1-azaindolizine derivatives, synthetic intermediates thereof and antiallergic agents containing 1-azaindolizine derivatives
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United States of America Patent
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May 12, 1992
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N/A
app pub date -
Jun 26, 1991
filing date -
Dec 26, 1988
priority date (Note) -
Expired
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Abstract
Novel 1-azaindolizine derivatives having excellent antiallergic action, synthetic intermediates thereof and antiallergic agents containing 1-azaindolizine derivatives.
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