反应详情

温度

100 °C

3-(9-bromo-6-isopropyl-1-oxo-1,2-dihydrobenzo[c]-1,6-naphthyridin-4-yl)prop-2-ynamide (57 mg, 0.15 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (62 mg, 0.30 mmol), and PdCl2(dppp-CH2Cl2 adduct (24 mg, 0.030 mmol) were added to a vial, followed by DMF (1.8 ml) and aqueous sodium carbonate (2M) (0.15 ml, 0.30 mmol). The resulting suspension was purged with argon (subsurface bubbling) for 10 min, then heated in a microwave reactor at 100° C. for 30 min. The mixture was cooled, diluted with DMF, and filtered to remove salts. The solution was purified directly by preparative reverse phase HPLC eluting with an acetonitrile/water (with 0.05% TFA as a modifier) gradient, to afford 3-[6-isopropyl-9-(1-methyl-1H-pyrazol-4-yl)-1-oxo-1,2-dihydrobenzo[c]-1,6-naphthyridin-4-yl]prop-2-ynamide. 1H NMR (500 MHz, DMSO-D6) δ 12.15 (br s, 1H), 10.15 (s, 1H), 8.46 (d, 1H), 8.34 (s, 1H), 8.01-7.98 (overlapping m, 3H), 7.89 (br s, 1H), 7.56 (br s, 1H), 4.08 (septet, 1H), 3.92 (s, 3H), 1.41 (d, 6H). LRMS (ESI) calc'd for (C22H19N5O2) [M+H]+, 386.2; found 386.1.

1. customThe resulting suspension was purged with argon (subsurface bubbling) for 10 min
2. temperatureThe mixture was cooled
3. additiondiluted with DMF
4. filtrationfiltered
5. customto remove salts
6. customThe solution was purified directly by preparative reverse phase HPLC
7. washeluting with an acetonitrile/water (with 0.05% TFA as a modifier) gradient