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:
Sep. 02, 2014
Filed:
Oct. 26, 2012
Astellas Pharma Inc., Chuo-ku, JP;
Kiyohiro Samizu, Chuo-ku, JP;
Naoyuki Masuda, Chuo-ku, JP;
Kazuhiko Iikubo, Chuo-ku, JP;
Yohei Koganemaru, Chuo-ku, JP;
Noriyuki Kawano, Tsukuba, JP;
Junya Ohmori, Chuo-ku, JP;
Yasuyuki Mitani, Chuo-ku, JP;
Keni Ni, Chuo-ku, JP;
Astellas Pharma Inc., Chuo-ku, JP;
Abstract
[Problem] To provide a compound useful as medicine having PDE4B inhibitory activity, in particular, as an active ingredient of a composition for treating or preventing schizophrenia, Alzheimer's disease, dementia, depression and the like. [Measures for Solution] The present inventors examined compounds having PDE4B inhibitory activity and found that a tricyclic or tetracyclic imidazo[1,2-a]pyridine derivative or salts thereof had a superior PDE4B inhibitory activity, thereby completing the present invention. The imidazo[1,2-a]pyridine derivative can be used as an agent for treating or preventing schizophrenia, Alzheimer's disease, dementia, depression and the like.