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:
Nov. 24, 1992
Filed:
Mar. 11, 1991
Applicant:
Inventors:
Tatsuya Kon, Ashiya, JP;
Shiro Kato, Sakai, JP;
Toshiya Morie, Matsubara, JP;
Tadahiko Karasawa, Toyonaka, JP;
Naoyuki Yoshida, Matsubara, JP;
Assignee:
Dainippon Pharmaceutical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
540575 ; 540472 ; 540556 ;
Abstract
Indazole-3-carboxylic acid derivatives represented by the following general formula (I) and their physiologically acceptable acid addition salts or quaternary ammonium salts, ##STR1## are useful as a potent and selective antagonist of serotonin 3 (5-HT.sub.3) receptor. Also disclosed are compounds of the formula ##STR2## which are useful as intermediates in the production of the disclosed final product compounds.