Diisopropylethylamine → HCID 178428849, compound

Participants

Reaction Steps

138 mg (0.54 mmol) spiro[piperidin-4,4′-pyrido[2,3-d][1,3]oxazin]-2′(1′H)-one hydrochloride, 180 mg (0.54 mmol) 5-(6-chloropyrimidin-4-yloxy)-7-methyl-2-(tetrahydrofuran-3-yl)-1H-benzo[d]imidazole and 280 μL (1.62 mmol) DIPEA in 5.0 mL DMF were stirred overnight at 60° C. The reaction mixture was combined with ice water. The precipitate formed was suction filtered and purified by chromatography. The fractions containing product were combined and evaporated down i.vac. to leave the aqueous residue. This was neutralised with an aqueous NaHCO3 solution and extracted with ethyl acetate. The organic phase was dried and evaporated down i.vac.

Provenance & Evidence