[F:1][C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][C@@H:10]2[CH2:14][CH2:13][CH2:12][N:11]2[C:15](=O)[CH3:16])[CH:5]=[CH:6][CH:7]=1.[H-].[Al+3].[Li+].[H-].[H-].[H-].[OH-].[Na+].S(=O)(=O)(O)[O-].[Na+]>C1COCC1.O>[CH2:15]([N:11]1[CH2:12][CH2:13][CH2:14][C@H:10]1[CH2:9][CH2:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([F:1])[CH:3]=1)[CH3:16]
A solution of 1-{(R)-2-[2-(3-fluorophenyl)ethyl]pyrrolidin-1-yl}ethanone (Intermediate 232, 0.48 g) in THF (20 mL) was cooled to 0° C. and treated with a solution of lithium aluminum hydride (2M in THF, 3.6 mL) under an atmosphere of nitrogen. The resultant mixture was allowed to warm to room temperature before heating to 60° C. overnight. The mixture was cooled to 0° C. and treated with water (0.35 ml), 4N sodium hydroxide solution (0.35 ml) and further water (0.9 ml). Sodium bisulphate powder was added to the suspension and the slurry was filtered through Celite and the filtrate was evaporated to dryness to give (R)-1-ethyl-2-[2-(3-fluoro-phenyl)ethyl]pyrrolidine (0.41 g) as an oil.
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