反应详情

To a suspension of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(2′-methoxy-3,4,5′-trimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (75 mg, 0.16 mmol) in CH3CN (3 mL) was added TMSI (46 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-3,4,5′-trimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (67 mg, 92%). 1H NMR (400 MHz, MeOD) 7.89 (s, 1H), 7.31-7.27 (m, 2H), 7.23-7.19 (m, 2H), 7.12 (d, J=8.3 Hz, 1H), 2.25 (s, 3H), 2.03 (s, 3H), 1.97 (s, 3H), 1.56 (dd, J=3.9, 7.0 Hz, 2H), 1.13 (dd, J=3.8, 6.9 Hz, 2H). Retention time: 1.52 min; ESI-MS m/z calc. 453.4. found 454.5 (M+H)+.

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