Potassium Carbonate → HCID 51030830, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-chloro-5-phenyl-N-(pyridin-2-ylmethyl)quinazolin-4-amine (300 mg, 0.87 mmol) in DMF (20 mL) and H2O (2 mL) under nitrogen was added 2-methoxypyrimidin-5-ylboronic acid (199 mg, 1.30 mmol) and potassium carbonate (239 mg, 1.73 mmol). The resulting mixture was degassed with nitrogen for 15 min and then tetrakis(triphenylphosphine)palladium (100 mg, 0.086 mmol) was added. Upon completion of addition, the reaction mixture was again degassed with nitrogen for 10 min. After this time, the reaction mixture was heated to 90° C. where it stirred for 12 h. After this time, the reaction mixture was allowed to cool to room temperature and then quenched by the addition of water. The reaction mixture was extracted with ethyl acetate and the organic layer was washed successively with water and brine. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The resulting concentrate was purified by preparative HPLC to afford 2-(2-methoxypyrimidin-5-yl)-5-phenyl-N-(pyridin-2-ylmethyl)quinazolin-4-amine (205 mg) as an off-white solid. Preparative HPLC Conditions: Column: Sunfire C18 (250×19 mm), Mobile Phase A: 0.1% TFA in H2O, Mobile Phase B: CH3CN, Gradient: 0 to 40% B over 35 min, 100% B for 10 min., Flow Rate: 14 mL/min., Retention time: 28 min. 1H NMR (400 MHz, DMSO-d6) δ (ppm): 9.50 (s, 2H), 8.27 (d, J=4.7 Hz, 1H), 7.92 (d, J=3.6 Hz, 2H), 7.85-7.81 (t, J=8.0 Hz, 1H), 7.60-7.52 (m, 5H), 7.42-7.38 (m, 2H), 7.34-7.31 (m, 1H), 4.83 (d, J=4.2 Hz, 2H), 4.04 (s, 3H). LCMS Method O: retention time 1.45 min, [M+1]=421.2. HPLC Method B: purity 98.7%, retention time 5.53 min.

Provenance & Evidence