Sodium Carbonate → N-(2-(2-methoxyphenyl)propyl)-6-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)pyrimidin-4-amine

Participants

Reaction Conditions

Reaction Steps

As shown in step 4-vi of Scheme 4, a mixture of 6-chloro-N-(2-(2-methoxyphenyl)propyl)pyrimidin-4-amine (75.0 mg, 0.270 mmol), 1-methyl-4-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridyl]piperazine (Compound 2007, 90.1 mg, 0.297 mmol), Pd(OAc)2 (1.21 mg, 0.00540 mmol), [3-(2-dicyclohexylphosphanylphenyl)-2,4-dimethoxy-phenyl]sulfonyloxysodium (VPhos, 11.1 mg, 0.0216 mmol), and Na2CO3 (405 μL of 2 M, 0.810 mmol) in IPA (2 mL) was degassed and back-filled with N2 (repeated 2×), then heated to 90° C. for 4 hours. The reaction mixture was filtered through diatomaceous earth and concentrated under reduced pressure. The residue was purified by medium pressure chromatography on silica gel (90-100% EtOAc in hexanes) to give N-(2-(2-methoxyphenyl)propyl)-6-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)pyrimidin-4-amine as a clear, yellow oil (Compound 2013, 48.0 mg, 42% yield): 1H NMR (CDCl3) δ 8.77 (d, J=2.2 Hz, 1H), 8.56 (s, 1H), 8.15 (dd, J=9.0, 2.5 Hz, 1H), 7.28-7.21 (m, 2H), 7.01-6.89 (m, 2H), 6.72 (d, J=9.0 Hz, 1H), 6.60 (s, 1H), 5.09 (bs, 1H), 3.87 (s, 3H), 3.76-3.65 (m, 4H), 3.65-3.46 (m, 3H), 2.62-2.48 (m, 4H), 2.38 (s, 3H), 1.36 (d, J=6.7 Hz, 3H).

Provenance & Evidence