| abstract |
(57) [Summary] [Structure] An oxadiazole derivative represented by the following general formula (I) or a salt thereof: [The symbols in the formulas have the following meanings. R 1 or R 2 : either one of the following formulas The other is a group represented by the formula-A-Het (A: a mere bond or a lower alkylene group Het: a condensed or monocyclic non-aromatic ring heterocyclic group containing at least one nitrogen atom)] [Effects] 5-HT 4 receptor has a selective agonistic activity, It is useful for disorders such as the central nervous system, digestive system, and circulatory system. |