Patent ID: 7638536

Claim:
A 2-acylaminothiazole derivative compound represented by the following Formula (V), or a pharmaceutically acceptable salt thereof: wherein the symbols have the following meanings: Ar 2 : substituted or unsubstituted phenyl or monocyclic aromatic heterocycle; R 3 : a substituted or unsubstituted thienyl; R 4 : a group represented by Formula II: wherein X is C(R 27 )R 28 or NR 26 and m=n=2; wherein CR 20 R 21 and CR 22 R 23 can be identical or different; and wherein each of R 20 , R 21 , R 22 , R 23 , R 26 , R 27 , and R 28 can be the same or different and can be selected from the group consisting of H; —OH; —O-lower alkyl; a substituted or unsubstituted lower alkyl; a substituted or unsubstituted cycloalkyl; a substituted or unsubstituted aryl; a substituted or unsubstituted arylalkyl; a substituted or unsubstituted aromatic heterocycle; a substituted or unsubstituted aromatic heterocyclic alkyl; a substituted or unsubstituted nonaromatic heterocycle; lower alkenyl; lower alkylidene; —COOH; —COO-lower alkyl; —COO-lower alkenyl; —COO-lower alkylene-aryl; —COO-lower alkylene-aromatic heterocycle; carbamoyl or amino, each of which can be substituted with one or more groups selected from the group consisting of lower alkyl which can be substituted with halogen, —OH, —O-lower alkyl, or —O-aryl; —NHCO-lower alkyl; and oxo.