Triarilcarboxílico acid derivative.

A compound triarilcarboxilico acid represented by the following general formula (I) or a salt thereof: wherein symbols in the formula have the following meanings: A: aryl or heteroaryl, wherein the aryl and heteroaryl may be substituted with one to 3 identical or different substituents selected from the following group G; group G: halogen, -CN, -NO2, C1-6 alkyl, C1-6 haloalkyl, -OR 1; -O-halogeno-C1-6 alkyl, -O-CO-R 1, -O-benzyl, - O-phenyl, -NR 2 R 3, -NH- CO-R 1, -CO 2 R 1, -CO -R 1 -CO-NR 2 R 3, -CO-phenyl, -SR 1, -SO 2 -alkyl C1- 6-, -SO2-phenyl, -NH-SO2-naphthalene-NR 2 R 3, phenyl, C and -C 1-6 alkylene-OR 1; R 1: H or C1-6 alkyl; R 2 and R 3: same or different, each representing H or C1-6 alkyl, where R 3 R 2, taken together with the nitrogen atom to which they are attached, may form a saturated monocyclic heterocycle containing hydrogen; and B: monocyclic heteroaryl, wherein the monocyclic heteroaryl may be substituted with a group selected from C1-6 alkyl, - OH and halogen.