| 摘要 |
Compounds represented by general formula (I) or salts thereof and neuropeptide Y receptor antagonists containing the same as the active ingredient wherein R<1> represents hydrogen or lower alkyl; R<2> represents lower alkyl, or R<1> and R<2> may form together lower alkylene optionally having oxygen interposed therein; R<3> and R<4> represents hydrogen at the same time or may form together a single bond; R<5> and R<6> represent hydrogen at the same time or may form together lower alkylidene optionally having oxygen interposed therein; R<7> and R<8> independently represent each hydrogen, halogeno, nitro, hydroxy, lower alkyl, lower alkoxy, aryl, aralkyloxy, di(lower alkyl)amino, lower alkoxycarbonylamino or arylcarbonylamino, or R<7> and R<8> may form together lower alkylene or a benzene ring ortho-fused with the adjacent ring; X represents oxygen or sulfur; and Y represents methine or nitrogen. |
