HCID 59515506, compound → 7-(4-chlorophenyl)-8-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-3,6(2H,5H)-dione

Participants

Reaction Steps

To the solution of 6-chloro-7-(4-chlorophenyl)-8-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one (28 mg, 0.078 mmol), prepared as described in Example 8B, in THF (3 ml) was added potassium trimethylsilyloxide, TMSOK, (36 mg, 0.28 mmol). The reaction mixture was refluxed for 1 hour. After this time, the solution was cooled to RT. The solution was concentrated under reduced pressure. The resulting crude product was purified by reverse phase HPLC to give the title compound, 7-(4-chlorophenyl)-8-(pyridin-4-yl)-[1,2,4]triazolo[4,3-b]pyridazine-3,6(2H,5H)-dione, (8 mg, 22%) as a yellow solid.

Provenance & Evidence