Edwards Angell Palmer & Dodge LLP
Benzopyran or thiobenzopyran derivatives
The present invention relates to a novel benzopyran or thiobenzopyran derivative represented by formula (1): pharmaceutically acceptable salt or stereoisomer thereof, in which X, R1, R2, R3, R4 and A are defined as described in the specification, and to a process for preparation thereof and a pharmaceutical composition having anti-estrogenic activity which contains the compound (1) as an active component.
Chugai Seiyaku Kabushiki Kaisha
C C C A C A C A C A C
C07D C07D C07D A61P C07D A61P C07D A61P C07D A61P C07D
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Masahiro Hyun Suk Ju Su Kazumi Jae Chon Jong Min Myung Hwa Yoshitake
Nishimoto Lim Kim Morikawa Jo Kim Kim Kanbe