| 摘要 |
An active ingredient is a compound represented by the general formula [I]: [wherein R1 and R2 represent a lower alkyl group, a C3-6 cycloalkyl group or the like, X1 and X2 represent methine, an Ar—Y1—Y2—Y3-substituted methine or the like, however either of them is an Ar—Y1—Y2—Y3-substituted methine, X3 to X8 represent methine, —N— or the like, Y1 and Y3 represent a single bond, —O— or the like, Y2 represent a single bond, a lower alkylene group or the like, W represent —(O)—(CH2)n-(O)— or the like, n represents an integer of 1 to 4, L and Z2 represent a single bond or a methylene group, Z1 represents a single bond, a C1-4 alkylene group or the like, and Ar represents an aromatic carbocyclic group or the like]. The compound acts as a melanin-concentrating hormone receptor antagonist and useful as a therapeutic agent for obesity or the like.
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