反应详情

温度

80 °C

To a mixture of the (S)-tert-butyl 2-chloro-6-((1-methoxy-1-oxopropan-2-yl)amino)pyrimidine-4-carboxylate (0.347 g, 1.10 mmol) in dioxane (10 mL) was added 2-(4-(4-fluorophenoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.348 g, 1.11 mmol), 2M aqueous Na2CO3 (1.10 mL, 2.20 mmol) and PdCl2(dppf) (0.050 g, 0.061 mmol). The reaction vessel was flushed with argon, sealed, and heated at 80° C. for 2 days. After cooling, the reaction mixture was evaporated in vacuo and the residue chromatographed over silica gel with 10-40% EtOAc in hexanes. The product fractions were evaporated in vacuo to give (S)-tert-butyl 2-(4-(4-fluorophenoxy)phenyl)-6-((1-methoxy-1-oxopropan-2-yl)amino)pyrimidine-4-carboxylate as an off-white foam (0.316 g, 0.676 mmol, 61% yield). 1H NMR (400 MHz, DMSO-d6): 8.31-8.25 (3H, m), 7.32-7.24 (2H, m), 7.19-7.14 (2H, m), 7.06 (2H, d, J=9.0 Hz), 7.04 (1H, s), 4.60-4.51 (1H, m), 3.63 (3H, s), 1.56 (9H, s), 1.44 (3H, d, J=7.2 Hz). LC/MS: m/z=468.2 [M+H]+.

1. customThe reaction vessel was flushed with argon
2. customsealed
3. temperatureAfter cooling
4. customthe reaction mixture was evaporated in vacuo
5. customthe residue chromatographed over silica gel with 10-40% EtOAc in hexanes
6. customThe product fractions were evaporated in vacuo