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:
Nov. 14, 1989
Filed:
Sep. 09, 1988
Applicant:
Inventors:
Kunihiro Ninomiya, Machida, JP;
Ken-Ichi Saito, Machida, JP;
Shuji Morita, Yokohama, JP;
Akihiro Tobe, Yokohama, JP;
Issei Nitta, Machida, JP;
Assignee:
Mitsubishi Kasei Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
514316 ; 514318 ; 514343 ; 546187 ; 546193 ; 546281 ;
Abstract
Novel 4-aminopyridine derivatives represented by the general formula (I): ##STR1## wherein A and B independently represent ##STR2## and n is an integer of 1 or 2; as well as their pharmaceutically acceptable acid addition salts are disclosed herein. The novel compounds are useful as the agent for improving impaired brain function.