Abstract: A medicament useful for preventive and/or therapeutic treatment of nerve system diseases which comprises, as an active ingredient, a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof: wherein, X represents a group represented by the following general formula (II), (III), (IV), (V), or (VI), “A” represents a saturated or unsaturated 3- to 6-membered carbocyclic group and the like, “B” represents CH2 and the like, “n” represents 0 to 2, R1 represents a hydrogen atom, a halogen atom and the like, R2, R3, and R7 to R14 represent a hydrogen atom, a lower alkyl group which may be substituted and the like, R4 represents a hydrogen atom, a lower alkyl group which may be substituted and the like, R5 represents a hydrogen atom, a halogen atom and the like, R6 represents a saturated or unsaturated monocyclic or bicyclic carbocyclic group and the like, and R5 and R6, R7 and R8, R9 and R10, or R11 and R12 may bind to each other to form a cyclic structure.

Abstract: A medicament useful for preventive and/or therapeutic treatment of nerve system diseases which comprises, as an active ingredient, a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof: wherein, X represents a group represented by the following general formula (II), (III), (IV), (V), or (VI), “A” represents a saturated or unsaturated 3- to 6-membered carbocyclic group and the like, “B” represents CH2 and the like, “n” represents 0 to 2, R1 represents a hydrogen atom, a halogen atom and the like, R2, R3, and R7 to R14 represent a hydrogen atom, a lower alkyl group which may be substituted and the like, R4 represents a hydrogen atom, a lower alkyl group which may be substituted and the like, R5 represents a hydrogen atom, a halogen atom and the like, R6 represents a saturated or unsaturated monocyclic or bicyclic carbocyclic group and the like, and R5 and R6, R7 and R8, R9 and R10, or R11 and R12 may bind to each other to form a cyclic structure.

Abstract: A substance having affinity for an opioid &dgr; receptor, which is represented by the following general formula (I): wherein, X represents a group of the general formula: —CO—N(R5)(R6) (II) and the like, n represents 1 to 3, R1 and R2 represent a hydrogen atom, a halogen atom, a lower alkyl group and the like, R3 represents a hydrogen atom, a halogen atom, a lower alkyl group and the like, R4 represents a saturated or unsaturated monocyclic or bicyclic carbocyclic group and the like, R5 to R12 represent a hydrogen atom, a lower alkyl group and the like, and R3 and R4, R5 and R6, R7 or R8 and R9 and R10 may bind to each other to form a cyclic structure, and a medicament useful for preventive and/or therapeutic treatment of central nervous system diseases and peripheral nervous system diseases comprising the substance as an active ingredient.

Abstract: A substance having affinity for an opioid &dgr; receptor, which is represented by the following general formula (I): 1

Abstract: A medicament useful for preventive and/or therapeutic treatment of nerve system diseases which comprises, as an active ingredient, a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof: 1