The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
Mar. 25, 2004
Nobuo Matsumoto, Tokyo, JP;
Hiroshi Kawakabe, Tokyo, JP;
Yasuko Manabe, Tokyo, JP;
Nippon Chemical Industrial Co., Ltd., Tokyo, JP;
Abstract
A chlorinated azetidinone derivative expressed by Formula (1) and an alcoholate are allowed to react in a solvent containing at least one of alcohols and an ether at a pH of 8 or less. Thus a 3-chloromethyl-3-cephem derivative expressed by Formula (2) is prepared. In the formulas, Rrepresents a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic residue, and Rand Reach represent a substituted or unsubstituted aromatic hydrocarbon group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile