| abstract |
A compound represented by the following general formula (I), wherein R 1 , R 2 , R 3 , R 4 and R 5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R 6 represents an alkyl group, a cycloalkyl group and the like, R 7 and R 8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R 9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R 10 and R 11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP). |