Substituted hydroxy-anilino derivatives of cyclobutene-3,4-diones
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United States of America Patent
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Nov 24, 1998
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app pub date -
Jan 14, 1998
filing date -
Jan 30, 1997
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Abstract
The compound of the formula: ##STR1## wherein R.sup.1 is straight chain alkyl, branched chain alkyl, cycloalkyl, hydroxyalkyl, fluoroalkyl, or polyfluoroalkyl; and one of R.sup.2, R.sup.3 and R.sup.4 is hydroxyl and the other two are, independently, H, CN, halogen, alkyl or hydroxyl; or a pharmaceutically acceptable salt thereof, is useful as a smooth muscle relaxant.
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