Compounds of formula (I) are useful for the treatment of disease responsive to modulation of CRTH2 receptor activity, such as asthma, rhinitis, allergic airway syndrome, and allergic rhinobronchitis:
wherein A represents a carboxyl group —COOH, or a carboxyl bioisostere; A
1
is hydrogen or methyl; ring Ar
1
is an optionally substituted phenyl ring or 5- or 6-membered monocyclic heteroaryl ring, in which AA
1
CHO— and L2 are linked to adjacent ring atoms; rings Ar
2
, Ar
3
each independently represent a phenyl or 5- or 6-membered monocyclic heteroaryl ring, or a bicyclic ring system consisting of a 5- or 6-membered carbocyclic or heterocyclic ring which is benz-fused or fused to a 5- or 6-membered monocyclic heteroaryl ring, said ring or ring system being optionally substituted; t is 0 or 1; L2 and L3 are linker radicals as defined in the description.
式(I)的化合物可用于治疗对CRTH2受体活性调节敏感的疾病,例如哮喘、鼻炎、过敏性气道综合症和过敏性鼻支气管炎:其中A代表羧基—COOH或羧基
生物同位素;A1为氢或甲基;环Ar1为可选取代的苯环或5-或6-成员的单环杂环,其中
AA1CHO—和
L2连接到相邻的环原子上;环Ar2、Ar3各自独立地表示苯环或5-或6-成员的单环杂环,或由5-或6-成员的碳环或杂环组成的双环系统,该环或环系统是苯并或与5-或6-成员的单环杂环融合,该环或环系统是可选的取代;t为0或1;
L2和L3是如描述中定义的连接基。