FIELD: chemistry.
SUBSTANCE: invention relates to new substituted phenoxy-aceitic acids (I), in which: X is halogen, cyano, nitro or C1-4alkyl, which is substituted with one or more halogen atoms; Y is chosen from hydrogen, halogen or C1-C6alkyl, Z is phenyl, naphthyl or ring A, where A is a six-member heterocyclic aromatic ring containing one or two nitrogen atoms, or can be 6,6- or 6,5-condensed bicycle which contains one O, N or S atoms, or can be 6,5-condensed bicycle which contains two O atoms, where phenyl, naphthyl or ring A can all be substituted with one or more substitutes, independently chosen from halogen, CN, OH, nitro, COR9, CO2R6, SO2R9, OR9, SR9, SO2NR10R11, CONR10R11, NR10R11, NHSO2R9, NR9SO2R9, NR6CO2R6, NR9COR9, NR6CONR4R5, NR6SO2NR4R5, phenyl or C1-6alkyl, where the last group can possibly be substituted with one or more substitutes, independently chosen from halogen; R1 and R2 independently represent a hydrogen atom or C1-6alkyl group, R4 and R5 independently represent hydrogen, C3-C7cycloalkyl or C1-6alkyl, R6 is a hydrogen atom of C1-6alkyl; R8 is C1-4alkyl; R9 is C1-6alkyl, possibly substituted with one or more substitutes, independently chosen from halogen or phenyl; R10 and R11 independently represent phenyl, 5-member aromatic ring which contains two heteroatoms, chosen from N or S, hydrogen, C3-C7cycloalkyl or C1-6alkyl, where the last two groups are possibly substituted with one or more substitutes, independently chosen from halogen or phenyl; or R10 and R11 together with the nitrogen atom to which they are bonded, can form a 3- to 8-member saturated heterocyclic ring, which possibly contains one or more atoms chosen from O, S(O)n (where n= 0, 1 or 2), NR8.
EFFECT: invention relates to a method of modulating activity of CRTh2 receptors, involving administration of therapeutically effective amount of formula 
compound or its pharmaceutically acceptable salt to a patient.
9 cl, 170 ex
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