A compound represented by the formula (I)wherein R1is a hydrogen atom, a halogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom or a group via a sulfur atom； R2is a hydrogen atom, a halogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom or a group via a sulfur atom； R3is an electron-withdrawing group； R4is a hydrogen atom, a halogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom or a group via a sulfur atom； R5is a hydrogen atom, a halogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom or a group via a sulfur atom； R6is a hydrogen atom, a halogen atom, a group via a carbon atom, a group via a nitrogen atom, a group via an oxygen atom or a group via a sulfur atom； R7is an alkyl group optionally having substituent(s) or an aralkyl group optionally having substituent(s)； R8is a hydrogen atom, an alkyl group optionally having substituent(s), an alkenyl group optionally having substituent(s) or a cycloalkyl group optionally having substituent(s)； R9is a group via an oxygen atom； and Ring A is a 5- or 6-membered ring optionally further having substituent(s) (in this case, Ring A may be a 5- or 6-membered ring forming a spiro bond with C3-6cycloalkane), or a salt thereof has a superior androgen receptor modulating action.下式(I)所示之化合物或其鹽具有優越之雄激素受體調節作用：式中R1為氫原子、鹵原子、經由碳原子之基團、經由氮原子之基團、經由氧原子之基團或經由硫原子之基團；R2為氫原子、鹵原子、經由碳原子之基團、經由氮原子之基團、經由氧原子之基團或經由硫原子之基團；R3為吸電子基團；R4為氫原子、鹵原子、經由碳原子之基團、經由氮原子之基團、經由氧原子之基團或經由硫原子之基團；R5為氫原子、鹵原子、經由碳原子之基團、經由氮原子之基團、經由氧原子之基團或經由硫原子之基團；R6為氫原子、鹵原子、經由碳原子之基團、經由氮原子之基團、經由氧原子之基團或經由硫原子之基團；R7為視需要具有取代基之烷基或視需要具有取代基之芳烷基；R8為氫原子、視需要具有取代基之烷基、視需要具有取代基之烯基或視需要具有取代基之環烷基；R9為經由氧原子之基團；及A環為視需要進一步具有取代基之5或6員環(於此情形下，A環可為與C3－6環烷形成螺鍵之5或6員環)。
