Inhibitors of cyclic AMP phosphodiesterase. 3. Synthesis and biological evaluation of pyrido and imidazolyl analogs of 1, 2, 3, 5-tetrahydro-2-oxoimidazo [2, 1-b] …

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~%

~%

~%

~0%

~89%

~65%

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~%

~50%

~94%

~64%

~84%

~81%

~99%

~90%