Reaction Steps
(S)-1-ethyl-3-(4-(4-(3-ethylmorpholino)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-2-yl)phenyl)urea (0.251 g, 0.611 mmol) in dry N,N-Dimethylformamide (3.00 mL, 38.7 mmol) was added N,N-Diisopropylethylamine (0.310 mL, 1.78 mmol) followed by Acetyl chloride (0.0650 mL, 0.913 mmol). The reaction mixture was stirred for overnight. The reaction mixture was purified by HPLC. 1H NMR (400 MHz, DMSO) δ 8.68 (s, 1H), 8.17 (d, J=7.6, 2H), 7.48 (d, J=7.9, 2H), 6.22 (d, J=6.1, 1H), 4.78-4.63 (m, 1H), 4.44 (dd, J=82.7, 18.2, 1H), 3.97 (s, 1H), 3.85 (d, J=11.1, 1H), 3.78 (d, J=11.6, 1H), 3.67 (d, J=7.4, 2H), 3.45 (dd, J=38.1, 25.8, 3H), 3.29 (m, 1H), 3.16-3.07 (m, 2H), 2.68 (dd, J=47.0, 37.1, 2H), 2.12 (s, 3H), 1.78 (ddd, J=27.5, 13.8, 7.0, 2H), 1.06 (t, J=7.2, 3H), 0.83 (dd, J=12.0, 7.4, 3H). LC/MS-m/z+453.2 (M+H)+.
