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:
Aug. 03, 2010
Filed:
Dec. 30, 2008
Hitoshi Harada, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yoshiaki Sato, Tsukuba, JP;
Hiroyuki Chiba, Kamisu, JP;
Yuki Komatsu, Kamisu, JP;
Susumu Inoue, Kamisu, JP;
Naoki Ozeki, Tsukuba, JP;
Hitoshi Harada, Tsukuba, JP;
Hiroshi Ishihara, Tsukuba, JP;
Yoshiaki Sato, Tsukuba, JP;
Hiroyuki Chiba, Kamisu, JP;
Yuki Komatsu, Kamisu, JP;
Susumu Inoue, Kamisu, JP;
Naoki Ozeki, Tsukuba, JP;
Eisai R&D Management Co., Ltd., Tokyo, JP;
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 9.7° and/or 21.9° in a powder X-ray diffraction are suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation. Crystals of 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one hydrate and amorphous 5-[2-amino-4-(2-furyl)pyrimidin-5-yl]-1-methylpyridin-2(1H)-one hydrate are also suitable for an active ingredient of a preventing and therapeutic agent for diseases such as constipation.