反应详情

温度

50 °C

To a suspension of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6′-methoxy-3,4,4′-trimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (17 mg, 0.036 mmol) in CH3CN (0.7 mL) was added TMSI (10 uL, 0.072 mmol) dropwise at 20° C. The reaction was stirred at 50° C. for 30 min. Additional TMSI (10 uL, 0.072 mmol) was added and the reaction was heated at 50° C. for 2 h. Additional TMSI (10 uL, 0.072 mmol) was added and the reaction was heated at 70° C. for 2 h. MeOH (1.0 mL) was added and the solution was re-partitioned between EtOAc and H2O. The organic layer was washed with NaHSO3 (2×), brine, dried over MgSO4 and evaporated to dryness to yield a white solid that was further purified by preparative TLC (10% MeOH-EtOAc) to yield 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6′-hydroxy-3,4,4′-trimethyl-2,3′-bipyridin-6-yl)cyclopropanecarboxamide (8 mg, 49%). 1H NMR (400 MHz, MeOD) 7.92 (s, 1H), 7.28 (d, J=1.6 Hz, 1H), 7.22 (dd, J=1.7, 8.3 Hz, 1H), 7.14-7.10 (m, 2H), 6.36 (s, 1H), 2.27 (s, 3H), 1.95 (s, 3H), 1.81 (d, J=0.6 Hz, 3H), 1.56 (dd, J=3.9, 7.0 Hz, 2H), 1.14 (dd, J=3.9, 7.0 Hz, 2H). Retention time: 1.49 min; ESI-MS m/z calc. 453.4. found 454.2 (M+H)+.

1. temperaturethe reaction was heated at 50° C. for 2 h
2. temperaturethe reaction was heated at 70° C. for 2 h
3. customthe solution was re-partitioned between EtOAc and H2O
4. washThe organic layer was washed with NaHSO3 (2×), brine
5. dry with materialdried over MgSO4
6. customevaporated to dryness
7. customto yield a white solid
8. customthat was further purified by preparative TLC (10% MeOH-EtOAc)