反应详情

A solution of 3-[(4-bromo-phenyl)-methoxy-methylene]-8-pyrimidin-2-yl-8-aza-bicyclo[3.2.1]octane (2.44 g, 6.32 mmol), aqueous HCl (10.5 ml, 6N) and THF (50 ml) was stirred at room temperature overnight. The mixture was added by saturated aq. NaHCO3 until bubbling was gone. The mixture was diluted with ethyl acetate and the organic phase was dried over MgSO4 and concentrated. ISCO was used to do purification and (4-bromo-phenyl)-(8-pyrimidin-2-yl-8-aza-bicyclo[3.2.1]oct-3-yl)-methanone was obtained as white solid (2.16 g, 92%). MS (M+1)=374. 1H NMR (CDCl3) 8.33 (d, J=12 Hz 2H), 7.84 (d, J=13 Hz 2H), 7.62 (d, J=13 Hz 2H), 6.51 (t, J=12 Hz 1H), 4.87 (m, 2H), 3.90 (m, 1H), 2.23 (m, 2H), 2.08 (m, 2H), 1.97 (m, 2H), 1.72 (m, 2H).

1. customuntil bubbling
2. additionThe mixture was diluted with ethyl acetate
3. dry with materialthe organic phase was dried over MgSO4
4. concentrationconcentrated
5. custompurification