Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-07-11
2006-07-11
Lambkin, Deborah C. (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C549S023000
Reexamination Certificate
active
07074819
ABSTRACT:
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, R4and 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.
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Jo Jae Chon
Kanbe Yoshitake
Kim Jong Min
Kim Ju Su
Kim Myung Hwa
Alexander John B.
Chugai Seiyaku Kabushiki Kaisha
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Lambkin Deborah C.
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