反应详情

4-chloro-6-(2,2,2-trifluoro-1-(3′-fluorobiphenyl-4-yl)ethoxy)pyrimidin-2-amine (80 mg, 0.20 mmol), (S)-methyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)-2-(tritylamino)propanoate (113 mg, 0.20 mmol), dichlorobis(triphenylphosphine)palladium (2 mg, 0.03 mmol), and Na2CO3 (42 mg, 0.40 mmol) were added to a mixture of ethanol (5 mL) and water (5 mL) in a round-bottom flask. The flask was heated to reflux for 8 hours. The reaction mixture was cooled and solvent was removed. The residue was purified by chromatography to get (2S)-methyl 3-(4-(2-amino-6-(2,2,2-trifluoro-1-(3′-fluorobiphenyl-4-yl)ethoxy)pyrimidin-4-yl)phenoxy)-2-(tritylamino)propanoate, which was deprotected by TFA and LiOH respectively to afford 50 mg of (2S)-2-amino-3-(4-(2-amino-6-(2,2,2-trifluoro-1-(3′-fluorobiphenyl-4-yl)ethoxy)pyrimidin-4-yl)phenoxy)propanoic acid as the HCl salt. 1H NMR (300 MHz, CD3OD): δ 7.95 (m, 2H), 7.71 (s, 3H), 7.61 (m, 2H), 7.48 (m, 2H), 7.26 (m, 1H), 7.11 (m, 1H), 7.01 (s, 1H), 6.78 (m, 1H), 4.65 (m, 1H), 4.40-4.55 (m, 3H); M+1=543.

1. temperatureThe flask was heated
2. temperatureto reflux for 8 hours
3. temperatureThe reaction mixture was cooled
4. customsolvent was removed
5. customThe residue was purified by chromatography