| 摘要 |
A pharmaceutical composition for treating or preventing cancer containing a compound of the general formula (I), a prodorug, a pharmaceutically acceptable salt, or a solvate thereof as an active ingredient: <CHEM> wherein R<1> is hydroxy or the like; R<2> is optionally substituted lower alkyl or the like; R<3> is hydrogen or the like; R<4> is optionally substituted arylene or the like; R<5> is optionally substituted aryl or the like. |
