To a solution of non-racemic 1-(S)-(1-(R)-(3,5-bis(trifluoro-methyl)phenyl)ethoxy)-2-(S)-(4-fluorophenyl)-3-(R)-(amino)cyclopentane from Example 39 in 0.5 mL of acetonitrile was added 50 mg of (2-pyrrolidon-5-(S)-yl)methylbromide and 0.10 mL of DIPEA. The reaction was heated in a sealed vial at 90° C. for 60 h and then evaporated. The residue was purified on a 2×1 mm preparative silica gel plates eluted with 2% TEA in methanol to afford 50 mg of title compound as a white solid. Mass spec (NH3 /CI): 533 (M+1).
