PROBLEM TO BE SOLVED: To provide a pharmaceutical composition which is used for an anti-HCV therapy reducing an HCV infecting dose.SOLUTION: The pharmaceutical composition includes, as an active constituent: a compound represented by formula (I) (wherein, R1 and R2 respectively independently denote a saturated or unsaturated cyclic group having 3 to 11 members which may have a substituent or a 1 to 6C linear or branched hydrocarbon group having the cyclic group) or their pharmaceutically allowable salts. Among the compounds represented by formula (I), the preferable compound is the one in which R1 is a morpholino group which may have a substituent and R2 is a phenyl group, a benzyl group or a naphthalene-1-yl group which may have a substituent.COPYRIGHT: (C)2013,JPO&INPIT【課題】HCV感染量を低減させる抗HCV療法に用いる医薬組成物の提供。【解決手段】有効成分として、式(I)(式中、R1及びR2は、それぞれ独立して、置換基を有していても良い飽和若しくは不飽和の員数が3~11の環式基、又は、それを有する炭素数1~6の直鎖状又は分岐状炭化水素基を表す。)で表される化合物又はそれらの製薬上許容されうる塩を含有する。上記式(I)で表される化合物のうち、好ましい化合物は、R1が置換基を有していても良いモルホリノ基であり、R2が置換基を有していても良いフェニル基、ベンジル基又はナフタレン-1-イル基である化合物である。【選択図】なし
