Sodium Carbonate → HCID 59599417, compound

Participants

Reaction Conditions

Reaction Steps

A reaction mixture of compound (3-4) (361 mg; 0.89 mmol) and 3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-iodopyridin-2-amine (3-5) (378 mg; 0.89 mmol) in 9.0 mL of ethylene glycol dimethylether, anhydrous (DME) was purged with N2 for 15 minutes, then Pd(II)(PPh3)2Cl2 (32 mg, 0.05 mmol) was added and continued to purge with N2 for another 15 minutes. Another 1.0 N Na2CO3 solution (3.9 mL; 3.9 mmol) was added after purging with N2 for 15 minutes. The resulting mixture was stirred at 85° C. under N2 for overnight. The reaction mixture was filtered through Celite pad and washed well with MeOH. The filtrate was concentrated by vacuum. The residue was partitioned between EtOAc (200 mL) and saturated NaHCO3 solution (2×50 mL); brine (50 mL). The organic layer was dried (Na2SO4), then concentrated by vacuum. The residue was purified by Dionex system (25% to 95% MeCN:H2O w 0.1% HOAc buffer) to collect the desired fraction to afford 147 mg of (3-6) as a white solid (28% yield). 1H NMR (400 MHz, DMSO-D6) δ ppm 1.34-1.39 (m, 9H) 1.70-1.77 (m, 2H) 1.79 (d, J=6.57 Hz, 3H) 3.06 (d, J=12.63 Hz, 2H) 3.62 (s, 2H) 4.03 (s, 2H) 4.79 (s, 1H) 5.66 (s, 2H) 6.08 (d, J=6.82 Hz, 1H) 6.86 (d, J=1.52 Hz, 1H) 7.44 (t, J=8.72 Hz, 1H) 7.51-7.58 (m, 2H) 7.58-7.65 (m, 2H) 7.73 (d, J=1.52 Hz, 1H) 7.78 (s, 1H). LCMS calcd for C27H32Cl2FN5O4 (M+H) 581, found 581. HPLC purity 87%.

Provenance & Evidence