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:
Apr. 22, 2008
Filed:
Apr. 04, 2003
Applicants:
Hoon Choi, Taejeon, KR;
Sang-chul Choi, Taejeon, KR;
Do-hyun Nam, Taejeon, KR;
Bo-seung Choi, Taejeon, KR;
Inventors:
Hoon Choi, Taejeon, KR;
Sang-Chul Choi, Taejeon, KR;
Do-Hyun Nam, Taejeon, KR;
Bo-Seung Choi, Taejeon, KR;
Assignee:
LG Life Sciences Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 221/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for preparing acid salts of Gemifloxacin, a quinolone type antibiotic agent having potent antimicrobial activity. The process according to the present invention can provide advantages such as simplicity of process, improvement of productivity and improvement of yield, and the like by reducing conventional three-step process to two-step process.