10176-63-3Relevant academic research and scientific papers
IMIDAZOPYRIDINES, COMPOSITIONS AND USE
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, (2008/06/13)
1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-ones having an aryl or heteroaryl group in the 6-position, useful as phosphodiesterase inhibitors, are prepared by reacting a 2-amino-5-(aryl or heteroaryl)pyridine-3-carboxylic acid with diphenylphosphoryl azide. The compounds are of the formula where R1 and R3 are hydrogen or lower-alkyl, R5 is lower-alkyl or fluorinated lower-alkyl, and Ar is 4-or 3-pyridinyl, or N-oxides thereof, or phenyl or substituted phenyl.
Imidazopyridines, their preparation and use
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, (2008/06/13)
Novel 1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-ones having an aryl or heteroaryl group in the 6-position, useful as phosphodiesterase inhibitors, are prepared by reacting a 2-amino-5-(aryl or heteroaryl)pyridine-3-carboxylic acid with diphenylphosphoryl azide. The compounds are of the formula STR1 where R1 and R3 are hydrogen or lower-alkyl, R5 is lower-alkyl or fluorinated lower-alkyl, and Ar is 4- or 3-pyridinyl, or phenyl or substituted phenyl.
