反应详情

3-[3-(2-Furylcarbonylamino)phenyl]-1-perhydro-2H-pyran-2-yl-1H-indazole-5-carboxamide was suspended in 10 mL of toluene and HCl gas was bubbled through for 15 min. The reaction mixture was stirred at room temperature overnight. After neutralization with aqueous NaHCO3, the reaction mixture was evaporated to dryness and purified by preparatory HPLC. (0.111 g, 54% yield): 1H NMR (DMSO d6) δ 13.5 (br s, 1H), 10.3 (s, 1H), 8.64 (s, 1H), 8.4 (s, 1H), 8.11 (br s, 1H), 7.97 (s, 1H), 7.92 (t, 2H), 7.8 (d, 1H), 7.6 (d, 1H), 7.52 (t, 1H), 7.39 (d, 1H), 7.36 (s, 1H), 6.7 (t, 1H); ES-MS (m/z) 347 [M+H]+.

1. customHCl gas was bubbled through for 15 min
2. customAfter neutralization with aqueous NaHCO3, the reaction mixture was evaporated to dryness
3. custompurified by preparatory HPLC