反应详情

To a solution of 1-[3-(5-bromo-2-hydroxy-benzyl)-azetidin-1-yl]-2,2,2-trifluoro-ethanone (59 mg, 0.17 mmol) in DMF (10 mL) was added KI (40 mg, 0.24 mmol), Cs2CO3 (170 mg, 0.51 mmol) and 2-bromomethyl-5-trifluoromethyl-furan (56 mg, 0.24 mmol). After 16 h, saturated sodium bicarbonate solution and EtOAc were added. The aqueous portion was extracted three times with EtOAc and the combined organic were dried (Na2SO4) and concentrated. The crude product was purified by RP HPLC (basic conditions) to provide the title compound (76 mg, 91%). MS (ESI): mass calcd. for C18H14BrF6NO3, 486.2; m/z found, 488.1 [M+H]+. 1H NMR (CDCl3): 7.34 (dd, J=8.7, 2.5 Hz, 1H), 7.21 (d, J=2.5 Hz, 1H), 6.89-6.76 (m, 2H), 6.48 (d, J=3.4 Hz, 1H), 5.02 (s, 2H), 4.40 (dd, J=9.6, 8.4 Hz, 1H), 4.22-4.11 (m, 1H), 4.08-4.02 (m, 1H), 3.84 (dd, J=10.7, 5.7 Hz, 1H), 3.11-2.97 (m, 1H), 2.97-2.82 (m, 2H).

1. extractionThe aqueous portion was extracted three times with EtOAc
2. dry with materialthe combined organic were dried (Na2SO4)
3. concentrationconcentrated
4. customThe crude product was purified by RP HPLC (basic conditions)