6,5-fused aromatic ring systems having enhanced phosphodiesterase IV inhibitory activity
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United States of America Patent
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Jun 13, 2000
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N/A
app pub date -
Apr 10, 1997
filing date -
Apr 10, 1996
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Expired
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Abstract
Novel compounds which are effective PDE IV inhibitors are disclosed. The compounds possess improved PDE IV inhibition as compared to theophylline or rolipram, with improved selectivity with regard to, e.g., PDE V inhibition. The present invention includes compounds of Formula I: ##STR1##
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