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:
Feb. 26, 1991
Filed:
Jan. 25, 1990
Applicant:
Inventors:
Shin-ichi Tsukamoto, Tokyo, JP;
Hitoshi Nagaoka, Tokyo, JP;
Shinji Usuda, Ibaragi, JP;
Masatomi Harada, Saitama, JP;
Toshinari Tamura, Saitama, JP;
Assignee:
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514278 ; 514183 ; 514212 ; 540466 ; 540543 ; 546 16 ; 546 18 ;
Abstract
Heterocyclic spiro compounds represented by the following general formula and salts thereof ##STR1## The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.