反应详情

温度

50 °C

To a suspension of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(2′-methoxy-4,5′-dimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (70 mg, 0.15 mmol) in CH3CN (3 mL) was added TMSI (44 uL, 0.30 mmol) dropwise at 20° C. The reaction was stirred at 50° C. for 30 min. MeOH (1.0 mL) was added and the solution was re-partitioned between EtOAc and H2O, washed with NaHSO3 (2×), brine, dried over MgSO4 and evaporated to dryness to yield a white solid. The crude material was further purified by column chromatography (0-10% MeOH-EtOAc) to yield 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(2′-hydroxy-4,5′-dimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (62 mg, 91%). H NMR (400 MHz, MeOD) 7.81 (s, 2H), 7.65 (s, 1H), 7.31 (d, J=1.5 Hz, 1H), 7.25 (dd, J=1.7, 8.3 Hz, 1H), 7.17-7.14 (m, 2H), 2.29 (s, 3H), 2.03 (s, 3H), 1.57 (dd, J=4.0, 7.0 Hz, 2H), 1.15 (dd, J=4.0, 7.0 Hz, 2H). Retention time: 1.42 min; ESI-MS m/z calc. 439.4. found 440.5 (M+H)+.

1. customthe solution was re-partitioned between EtOAc and H2O
2. washwashed with NaHSO3 (2×), brine
3. dry with materialdried over MgSO4
4. customevaporated to dryness
5. customto yield a white solid
6. customThe crude material was further purified by column chromatography (0-10% MeOH-EtOAc)