反应详情

To a solution of ethyl 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)amino)-2-fluorophenyl)acetate (0.075 g, 0.18 mmol) in THF (2 mL) was added borane dimethyl sulfide complex solution (2.0 M in THF, 0.027 g, 0.35 mmol) at 0° C. The reaction mixture was slowly warmed to rt and stirred overnight. After this time, the mixture was quenched with 0.5 N HCl, and then basified with saturated aqueous sodium bicarbonate. The mixture was extracted with ethyl acetate and the residue purified by column chromatography (silica, dichloromethane/methanol), followed by the formation of the hydrochloride salt to afford the title compound (0.442 g, 44%) as a tan solid. MW=382.86. 1H NMR (DMSO-d6, 500 MHz) δ 14.11 (s, 1H), 9.78 (s, 1H), 7.92 (t, J=1.8 Hz, 1H), 7.75-7.71 (m, 1H), 7.69-7.65 (m, 1H), 7.61 (t, J=7.9 Hz, 1H), 7.42 (t, J=7.9 Hz, 1H), 7.27-7.19 (m, 2H), 7.12 (s, 1H), 3.63 (1, J=6.9 Hz, 2H), 3.16 (t, J=7.6 Hz, 2H), 2.93 (t, J=7.6 Hz, 2H), 2.78 (t, J=6.9 Hz, 2H), 2.24 (quin, J=7.6 Hz, 2H); APCI MS m/z 383 [M+H]+.

1. customAfter this time, the mixture was quenched with 0.5 N HCl
2. extractionThe mixture was extracted with ethyl acetate
3. customthe residue purified by column chromatography (silica, dichloromethane/methanol)