反应详情

温度

90 °C

Phenol (7, Intermediate I) (0.850 g, 3.20 mmol) and K2CO3 (1.32 g, 9.60 mmol) were added to a solution of (1-acetylpiperidin-4-yl)methyl 4-methylbenzenesulfonate (1.0 g, 3.20 mmol) in DMF (10 mL). The reaction mixture was heated at 90° C. overnight. The reaction mixture was diluted with EtOAc and washed with water and brine. Organic layer was dried over anhydrous Na2SO4) and concentrated under reduced pressure to give after purification by column chromatography to give (R)-tert-butyl (3-(3-((1-acetylpiperidin-4-yl)methoxy)phenyl)-3-hydroxypropyl)carbamate as a colorless semi solid. Yield (600 mg, 46%); 1H NMR (400 MHz, DMSO-d6); δ 7.18 (d, J=4.0 Hz, 1H), 6.93 (s, 1H), 6.86 (d, J=7.6 Hz, 1H), 6.76 (d, J=6.0 Hz, 1H), 5.17 (d, J=4.4 Hz, 1H), 4.50 (d, J=4.8 Hz, 1H), 4.39 (d, J=11.6 Hz, 1H), 3.81 (d, J=6.4 Hz, 2H), 3.06-2.94 (m, 4H), 1.99 (s, 3H), 1.78 (t, J=14 Hz, 2H), 1.65 (t, J=7.2, 2H), 1.36 (s, 9H), 1.23 (s, 3H), 1.55-0.88 (m, 1H); MS: m/z 407.05 [M+H]+.

1. washwashed with water and brine
2. dry with materialOrganic layer was dried over anhydrous Na2SO4) and
3. concentrationconcentrated under reduced pressure
4. customto give
5. customafter purification by column chromatography