(S)-3-Amino-1-benzylpiperidine → (S)-6-(1-benzylpiperidin-3-ylamino)-8-((4-methoxybenzyl)(phenyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile

Participants

Reaction Conditions

Reaction Steps

6-Chloro-8-((4-methoxybenzyl)(phenyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile (100 mg, 0.257 mmol) from example XXXI, step (1b) and (S)-3-amino-1-benzylpiperidine (195 mg, 1.026 mmol) were combined in a 1-dram vial and heated at 160° C. for 6 h. The reaction was cooled to room temperature, dissolved in DCM (2 mL) and loaded onto to a 12 g silica gel column and eluted with 5%-100% EtOAc/heptane to give (S)-6-(1-benzylpiperidin-3-ylamino)-8-((4-methoxybenzyl)(phenyl)amino)imidazo[1,2-b]pyridazine-3-carbonitrile (55 mg, 40%). LCMS m/z (544, M+1).

Provenance & Evidence