PROBLEM TO BE SOLVED: To provide a novel compound which has outstanding NEP inhibitory activity.SOLUTION: The compound or its salt is expressed by formula (1). In the formula, R1 denotes a 6-12C aryl group which may have a substituent, and R2 and R3 each independently denote a hydrogen atom, a 1-20C alkyl group or a 6-12C aralkyl group.COPYRIGHT: (C)2012,JPO&INPIT【課題】優れたNEP阻害活性を有する新規化合物の提供。【解決手段】下記式(1)(式中、R1は置換基を有していてもよい炭素数6~12のアリール基を示し、R2及びR3は、それぞれ独立して、水素原子、炭素数1~20のアルキル基又は炭素数6~12のアラルキル基を示す。)で表される化合物又はその塩。【選択図】なし
