The present invention is related to a compound or a pharmacologically acceptable salt thereof having excellent DGAT inhibitory effect and antifeeding activity. The compound represented by the general formula (I) or the pharmacologically acceptable salt thereof is shown as following: [wherein, R is a phenyl optionally substituted by 1 to 5 groups independently selected from the substituent group A； Q is a nitrogen atom or the group represented by -CH=； U is a nitrogen atom or the group represented by -CH=； V is a nitrogen atom or the group represented by -CH=； m is 0 or 1； n is 0 or 1； the substituent group A is halogen atom, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxyl, and the like].本發明係關於具有優異DGAT阻礙作用及攝食抑制作用的化合物或其藥理上可容許的鹽。通式(I)所表示之化合物或其藥理上可容許的鹽為：[式中，R為可被1至5個獨立選自取代基群A之基取代的苯基等；Q為氮原子或式-CH=所表示的基；U為氮原子或式-CH=所表示的基；V為氮原子或式-CH=所表示的基；m為0或1；n為0或1；取代基群A為鹵素原子、C1-C6烷基、C1-C6鹵化烷基、C1-C6烷氧基等]。
