PROBLEM TO BE SOLVED: To provide inhibitors of metallo-β-lactamase that degrades β-lactams that inhibit cell wall synthesis, and therapeutic agents comprising the inhibitors against β-lactamase-producing bacteria.SOLUTION: Provided is a compound of Formula (I) or a pharmaceutically acceptable salt thereof, where R1 and R2 are independently a straight/branched C1-C6 alkyl which may be substituted with one or more substituents, a straight/branched C2-C6 alkenyl which may be substituted with one or more substituents, a straight/branched C2-C6 alkynyl which may be substituted with one or more substituents, where the substituent is a straight/branched C1-C6 alkoxy or oxo.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】細胞合成を阻害するβ-ラクタム薬を分解する、メタロ-β-ラクタマーゼの阻害剤、及び当該阻害剤を含有するβ-ラクタマ-ゼ産生菌に対する治療薬の提供。【解決手段】式(I)で表される化合物又はその薬理学的に許容される塩。[R1及びR2は各々独立に、1以上の置換基で置換されていても良い直鎖/分岐状のC1~6アルキル基、1以上の置換基で置換されていても良い直鎖/分岐状のC2~6アルケニル基又は1以上の置換基で置換されていても良い直鎖/分岐状のC2~6アルキニル基;置換基は直鎖/分岐状のC1~6アルコキシ基又はオキソ基]。【選択図】なし
