1-benzyl-3-(S)-(1-(R)-tert-butoxycarbonylaminoethyl)pyrrolidine

4-acetyl-1-benzyl-2-pyrrolidinone

1-benzyl-4-(1-hydroxyiminoethyl)-2-pyrrolidone

(R)-1-((S)-1-Benzyl-pyrrolidin-3-yl)-ethylamine

4-(S)-(1-(R)-aminoethyl)-1-benzyl-2-pyrrolidone