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:
May. 21, 2019
Filed:
Dec. 04, 2015
Applicant:
Meiji Seika Pharma Co., Ltd., Chuo-ku, Tokyo, JP;
Inventors:
Takaya Ogawa, Kanagawa, JP;
Takuya Yokoyama, Kanagawa, JP;
Shusuke Furuyama, Kanagawa, JP;
Masato Ichiki, Kanagawa, JP;
Kenichi Fushihara, Kanagawa, JP;
Assignee:
MEIJI SEIKA PHARMA CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/08 (2006.01); A61K 9/19 (2006.01); A61K 31/439 (2006.01); A61K 9/00 (2006.01); A61K 47/02 (2006.01);
U.S. Cl.
CPC ...
C07D 471/08 (2013.01); A61K 9/0019 (2013.01); A61K 9/19 (2013.01); A61K 31/439 (2013.01); A61K 47/02 (2013.01); C07B 2200/13 (2013.01);
Abstract
A process for producing crystals of a compound represented by the following formula (I): by crystallizing the compound from an aqueous solution containing the compound and an inorganic salt, such as sodium chloride. Such crystals can be subjected to lyophilization to provide a lyophilized composition having a desirable storage stability.