NEW SPIROTRICYCLIC DERIVATIVES AND THEIR USE AS PHOSPHODIESTERASE-7 INHIBITORS

摘要

The invention provides compounds which are PDE7 inhibitors, having the following formula (I), in which X, X, X, X, X, Y, Z and A are as defined in the description, methods for preparing them and their use for the treatment of disorders for which therapy by a PDE7 inhibitor is relevant.