反应详情

Analogous to the procedure described for Compound 1A, Step B, 5-[3-oxo-4-(3-trifluoromethyl-phenyl)-butyl]-pyrrolidin-2-one (1.37 g, 4.59 mmol) was reduced with NaBH4 (174 mg) at 0° C. over 2 h. Purification by medium pressure chromatography (2% MeOH in CH2Cl2) provided 5-[3-hydroxy-4-(3-trifluoromethyl-phenyl)-butyl]-pyrrolidin-2-one (1.19 g). 1H NMR (CDCl3) δ 7.42 (m, 4H), 6.26 (m, 1H), 3.82 (m, 1H), 3.65 (m, 1H), 2.84 (m, 1H), 2.72 (m, 1H), 2.27 (m, 3H), 1.86 (m, 1H), 1.75-1.42 (m, 5H); MS 302.2 (M+1).

1. customPurification by medium pressure chromatography (2% MeOH in CH2Cl2)