Substituted imidazo[1,5-a]quinoxalines useful as inhibitors of phosphodiesterase 10 for the treatment of neurological and other disorders

摘要

The invention relates to imidazo[1,5-a]quinoxaline derivatives having Formula IIa: to processes for preparing them, to pharmaceutical preparations which comprise these compounds and to the pharmaceutical use of these compounds, which are inhibitors of phosphodiesterase 10 (PDE10), as active compounds for treating central nervous system diseases of mammals, including humans.