title: Pyrano-[2,3b]-pyridines as potassium channel antagonists.
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-pyrano[2,3b]-pyridine-6-carboxylic acid ethyl-phenyl-amide with an IC(50) of 378 nM.
authors: Department of Discovery Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, PO Box 5400, Princeton, NJ 08543-5400, USA. heather.finlay@bms.com
authors: Heather J
authors: HJ
authors: Finlay
authors: John
authors: J
authors: Lloyd
authors: Michael
authors: M
authors: Nyman
authors: Mary Lee
authors: ML
authors: Conder
authors: Tonya
authors: T
authors: West
authors: Paul
authors: P
authors: Levesque
authors: Karnail
authors: K
authors: Atwal
mesh_terms: D000818:Animals; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D051379:Mice; D015394:Molecular Structure; D026902:Potassium Channel Blockers / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D011714:Pyrans / Q000737:chemistry*; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D026902:Potassium Channel Blockers; D011714:Pyrans; D011725:Pyridines