Compounds Having CRTH2 Antagonist Activity

Abstract

Compounds of general formula (I) wherein W is chloro or fluoro; R1 is phenyl optionally substituted with one or more substituents, selected from halo, —CN, —C1-C6 alkyl, —SOR3, —SO2R3, —SO2N(R2)2, —N(R2)2, —NR2C(O)R3, —CO2R2, —CONR2R3, —NO2, —OR2, —SR2, —O(CH2)pOR2, or —O(CH2)pO(CH2)qOR2 wherein each R2 is independently hydrogen, —C1-C6 alkyl, —C3-C8 cycloalkyl, aryl or heteroaryl; each R3 is independently, —C1-C6 alkyl, —C3-C8 cycloalkyl, aryl or heteroaryl; p and q are each independently an integer from 1 to 3; and R4 is hydrogen, C1-C6 alkyl, C1-C6 alkyl substituted with aryl, aryl, (CH2)mOC(═O)C1-C6alkyl, ((CH2)mO)nCH2CH2X, (CH2)mN(R5)2 or CH((CH2)mO(C═O)R6)2; m is 1 or 2; n is 1-4; X is OR5 or N(R5)2; R5 is hydrogen or methyl; and R6 is C1-C18 alkyl; and their pharmaceutically acceptable salts, hydrates, solvates, complexes or prodrugs are useful in orally administrable compositions for the treatment of allergic diseases such as asthma, allergic rhinitis and atopic dermatitis.

Dependencies are inferred from the claim text.