反应详情

温度

140 °C

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)-1H-indazole (40 mg, 0.128 mmol), 5-bromo-N-(2-hydroxyethyl)pyridine-2-sulfonamide (43.2 mg, 0.154 mmol), PdCl2(dppf) (9.38 mg, 0.013 mmol), sodium bicarbonate (0.274 mL, 0.513 mmol), and dioxane (2 mL) were mixed in a 10 mL vial to give an orange suspension. The vial was sealed and then heated to 140° C. for 20 minutes in a microwave reactor. The reaction mixture was subsequently filtered and the product was purified by preparative HPLC, eluting with a gradient of 25-50% ACN (containing 0.035% TFA) in H2O (containing 0.05% TFA). The pure fractions were lyophilized to give a TFA salt of the title compound as a white solid (16.4 mg, 25.6%). 1H NMR (400 MHz, DMSO-d6) δ ppm 3.05 (q, J=6.48 Hz, 2H), 3.40-3.46 (m, 7H), 7.70 (d, J=1.01 Hz, 1H), 7.96 (t, J=5.81 Hz, 1H), 8.08 (dd, J=8.21, 0.88 Hz, 2H), 8.45 (s, 1H), 8.51 (dd, J=8.21, 2.40 Hz, 1H), 9.15 (dd, J=2.27, 1.01 Hz, 1H); ESI-MS m/z [M+H]+ calc'd for C15H13F3N4O3S, 387.1. found 387.2.

1. customto give an orange suspension
2. customThe vial was sealed
3. filtrationThe reaction mixture was subsequently filtered
4. customthe product was purified by preparative HPLC
5. washeluting with a gradient of 25-50% ACN (containing 0.035% TFA) in H2O (containing 0.05% TFA)