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:
Jul. 08, 2008
Filed:
Mar. 20, 2006
Applicants:
Hitoshi Harada, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yoshiaki Sato, Tsukuba, JP;
Hiroyuki Chiba, Kamisu, JP;
Teiji Takigawa, Kamisu, JP;
Inventors:
Hitoshi Harada, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yoshiaki Sato, Tsukuba, JP;
Hiroyuki Chiba, Kamisu, JP;
Teiji Takigawa, Kamisu, JP;
Assignee:
Eisai R&D Management Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one having a diffraction peak at a diffraction angle (2θ±0.2°) of 12.8°, 18.1° and/or 23.5° in a powder X-ray diffraction are excellent in stability against light, therefore are suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.