Process for producing tricyclic fused heterocyclic derivative

   
   

A process for easily and industrially advantageously producing both a tricyclic fused heterocyclic derivative having acetylcholinesterase inhibitory activity and an intermediate for the derivative. The process for producing the target compounds comprises the following reaction. ##STR1##

Un proceso para fácilmente e industrial ventajoso produciendo un derivado heterocíclico fundida tricíclico teniendo actividad inhibitoria del acetylcholinesterase y un intermedio para el derivado. El proceso para producir los compuestos de la blanco abarca la reacción siguiente. ## del ## STR1

 
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