反应详情

温度

90 °C

A solution o f 5-[3-(tert-butyl-dimethyl-silanyloxy)4-(4-fluoro-phenyl)-butyl]-pyrrolidin-2-one (150 mg, 0.41 mmol) in DMF (5 mL) was added to NaH (60% by weight in oil, 16 mg, 0.41 mmol) in DMF (10 mL). After 1.5 h, 7-bromoheptanenitrile (78 mg, 0.41 mmol) in DMF (5 mL) was added and the reaction mixture was stirred at 90° C. for 2.5 h. Water (20 mL) was added and the aqueous solution was washed with EtOAc (4×15 mL). The combined organic solutions were washed with water (2×15 mL), dried (MgSO4), filtered, and concentrated. The residue was purified by medium pressure chromatography (1:1 hexanes:EtOAc) provided 7-{2-[3-(tert-butyl-dimethyl-silanyloxy)-4-(4-fluoro-phenyl)-butyl ]-5-oxo-pyrrolidin-1-yl}-heptanenitrile (161 mg). 1H NMR (CDCl3) δ7.09 (m, 2H), 6.95 (m, 2H), 3.81 (m, 1H), 3.54 (m, 2H), 2.86 (m, 1H), 2.68 (m, 2H), 2.29 (m, 4H), 2.06 (m, 1H), 1.74-1.23 (m, 13H), 0.85 (s, 9H), 0.04 (m, 3H), 0.19 (m, 3H); MS 475.1 (M+1).

1. washthe aqueous solution was washed with EtOAc (4×15 mL)
2. washThe combined organic solutions were washed with water (2×15 mL)
3. dry with materialdried (MgSO4)
4. filtrationfiltered
5. concentrationconcentrated
6. customThe residue was purified by medium pressure chromatography (1:1 hexanes:EtOAc)