Patent ID: 8507669

Claim:
An optically active 6,7-dihydro-5H-dibenzo[c,e]azepine derivative represented by formula (1): where: R is represented by formula (2): —O—R′—O— (2) wherein R′ represents —(CH 2 ) n — that may have a substituent selected from the group consisting of: a halogen atom, a linear, branched, or cyclic C1-C8 alkyl group, a linear, branched, or cyclic C1-C8 alkoxy group, an oxo group, an aryl group, an arylcarbonyl group, an alkylcarbonyl group, an arylsulfonyl group, and an alkylsulfonyl group; n is an integer of 1 to 8; R 1 and R 2 are the same or different, and represent: a hydrogen atom; a halogen atom; a linear, branched, or cyclic C1-C8 alkyl group that may have a substituent selected from the group consisting of: a halogen atom, a C6-C14 aryl group, and a linear, branched, or cyclic C1-C8 alkoxy group; or a C6-C14 aryl group that may have a substituent selected from the group consisting of: a halogen atom, a linear, branched, or cyclic C1-C8 alkyl group, and a linear, branched, or cyclic C1-C8 alkoxy group; R 3 and R 4 are the same or different, and represent a linear, branched, or cyclic C1-C30 alkyl group, or R 3 and R 4 together form wherein * represents optical activity; Ar represents a C6-C14 aryl group that may have a substituent selected from the group consisting of: a halogen atom, a linear, branched, or cyclic C1-C8 alkyl group, a linear, branched, or cyclic C1-C8 alkoxy group, a linear, branched, or cyclic C1-C8 alkylcarbonyl group, a linear, branched, or cyclic C1-C8 alkylsulfonyl group, a C6-C14 arylcarbonyl group, and a C6-C14 arylsulfonyl group; or Ar represents a C3-C8 heteroaryl group that may have a substituent selected from the group consisting of: a halogen atom, a linear, branched, or cyclic C1-C8 alkyl group, a linear, branched, or cyclic C1-C8 alkoxy group, a linear, branched, or cyclic C1-C8 alkylcarbonyl group, a linear, branched, or cyclic C1-C8 alkylsulfonyl group, a C6-C14 arylcarbonyl group, and a C6-C14 arylsulfonyl group; X— represents a counter anion; and * represents optical activity.