for the following products
(S)-(-)-2-(N-Benzylprolyl)aminobenzophenone | (S)-2-N'-(N-Benzylprolyl)aminoenzophenone | (S)-N-(2-Benzoylphenyl)-1-benzyl-prolinamide | (S)-N-(2-Benzoylphenyl)-1-benzylpyrrolidine-2-carboxamide and (S)-2-N'-(N-Benzylprolyl)aminoâbenzophenone
