Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-11-08
2009-11-17
Habte, Kahsay T (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C514S235800, C544S105000, C544S139000
Reexamination Certificate
active
07618960
ABSTRACT:
The present invention relates to a compound represented by the formula (I):or a pharmacologically acceptable salt thereof, wherein R1, R2, R3, and R4are the same or different and each represent a hydrogen atom or a C1-6 alkyl group; X1represents a C1-6 alkylene group that may be substituted; Xarepresents a methoxy group or a fluorine atom; Xbrepresents an oxygen atom or a methylene group, provided that Xbis only an oxygen atom when Xais a methoxy group; and Ar1represents an aryl group, pyridinyl group, aryloxy group, or pyridinyloxy group that may have a substituent such as a halogen atom; and to use of the compound or salt as a pharmaceutical agent.
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Doi Eriko
Hagiwara Hiroaki
Ito Koichi
Kaneko Toshihiko
Kawano Koki
Birch & Stewart Kolasch & Birch, LLP
Eisai R&D Management Co., Ltd.
Habte Kahsay T
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