Pyrano-[2,3b]-pyridines as potassium channel antagonists |
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Authors: | Finlay Heather J Lloyd John Nyman Michael Conder Mary Lee West Tonya Levesque Paul Atwal Karnail |
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Institution: | Department of Discovery Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, PO Box 5400, Princeton, NJ 08543-5400, USA. heather.finlay@bms.com |
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Abstract: | The design and synthesis of a series of highly functionalized pyrano-2,3b]-pyridines is described. These compounds were assayed for their ability to block the I(Kur) channel encoded by the gene hKV1.5 in patch-clamped L-929 cells. Six of the compounds in this series showed sub-micromolar activity, the most potent being 4-(4-ethyl-benzenesulfonylamino)-3-hydroxy-2,2-dimethyl-3,4-dihydro-2H-pyrano2,3b]-pyridine-6-carboxylic acid ethyl-phenyl-amide with an IC(50) of 378 nM. |
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