Tetrahydropyrido[d]pyridazinones - Promising scaffolds for drug discovery
An approach to the synthesis of all possible tetrahydropyrido[d] pyridazinones has been developed. The method relies on the catalytic hydrogenation of the corresponding aromatic counterparts, which were obtained by cyclization of the relevant dibromomethyl-substituted pyridinecarboxylates with hydrazine. The synthetic schemes include 4-5 steps starting from commercially available materials. The tetrahydropyrido[d]pyridazinone scaffolds are combinations of a saturated heterocycle (piperidine) and a privileged aromatic heterocycle (pyridazinone); hence they are promising starting points for the design in medicinal chemistry.
Yaremenko, Anatoliy G.,Volochnyuk, Dmitriy M.,Shelyakin, Vyacheslav V.,Grygorenko, Oleksandr O.
p. 6799 - 6803
(2013/07/26)
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