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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.:

US 4051252 B1

PDFFull Text
Date of Patent:
Sep. 27, 1977

Filed:

Nov. 24, 1975

3-aminoindazole-1 and 2-carboxylic acid derivatives

Applicant:
Inventors:

Karl Heinrich Mayer, Leverkusen, DT;

Siegfried Petersen, Leverkusen, DT;

Erich Klauke, Leverkusen, DT;

Friedrich Hoffmeister, Wuppertal-Elberfeld, DT;

Wolfgang Wuttke, Wuppertal-Elberfeld, DT;

Assignee:

Bayer Aktiengesellschaft, , DT;

Attorney:

Jacobs & Jacobs

Primary Examiner:

Donald B Moyer

Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
4242 / ; 548359 ;
Abstract

3-Aminoindazoles bearing a carbo(lower alkoxy), lower alkylamide or di(lower alkyl)amide group in the 1-or 2-position and further being optionally substituted in one or more of the 4-, 5-, 6- and/or 7-positions are analgesic, anti-inflammatory and antipyretic agents. The compounds, of which 3-amino-6-chloroindazole-1-carboxylic acid ethyl ester is a typical embodiment, are prepared through treatment of the appropriate 3-aminoindazole with a derivative of carbonic acid or through thermal isomerization.

Find Patent Forward Citations

Mayer, Karl. (1977). 3-aminoindazole-1 and 2-carboxylic acid derivatives (U.S. Patent No. 4051252). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4051252

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