New process for the preparation of pirazolopirimidinassolicitante: Pfizer, inc.pais: Honduras

摘要

The present Invention relates to a New process for the production of Derivatives of 4 - alquilpiperazinilsulfonilfenil and 4 - [4 - alquilpiperazinilsulfonil piridinildihidropirazolo,3 - d] pyrimidin-7-one and in particular the drug Sildenafil, antiimpotencia, and similar compounds.