US 5,663,163 AGranted

Cephem compounds and processes for preparation thereof

AssigneeFujisawa Pharmaceutical Co., Ltd.

InventorsTakao Takaya, Kazuo Sakane, Kenzi Miyai, Kohji Kawabata

Life of this patent

Estimating the term…

Abstract

The present invention relates to new cephem compounds, pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the same and anti-bacterial methods of using the same. The subject cephem compounds comprise a thiadiazine ring bonded to the cephem through an iminoacetamido chain and a pyarzolium ring bonded to the cephem through a methylene chain.

Claims3

Dependent claims

7.beta.-[2-(5- amino-1,2,4-thiadiazol-3-yl)-2-ethoxyiminoacetamido]-3-[3-amino-2-(2-hydrox yethyl)-1-pyrazolio]methyl-3-cephem-4-carboxylate (syn isomer) or its acid addition salt.

Dependencies are inferred from the claim text.

Facts

Application: 08/591,261Filed 22 Jan 1996 · continuation
Priority: GB 87210167 Sep 1987
Granted: 2 Sep 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

C07D 501/46
Methylene radicals, substituted by nitrogen atoms; Lactams thereof with the 2-carboxyl group; Methylene radicals substituted by…: with the 7-amino…
C07D 501/00
Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a
C07D
Heterocyclic compounds

Family

Serial238,136Parent of this continuation · filed 30 Aug 1988
Serial683,473Parent of this continuation-in-part · filed 9 Apr 1991
Serial993,615Parent of this continuation · filed 21 Dec 1992
US 5,210,080 AParent of this continuation-in-part · filed 11 May 1993
Serial135,583Parent of this continuation · filed 19 Oct 1993
Serial459,631Parent of this continuation · filed 2 Jun 1995
US 5,663,163 AThis patent

From the US filing history. Foreign family members aren’t listed.

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