US 2004/0073023 A1Published application

3-cephem derivative crystal

AssigneeOtsuka Kagaku Kabushiki Kaisha

InventorsTakashi Moriyoshi, Yasuhiro Uosaki, Yutaka Kameyama, Daisuke Suzuki, Yoshiko Seo

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Abstract

A 3-cephem derivative crystal which is a clathrate compound comprising p-methoxybenzyl ester of 7-phenylacetamide-3-formyl-3-cephem-4-carboxylic acid and dimethylformamide and a process for preparing the 3-cephem derivative crystal.

Claims3

Dependent claims

A 3-cephem derivative crystal which is a clathrate compound comprising p-methoxybenzyl ester of 7-phenylacetamide-3-formyl-3-cephem-4-carboxylic acid and dimethylformamide.

Dependencies are inferred from the claim text.

Facts

Application: 10/679,451Filed 7 Oct 2003
Priority: JP 278.535/199930 Sep 1999
Published: 15 Apr 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

C07D 501/00
Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a
Y02P 20/54
Improvements relating to the production of bulk chemicals: using solvents, e.g. supercritical solvents or ionic liquids
C07D
Heterocyclic compounds
Y02P
Low-carbon manufacturing

Family

Application10/089,194Division · filed 27 Mar 2002
Application10/089,194A 371 of international · filed 27 Mar 2002
Application10/679,451Division · filed 7 Oct 2003
US 6,887,992 B2Related patent
US 2004/0073023 A1This patent

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

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