| abstract |
(57) [Summary] (Modifications) [Problem] To provide a compound having progesterone receptor binding inhibitory activity and good bioavailability, and a pharmaceutical composition comprising the same. A compound represented by the following formula (I): wherein R 1 is -NHC H 3, -N (CH 3) CH 2 OH, -N (CH 3) CH O represents R, and R 2 represents a hydrogen atom or a methyl group. However, when R 1 represents —NHCH 3 , R 2 is not a methyl group. Or a pharmaceutically acceptable salt thereof as an active ingredient. (I) |