反应详情

温度

80 °C

To a 20 mL vial were added ethyl 1-((1-(4-(furan-3-yl)benzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)cyclopentanecarboxylate (60 mg, 0.1 mmol), THF (1.3 mL) and MeOH (1.3 mL) followed by LiOH (1.4 mL, 1 M). The reaction mixture was heated at 80° C. for 1.5 h. The mixture was cooled to RT and concentrated to dryness. Water (5 mL) was added and the pH was adjusted to ˜5-6 using 1 M HCl. To the mixture was added DCM (5 mL) and the mixture was stirred for 1 h at RT. The organic layer was separated then concentrated to dryness. The resulting residue was purified using FCC or reverse phase HPLC to provide the title compound. MS (ESI): mass calcd. for C35H31N3O4, 557.23; m/z found, 558.2 [M+H]+. 1H NMR (500 MHz, CDCl3) δ 8.22 (d, J=8.5, 1H), 8.10 (d, J=8.5, 1H), 7.84 (d, J=8.1, 1H), 7.77-7.69 (m, 3H), 7.58-7.54 (m, 1H), 7.48-7.46 (m, 1H), 7.42 (d, J=8.1, 2H), 7.35-7.34 (m, 1H), 7.16 (d, J=8.8, 1H), 7.04-7.01 (m, 3H), 6.65 (s, 1H), 5.42 (s, 2H), 5.35 (s, 2H), 3.12 (s, 2H), 2.32-2.26 (m, 2H), 1.73-1.68 (m, 2H), 1.65-1.52 (m, 4H).

1. temperatureThe mixture was cooled to RT
2. concentrationconcentrated to dryness
3. additionWater (5 mL) was added
4. additionTo the mixture was added DCM (5 mL)
5. customThe organic layer was separated
6. concentrationthen concentrated to dryness
7. customThe resulting residue was purified