2-substituted phenyl-5,7-dialkyl-3,7-dihydropyrrolo[2,3-d] pyrimidin-4-one derivatives, process for their preparation and pharmaceutical compositions comprising them

摘要

The invention relates to the compounds of formula I, their preparation and the pharmaceutical compositions containing the compounds. The invention also relates to the use of the compounds of formula I in preparing medicines, which can treat sexual dysfunction of animals including human (male and female), especially erectile dysfunction of male and the diseases in which the function of phospholipase 5 (cGMP PDE5) is involved.