The present invention is directed to a compound of Formula (I): wherein: n is an integer from 0-1； • X is CH2 when n is 0, or X is CH2 or oxygen when n is 1； • R1 is phenyl or pyridinyl, wherein the phenyl or pyridinyl is optionally substituted with from 1 to 4 substituents independently selected from halogen and alkyl； and • R2 is phenyl, pyridinyl, pyrazinyl, pyradizinyl, pyrimidinyl, pyrrolyl, pyrazolyl, thiazolyl or thiophenyl, wherein the phenyl, pyridinyl, pyrazinyl, pyradizinyl, pyrimidinyl, pyrrolyl, pyrazolyl, thiazolyl or thiophenyl is optionally substituted with from 1 to 2 substituents independently selected from the group consisting of halogen, alkyl, hydroxy and alkoxy. The invention also relates to pharmaceutical compositions comprising compounds of Formula (I). The compounds of formula (I) are useful as P2X7 modulators.
