Pyridine derivatives
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United States of America Patent
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Dec 2, 2003
Grant Date -
N/A
app pub date -
Nov 27, 2000
filing date -
Jul 11, 1997
priority date (Note) -
Expired
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Abstract
A compound of formula I ##STR1## wherein X represents an optionally halo-substituted (C.sub.2-4)alkynylene group bonded via vicinal unsaturated carbon atoms.
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