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.

Date of Patent:
Nov. 20, 2012

Filed:

Jun. 27, 2011
Applicants:

Masuharu Hirano, Saitama, JP;

Tomio Yamakawa, Chiba, JP;

Toshihisa Ishikawa, Kanagawa, JP;

Hikaru Saito, Kanagawa, JP;

Inventors:

Masuharu Hirano, Saitama, JP;

Tomio Yamakawa, Chiba, JP;

Toshihisa Ishikawa, Kanagawa, JP;

Hikaru Saito, Kanagawa, JP;

Assignee:

Nippon Chemiphar Co., Ltd., Chiyoda-ku, Tokyo, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/33 (2006.01);
U.S. Cl.
CPC ...
Abstract

An agent comprising, as an active ingredient, a xanthine oxidase inhibitor such as 2-[3-cyano-4-(4-fluorophenoxy)phenyl]-4-hydroxythiazolo[5,4-d]pyrimidine potassium salt, 2-[3-cyano-4-(4-fluorophenoxy)phenyl]thiazolo[5,4-d]pyrimidine, 2-(3-cyano-4-phenoxyphenyl)-4-hydroxythiazolo[5,4-d]pyrimidine, 2-(3-cyano-4-phenoxyphenyl)-4-hydroxythiazolo[5,4-d]pyrimidine potassium salt, 2-(3-cyano-4-phenoxyphenyl)thiazolo[5,4-d]pyrimidine, TMX-67, and FYX-051, which can be used as an agent for overcoming anti-cancer agent resistance.


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