| abstract |
Disclosed is a compound having excellent androgen receptor modulating activity. Specifically disclosed is a compound represented by the formula (I) or a salt thereof. (I) wherein R1, R2 and R4 to R6 independently represent a hydrogen atom, a halogen atom, a group attached through a carbon atom, a group attached through a nitrogen atom, a group attached through an oxygen atom or a group attached through a sulfur atom; R3 represents an electron-withdrawing group; R7 represents an alkyl which may have a substituent; R8 represents a hydrogen atom, an alkyl which may have a substituent, an alkenyl which may have a substituent, or a cycloalkyl which may have a substituent; R9 represents a group attached through an oxygen atom; and the ring A represents a 5- or 6-membered ring which may have a substituent other than R6 to R9. |