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Pyridazines. Part 36: Synthesis and antiplatelet activity of 5-substituted-6-phenyl-3(2H)-pyridazinones
Authors:Coelho Alberto  Sotelo Eddy  Fraiz Nuria  Yáñez Matilde  Laguna Reyes  Cano Ernesto  Raviña Enrique
Affiliation:Departamento de Qui;mica Orgánica, Laboratorio de Qui;mica Farmacéutica, Drug Research & Development Group, Universidade de Santiago de Compostela, 15782-, Santiago de Compostela, Spain.
Abstract:A convenient and efficient palladium-catalysed retro-ene-assisted method has been developed to prepare a series of 5-substituted-6-phenyl-3(2H)-pyridazinones as potential antiplatelet drugs. The most active compounds were those that contain a 3-phenyl-3-oxo-propenyl fragment or a phenylthio group at position 5 of the heterocyclic ring.
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