Thienocycloheptapyridazine compounds and their pharmaceutical use
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United States of America Patent
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Oct 6, 1992
Grant Date -
N/A
app pub date -
May 17, 1990
filing date -
Sep 21, 1988
priority date (Note) -
Expired
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Abstract
A thienocycloheptapyridazine compound of the formula ##STR1## wherein R stands for hydrogen, a halogen or a C.sub.1-4 alkyl, Ar stands for an aryl, a heteroaryl, or an aryl or a heteroaryl having as a substituent at least a halogen, a C.sub.1-4 alkyl, a C.sub.1-4 alkoxy, nitro, amino, hydroxy, trifluoromethyl and/or a C.sub.2-5 alkanoylamino; and the bond between 4-position and 42-position represents a single bond or a double bond, which is useful as an antianxiety agent, amnesia-treating drug, a brain function-activating drug or an antidementiac drug.
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