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. 10, 2013
Filed:
Feb. 15, 2008
Applicants:
Eiichi Yamamoto, Tsukuba, JP;
Osamu Asano, Tsukuba, JP;
Jun Niijima, Tsukuba, JP;
Kazumasa Nara, Tsukuba, JP;
Inventors:
Eiichi Yamamoto, Tsukuba, JP;
Osamu Asano, Tsukuba, JP;
Jun Niijima, Tsukuba, JP;
Kazumasa Nara, Tsukuba, JP;
Assignee:
Eisai R&D Management Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 239/84 (2006.01); A61K 31/517 (2006.01);
U.S. Cl.
CPC ...
Abstract
Crystals, amorphous substances, salts, and hydrates of a salt of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid having PDE4 inhibitory action are provided. These compounds are useful for treating allergic diseases such as atopic dermatitis.