| abstract |
A compound represented by the formula [I]: n n[wherein R 1 and R 2 are the same or different and each represents C 1-6 alkyl, C 3-8 cycloalkyl, et al; R 3a , R 3b , and R 4 are the same or different and each represents hydrogen, C 1-6 alkyl, et al; X represents βNβ, βCHβ, et al; Y 1 represents a single bond, C 1-3 alkylene, et al; Y 2 represents C 1-4 alkylene, oxy(C 1-4 alkylene), et al; Ar 1 represents a monocyclic aromatic carbocyclic group, monocyclic aromatic heterocyclic group, et al; and Ar 2 represents a 5- or 6-membered aromatic carbocyclic group, aromatic heterocyclic group, et al]. This compound functions as a melanin-concentrating hormone receptor antagonist and is useful as, e.g., a therapeutic agent for obesity, et al. |