| 摘要 |
Compounds of general formula (II) 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. |
