170690-99-0Relevant academic research and scientific papers
INDOLIZINE DERIVATIVES WITH CRTH2 RECEPTOR AFFINITY FOR THE TREATMENT OF INFLAMMATORY DISEASES
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Page/Page column 43-44, (2009/05/29)
Compounds of formula (I) are ligands of the CRTH2 receptor, useful in the treatment of, for example, inflammatory respiratory disease: R1 is fluoro, chloro, CN or CF3; R2 is hydrogen, fluoro or chloro; X is -CH2-, or - S(O)n-; Ar1 is phenyl or 5- or 6-membered heteroaryl, wherein the phenyl or heteroaryl rings are optionally substituted with one substituent selected from fluoro, chloro, CN, -O(C1-C3alkyi) or C1-C3alkyl, the latter two groups being optionally substituted by one or more fluoro atoms; Y is -CR3R4-, -C(O)-, -O-, -S(O)2- or -NR3-; R3 and R4 independently represent hydrogen or C1-C3alkyl; Ar2 is phenyl or 5- or 6- membered heteroaryl, wherein the phenyl or heteroaryl rings are optionally substituted by one or more substituents independently selected from halogen, - CN, -S(O)nR5, -S(O)2NR6R7, -NR6S(O)2R5 -NR6R7, -NR6COR5, -CONR6R7, -COR5, -OR6, C1- C6alkyl or C3-C7cycloalkyl, the latter two groups being optionally substituted by one or more fluoro atoms; R5 is C1-C6alkyl or C3-C7cycloalkyl, optionally substituted by one or more fluoro atoms; R6 and R7 independently represent hydrogen, C1-C6alkyl or C3-C7cycloalkyl, the latter two groups being optionally substituted by one or more fluoro atoms; and n is O, 1 or 2.
