abstract
The invention relates to cephem compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino or acylamino, R.sup.2 is lower alkyl, and Y is CH or N.
Claims12
New cephem compounds of the formula:
- ##STR16## wherein R.sup.1 is carboxylic acylamino,
- R.sup.2 is lower alkyl, and
- Y is CH or N,
- and pharmaceutically acceptable salts thereof.
1 more element
A cephem compound of the formula:
- ##STR17## wherein R.sup.1 is carboxylic acylamino,
- R.sup.2 is lower alkyl,
- R.sub.a.sup.3 is carboxy or a protected carboxy,
- Y is CH or N, and
- Z is an acid residue,
- and a salt thereof.
3 more elements
Dependencies are inferred from the claim text.