USRE34653EExpiredUtility

Heterocyclic spiro compounds and methods for preparing the same

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Assignee: YAMANOUCHI PHARMA CO LTDPriority: Oct 5, 1987Filed: Jul 7, 1992Granted: Jul 5, 1994
Est. expiryOct 5, 2007(expired)· nominal 20-yr term from priority
Inventors:Shin-Ichi TsukamotoHitoshi NagaokaShinji UsudaMasatomi HaradaToshinari Tamura
A61P 25/02A61P 25/28C07D 471/10C07D 211/48C07D 491/10C07D 495/10C07D 491/048
72
PatentIndex Score
19
Cited by
17
References
2
Claims

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.

Claims

exact text as granted — not AI-modified
We claim: 
     
       1. 2,8-Dimethyl-3-methylene-1-oxa-8-azaspiro[4,5]decane .Iadd.or a pharmaceutically acceptable salt thereof.Iaddend.. 
     
     
       2. 2-Ethyl-8-methyl-1-oxa-8-azaspiro[4,5]decane-3-one .Iadd.or pharmaceutically acceptable salt thereof.Iaddend..

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