N-hydroxyurea derivative and pharmaceutical composition containing the same
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United States of America Patent
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Sep 18, 2001
Grant Date -
N/A
app pub date -
May 11, 2000
filing date -
Nov 11, 1997
priority date (Note) -
Expired
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Abstract
A novel N-hydroxyurea derivative represented by formula (I) and having antiallergic and anti-inflammatory effects, i.e., N-hydroxy-N-[6-(3-pyridylmethyl)-2H-1-benzopyran-3-ylmethyl]urea: ##STR1## and medicines containing the above urea derivative or a pharmacologically acceptable salt thereof, or a hydrate or solvate thereof as the active ingredient, particularly antiallergic or anti-inflammatory agent, especially antiasthmatic.
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