Sodium Carbonate → (R)-4-(8-(4-benzoyl-2-methylpiperazin-1-yl)pyrido[2,3-d]pyridazin-5-yl)benzonitrile

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Reaction Steps

Using methods described in Example 6, and starting with (R)-(4-(5-chloropyrido[2,3-d]pyridazin-8-yl)-3-methylpiperazin-1-yl)(phenyl)methanone 79 (360 mg, 979 mmol), 2 M sodium carbonate (979 μl, 196 mmol), 4-cyanophenylboronic acid (216 mg, 1.47 mmol), and tetrakis(triphenylphosphine)palladium (57 mg, 49 μmol) afforded (R)-4-(8-(4-benzoyl-2-methylpiperazin-1-yl)pyrido[2,3-d]pyridazin-5-yl)benzonitrile 85 (138 mg, 32% yield) after chromatographic purification. MS 434.2 (calc'd) 435.1 (M+H, found).

Provenance & Evidence