PIPERAZINE COMPOUND CAPABLE OF INHIBITING PROSTAGLANDIN D SYNTHASE

摘要

This invention relates to a piperazine compound represented by Formula (I), 5 whereinR' is CI-6 alkyl;R2 is hydroxy, CI-6 alkyl that may have one or more substituents, -(C=0)-N(R3) (R4), or -(C=0)-0R5;R3 and R4 are the same or different, and each10 represents hydrogen or CI-6 alkyl that may have one or more substituents, orR3 and R4, taken together with a nitrogen atom to whichR3 and R4 are attached, may form a saturated heterocyclic group; R5 is hydrogen or CI-6 alkyl that may have one or more15 substituents; andn is 1 or 2;or a salt thereof.