COMPUESTOS DERIVADOS DE AMIDAS SUSTITUIDAS; PROCESO PARA LA PREPARACION DE DICHOS COMPUESTOS; COMPOSICION FARMACEUTICA QUE COMPRENDE A DICHOS COMPUESTOS; Y SU USO PARA EL TRATAMIENTO DEL INSOMNIO, DISFUNCION SEXUAL, ESQUIZOFRENIA, ENTRE OTRAS ENFERME

摘要

The present invention relates to compounds of formula I wherein Ar1, Ar2, Ar3, n, and R1 to R8 are as defined herein and to pharmaceutically suitable acid addition salts, optically pure enantiomers, racemates or diastereomeric mixtures thereof. These compounds are orexin receptor antagonists and may be useful in the treatment of disorders, in which orexin pathways are involved, like sleep disorders.