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:
May. 14, 2002
Filed:
Nov. 20, 2001
Applicant:
Inventors:
Kwang-Ok Lee, Seongnam-si, KR;
Hee-Seock Kim, Daejeon, KR;
Young-Jin Ham, Seoul, KR;
Maeng-Sup Kim, Seoul, KR;
Han-Kyeng Kim, Yongin-si, KR;
Cheol-Kyeung Kim, Namyangju-si, KR;
Kum-Sin Jung, Seoul, KR;
Hoe-Chul Lee, Seongnam-si, KR;
Ki-Eun Kim, Seoul, KR;
Gwan-Sun Lee, Seoul, KR;
Assignee:
Hanmi Pharm. Co., Ltd., , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
Pure -1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-carbazol-4-one or a pharmaceutically acceptable salt thereof is prepared in a high yield by a simple process which reacts 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one with a 2-methylimidazole derivative in an organic solvent or in a mixture of an organic solvent and water in the presence of a halosilane compound.