Diisopropylethylamine → 1-(6-(7-chloro-2-methyl-1H-benzo[d]imidazol-5-yloxy)pyrimidin-4-yl)spiro[piperidin-4,4'-pyrido[2,3-d][1,3]oxazin]-2'(1'H)-one

Participants

Reaction Steps

90 mg (0.35 mmol) spiro[piperidin-4,4′-pyrido[2,3-d][1,3]oxazin]-2′(1′H)-one hydrochloride, 110 mg (0.37 mmol) 7-chloro-5-(6-chloropyrimidin-4-yloxy)-2-methyl-1H-benzo[d]imidazole and 0.14 mL (0.81 mmol) DIPEA in 2.0 mL DMF were stirred for 3 h at RT and 4 h at 40° C. The reaction mixture was purified by preparative HPLC-MS. The fractions containing product were combined and freeze-dried.

Provenance & Evidence