Patent ID: 7632930

Claim:
A compound represented by the general formula (I): wherein A represents the general formula (A3): wherein R 1 and R 2 are the same or different, and each represent a C1-C6 alkyl group, hydroxymethyl group, C1-C6 alkoxymethyl group or C1-C6 haloalkyl group, R 3 , R 4 , R 5 and R 6 are the same or different, and each represent a C1-C6 alkyl group, C1-C6 alkoxy group, C1-C6 hydroxyalkyl group, C1-C6 haloalkyl group, amino group which amino group may optionally be substituted with one or two C1-C6 alkyl groups or C1-C6 hydroxyalkyl groups, hydroxyl group, hydrogen atom or halogen atom, and n represents an integer of 1 or 2; or a pharmacologically acceptable salt thereof.