Potassium Phosphate, Tribasic → tert-butyl 4-(6-(6-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-2-methyl-3-oxo-2,3-dihydropyridazin-4-ylamino)pyridin-3-yl)piperidine-1-carboxylate

Participants

Reaction Steps

This reaction was carried out under similar conditions to those described above in step 7 of the preparation of Example 6. A solution of tert-butyl 4-(6-(6-chloro-2-methyl-3-oxo-2,3-dihydropyridazin-4-ylamino)pyridin-3-yl)piperidine-1-carboxylate (150 mg, 357 mmol), 2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate (177 mg, 357 μmol), xPhos (17 mg, 35.7 mmol) and potassium phosphate (190 mg, 893 mmol) in 10 ml of dioxane/water (9:1) was degassed with nitrogen for 10 minutes and bis(dibenzylideneacetone)palladium (0) (10.3, 17.9 mmol) was added.

Provenance & Evidence