PROBLEM TO BE SOLVED: To provide a novel compound having a high monoacylglycerol acyltransferase (MGAT) 2-inhibiting activity.SOLUTION: The invention provides dihydro-pyrido-pyrimidine based compound represented by general formula (I), or a pharmaceutically acceptable salt thereof.SELECTED DRAWING: None【課題】モノアシルグリセロールアシルトランスフェラーゼ(MGAT)2阻害活性の高い新規化合物の提供。【解決手段】一般式(I)で表されるジヒドロ-ピリド-ピリミジン系化合物又はその医薬的に許容できる塩。【選択図】なし