反应详情

6-Bromo-1-(1-methylethyl)-1H-indazole-4-carboxylic acid (80 mg, 0.28 mmol), 3-(aminomethyl)-6-methyl-4-propyl-2(1H)-pyridinone (112 mg, 0.38 mmol) and 1-hydroxy-7-azabenzotriazole (57.7 mg, 0.42 mmol) were stirred in 3 mL of DMSO for 10 min under nitrogen. N-Methylmorpholine (0.12 ml, 1.13 mmol) was added along with EDC (81 mg, 0.42 mmol) and the mixture was stirred at room temperature overnight under nitrogen. Ice-water was added and solids crashed out. Then 10% K2CO3 was added to adjust the pH to about 8-9. Then the reaction was stirred at room temperature for 10 min and let stand for 10 min. Solids were filtered off, dissolved in DMF and water was added. Solids that precipitated out were filtered off, air-dried for 15 min and dried in vacuum oven for 2 h to give the title compound (94 mg, 73%). 1H NMR (400 MHz, DMSO-d6) δ ppm 11.54 (s, 1H) 8.62 (t, J=4.93 Hz, 1H) 8.37 (s, 1H) 8.20 (s, 1H) 7.69 (d, J=1.26 Hz, 1H) 5.91 (s, 1H) 5.06 (dt, J=13.14, 6.57 Hz, 1H) 4.36 (d, J=4.80 Hz, 2H) 2.14 (s, 3H) 1.48-1.56 (m, 2H) 1.47 (s, 3H) 1.45 (s, 3H) 0.89 (t, J=7.33 Hz, 3H); MS(ES) [M+H]+ 445.1, 446.9.

1. stirringThen the reaction was stirred at room temperature for 10 min
2. waitlet stand for 10 min
3. filtrationSolids were filtered off
4. dissolutiondissolved in DMF
5. additionwater was added
6. customSolids that precipitated out
7. filtrationwere filtered off
8. customair-dried for 15 min
9. customdried in vacuum oven for 2 h