反应详情

A mixture of (S)-1-(7-fluoro-2-(pyridin-2-yl)quinolin-3-yl)ethanamine (85 mg, 0.32 mmol), 4,6-dichloro-5-cyanopyrimidine (55 mg, 0.32 mmol, 1.0 eq) and N,N-diisopropylethylamine (68 μl, 0.38 mmol, 1.2 eq) in THF (3 mL) was stirred at rt for 30 min before heating to 50° C. After 4 h, the mixture was concentrated and purified by column chromatography (EtOAc/1/1) to give a white solid, which was treated with saturated NH3 in dioxane (3 mL) in sealed tube at 110° C. overnight. The reaction mixture was concentrated and purified by reverse phase HPLC (MeCN/H2O/0.1% TFA) and lyophilized to give a white powder 4-amino-6-((S)-1-(7-fluoro-2-(pyridin-2-yl)quinolin-3-yl)ethylamino)pyrimidine-5-carbonitrile (19 mg, 15%). 1H NMR (500 MHz, CD3OD) δ ppm 1.78 (d, J=6.85 Hz, 3H) 5.82 (q, J=6.85 Hz, 1H) 7.71 (td, J=8.80, 2.45 Hz, 1H) 7.89 (dd, J=9.66, 2.32 Hz, 1H) 8.10 (ddd, J=7.83, 5.62, 0.98 Hz, 1H) 8.19 (s, 1H) 8.27 (dd, J=9.05, 5.87 Hz, 1H) 8.45 (d, J=7.83 Hz, 1H) 8.63 (td, J=7.95, 1.47 Hz, 1H) 8.94 (s, 1H) 9.03-9.09 (m, 1H). Mass Spectrum (ESI) m/e=386 (M+1).

1. temperaturebefore heating to 50° C
2. waitAfter 4 h
3. concentrationthe mixture was concentrated
4. custompurified by column chromatography (EtOAc/1/1)
5. customto give a white solid, which
6. concentrationThe reaction mixture was concentrated
7. custompurified by reverse phase HPLC (MeCN/H2O/0.1% TFA)