The Invention relates to novel Heterocyclic compounds of formula (i), a Novel in which all variables are as defined in the specification, in free form or in Salt form, to their preparation, to their medical use as bace Inhibitors for the treatment of disease Of Azheimer, and Medications that include.La invención se refiere a novedosos compuestos heterocíclicos novedosos de a fórmula (I):en donde todas las variables son como se definen en la memoria descriptiva, en forma libre o en forma de sal, a su preparación, a su uso médico como inhibidores de BACE para el tratamiento de la enfermedad de Azheimer, y a medicamentos que los comprenden.