反应详情

A solution of N-{4-[4-(diethylcarbamoyl-phenyl-methyl)-piperazin-1-yl]-3-fluoro-phenyl}-2-ethyl-butyramide (48 mg, 0.10 mmol) in DMF (2 mL) was treated with NaH (60% in mineral oil; 5 mg, 0.12 mmol). After 10 min, MeI (7 μL, 0.12 mmol) was added. After 3 h, the mixture was diluted with water and extracted with DCM. The organic layer was concentrated to give an oil, which was purified by PTLC to give an off white solid (25 mg, 50%). MS (ESI): mass calcd. for C29H41FN4O2, 496.96. m/z found, 497.5 [M+H]+. 1H NMR (CDCl3): 7.49-7.46 (m, 2H), 7.40-7.32 (m, 3H), 6.93-6.89 (m, 1H), 6.87-6.81 (m, 2H), 4.37 (s, 1H), 3.51-3.47 (m, 1H), 3.45-3.40 (m, 1H), 3.33-3.25 (m, 1H), 3.24 (s, 3H), 3.19-3.16 (m, 5H), 2.75-2.70 (m, 4H), 2.23-2.19 (m, 1H), 1.63-1.56 (m, 2H), 1.41-1.33 (m, 2H), 1.12-1.05 (m, 6H), 0.81 (t, J=7.4, 6H).

1. waitAfter 3 h
2. extractionextracted with DCM
3. concentrationThe organic layer was concentrated
4. customto give an oil, which
5. customwas purified by PTLC