Substituted imidazo[1,5-a]quinoxalines useful as inhibitors...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C544S011000, C544S353000, C546S167000, C546S268100, C548S202000, C548S247000, C548S373100, C549S059000

Reexamination Certificate

active

07875618

ABSTRACT:
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.

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