Patent ID: 8367835

Claim:
A compound represented by the following formula (I): wherein R 1 represents a methyl group or a hydrogen atom, R 2 represents a hydrogen atom, a C 1-4 alkyl group, a C 1-4 alkylcarbonyl group or an aryl carbonyl group, A represents a C 3-8 cycloalkyl group, a C 3-8 cycloalkenyl group, an aryl group or a heteroaryl group, wherein each group may be substituted at a position substitutable with C 1-6 alkyl, C 2-6 alkenyl, C 3-8 cycloalkyl or halogen, n and m, the same or different, each represent an integer of 1, 2 or 3, p represents an integer of 0 or 1, or a physiologically acceptable salt thereof.