4'-Trifluoromethyl-biphenyl-4-carboxylic acid ((S)-1-benzyl-pyrrolidin-3-yl)-methyl-amide

((R)-1-{(S)-3-[Methyl-(4'-trifluoromethyl-biphenyl-4-carbonyl)-amino]-pyrrolidine-1-carbonyl}-pyrrolidin-3-yl)-carbamic acid tert-butyl ester