反应详情

温度

100 °C

To a solution of benzyl(3-(benzyloxy)-2-((3-(4-fluorophenyl)-2-oxopropyl)carbamoyl)-4-oxo-6,7,8,9-tetrahydro-7,10-ethanopyrimido[1,2-a]azepin-10(4H)-yl)carbamate, Intermediate 7 (120 mg, 0.188 mmol) in toluene was added Lawesson's Reagent (76 mg, 0.188 mmol) and stirred for 15 min at room temperature, 30 min at 60° C. and 2 h at 100° C. The resulting clear yellow mixture was then cooled, concentrated and purified by preparative HPLC to provide the title compound (60 mg, 0.094 mmol, 50.2% yield) as a yellow solid. 1H NMR (400 MHz, CDCl3) δ ppm 7.79 (1H, s), 7.47-7.52 (2H, m), 7.29-7.39 (8H, m), 7.17 (2H, dd, J=8.28, 5.27 Hz), 6.94-7.07 (3H, m), 5.38 (2H, s), 5.09 (2H, s), 4.09-4.19 (4H, m), 2.69-2.84 (2H, m), 2.49 (1H, br. s.), 1.94-2.04 (4H, m), 1.65-1.76 (2H, m). LCMS (M+H)=637.27.

1. temperatureThe resulting clear yellow mixture was then cooled
2. concentrationconcentrated
3. custompurified by preparative HPLC