Pyrrolidinone derivatives, their preparation and pharmaceutical composition comprising the same

   
   

The present invention relates to substituted pyrrolidinone compounds of formula 1, ##STR1## wherein n is 0 or 1; Aza is a heterocycle optionally substituted with C.sub.1-4 alkyl, or C.sub.1-4 alkyl substituted with a heterocycle, which represents a saturated or unsaturated five- or six-membered ring having nitrogen(s) as a heteroatom, which are muscarinic acetylcholine receptor agonists and useful as nootropics and therapeutic agents for cerebral neural diseases such as Alzheimer's disease; and pharmaceutically acceptable salts thereof; processes for the preparation thereof; and pharmaceutical compositions comprising these compounds or salts.

La actual invención se relaciona con los compuestos substituidos del pyrrolidinone del fórmula 1, ## del ## STR1 en donde n es 0 o 1; Aza es un heterocycle substituido opcionalmente con el alkyl C.sub.1-4, o el alkyl C.sub.1-4 substituido con un heterocycle, que representa cinco saturados o no saturados o six-membered el anillo que tiene nitrogen(s) como heteroatom, que son agonistas del receptor del acetylcholine y útiles muscarinic como nootropics y agentes terapéuticos para las enfermedades de los nervios cerebrales tales como enfermedad de Alzheimer; y farmacéutico sales aceptables de eso; procesos para la preparación de eso; y composiciones farmacéuticas que abarcan estos compuestos o sales.

 
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