反应详情

Analogous to the procedure described for Example 1A, Step C, 5-[4-(4-fluoro-phenyl)-3-hydroxy-butyl]-pyrrolidin-2-one (1.95 g, 7.79 mmol) was reacted with tert-butyldimethylsilyl chloride (1.47 g, 9.76 mmol). Purification by medium pressure chromatography (1% MeOH in CH2Cl2) provided 5-[3-(tert-butyl-dimethyl-silanyloxy)-4-(4-fluoro-phenyl)-butyl]-pyrrolidin-2-one. 1H NMR (CDCl3) δ7.12 (m, 2H), 6.97 (m, 2H), 5.75 (m, 1H), 3.83 (m, 1H), 3.60 (m, 1H), 2.71 (m, 2H), 2.36–2.24 (m, 3H), 1.70–1.38 (m, 5H), 0.84 (s, 9H), −0.05 (d, 3H), −0.2 (d, 3H).

1. customPurification by medium pressure chromatography (1% MeOH in CH2Cl2)