Patent ID: 7825109

Claim:
A compound represented by formula (IA-2-1): wherein ring A represents a cyclic group; ring B represents a dihydronaphthalene group, an indene group, or a 6,7-dihydro-5H-benzo[7]annulene group which may further have a substituent(s); X represents —CH 2 —, —(CH 2 ) 2 —, —(CH 2 ) 3 —, —(CH 2 ) 4 —, —(CH 2 ) 5 —, —(CH 2 ) 6 —, —(CH 2 ) 7 —, —(CH 2 ) 8 —, —O—, —CH 2 —O—, —(CH 2 ) 2 —O—, —(CH 2 ) 3 —O—, —(CH 2 ) 4 —O—, —(CH 2 ) 5 —O—, —CH═CH—CH 2 —O—or -cyclopropylene-CH 2 —O—, which each may be substituted, in which the right side of each group is bound to ring B; ring D 1 represents a nitrogen-containing heterocyclic group; Y 1-3 represents methylene which may have a substituent(s), ethylene which may have a substituent(s), propylene which may have a substituent(s) or propenylene which may have a substituent(s); R 27 represents a hydrogen atom, a halogen atom, or C1-4 alkyl which may be substituted with 1 to 3 halogen atoms; t is 0 or an integer of 1 to 5; R 1 represents a substituent of ring A; n represents 1; m is 0 or an integer of 1 to 7, and when m is 2 or more, plural R 1 s are the same or different; when X is —O—or —CH 2 —O—and ring A is phenyl, m is an integer of 1 to 5, or a salt thereof.