Chloride → 6-(6-aminopyridin-3-yl)-N4-{4-[(2-methylpyridin-4-yl)oxy]phenyl}pyrimidine-2,4-diamine

Participants

Reaction Conditions

Reaction Steps

To a mixture of 6-chloro-N4-(4-{[2-methylpyridin-4-yl]oxy}phenyl)pyrimidine-2,4-diamine (2.0 g, 6.1 mmol) and 2-Amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (1.6 g, 7.3 mmol) in DMF (30 mL) was added aqueous Na2CO3 (2 M, 9.0 mL) and 1,1′-bis(diphenylphosphino)ferrocenepalladium (It) chloride (223 mg, 0.3 mmol). The resulting mixture was degassed for 10 min before it was heated at 80° C. overnight. The resulting mixture was cooled to rt before it was concentrated under vacuo and dissolved in EtOAc. The resulting mixture was washed with water and brine and the organic layer was dried over Na2SO4. Removal of the solvent under vacuo gave the crude material, which was purified with 40 M biotage eluting with 100% EtOAc first and then with 95% CH2Cl2 and 5% 2 N ammonia in MeOH to provide the title compound as an off-white solid (1340 mg, 57%): 1H NMR (DMSO-d6): δ 9.20 (s, 1H), 8.51 (dd, 1H), 8.27 (d, 1H), 7.81-7.88 (m, 3H), 7.03-7.06 (m, 2H), 6.72 (d, 1H), 6.68 (dd, 1H), 6.47 (dd, 1H), 6.33 (s, 1H), 6.32 (s, 2H), 6.23 (s, 2H), 2.39 (s, 3H) ppm; MS ES 386 (M+H)+, RT=1.06 min.

Provenance & Evidence