[Problem] To provide a compound retaining the principal therapeutic effect of paroxetine and having an improved CYP inhibitory effect. [Solution] A compound represented by Formula (1), or a pharmacologically acceptable salt thereof: wherein R1 is a hydrogen atom or C1-6 alkyl group.本發明目的係為了提供一種保留了帕羅西汀之主要治療作用並且具有改善的CYP抑制作用之化合物。本發明提供一種由化學式(1)代表之化合物,或其藥理學上可接受的鹽:其中R1係一氫原子或C1-6烷基。