反应详情

Step 3—Synthesis of compound wh: 5-Methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-amine (0.164 g, 0.000548 mol), Tetrakis(triphenylphosphine)palladium(0) (0.0931 g, 0.0000806 mol) Sodium carbonate (0.0887 g, 0.000837 mol) and Potassium acetate (0.1061 g, 0.001081 mol) were combined, nitrogen purged three times, added (S)-tert-butyl 2-chloro-4-(3-methylmorpholino)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8H)-carboxylate (0.219 g, 0.000594 mol) in dry Acetonitrile (4.60 mL, 0.0881 mol) and deoxygenated Water (2.80 mL, 0.155 mol) and the reaction was microwaved on 200 watts, 120° C. for 30 minutes on a CEM microwave. The reaction mixture was cooled to room temperature, diluted with water, extracted three times with 10% MeOH in dichloromethane, dried over Magnesium sulfate, filtered, concentrated, chromatographed through silica gel (120 g, 0-5% MeOH in dichloromethane), and purified by HPLC. 1H NMR (400 MHz, DMSO) δ 8.38 (t, J=8.8, 2H), 7.53 (d, J=8.7, 2H), 6.62 (d, J=1.0, 1H), 5.41 (s, 2H), 4.52 (t, J=15.6, 2H), 4.16 (d, J=6.7, 1H), 3.89 (d, J=10.8, 1H), 3.72-3.57 (m, 5H), 3.45 (dd, J=17.3, 7.1, 2H), 2.68 (d, J=6.6, 2H), 1.99 (d, J=0.9, 3H), 1.45 (d, J=7.9, 9H), 1.27 (d, J=6.6, 3H). LC/MS-m/z+506.3 (M+H)+

1. customnitrogen purged three times
2. customthe reaction was microwaved on 200 watts, 120° C. for 30 minutes on a CEM microwave
3. extractionextracted three times with 10% MeOH in dichloromethane
4. dry with materialdried over Magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. customchromatographed through silica gel (120 g, 0-5% MeOH in dichloromethane)
8. custompurified by HPLC