Benzazine derivatives phosphodiesterase 4 inhibitors
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United States of America Patent
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-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Jul 13, 2000
filing date -
Dec 19, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
##STR1## Compounds of formula (I) wherein A is an orthocondensed heterocycle optionally substituted by certain substituents and necessarily substituted by a --B--Cy group where the variables are as defined in the specification and the N.fwdarw.O derivatives and pharmaceutically acceptable salts thereof are phosphodiesterase-4 inhibitors.
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