Compounds of general formula (I)
wherein R1 is halo or cyano;
R2 is C1-C4 alkyl; and
R3 is phenyl substituted with one or more substituents chosen from C1-C6 alkyl, halo or —SO2(C1-C6 alkyl);
or a pharmaceutically acceptable salt, hydrate, solvate, complex or prodrug thereof; are useful in the treatment of diseases and conditions mediated by the action of PGD2 at the CRTH2 receptor.
通式(I)的化合物,其中R1是卤素或
氰基;R2是C1-C4烷基;R3是苯基,其上取代基选自C1-C6烷基,卤素或—SO2(C1-C6烷基)中的一种或多种;或其药学上可接受的盐,
水合物,溶剂合物,复合物或前药;在治疗由
PGD2在CRTH2受体介导的疾病和病况中有用。