5-(2-噻吩基)-3,4-二氢-2H-吡咯

(S)-4-benzyl-3-(2-(2-oxopyrrolidin-1-yl)acetyl)oxazolidin-5-one

4-isobutyl-3-<(2-oxo-2-pyrrolidinyl)acetyl>-5-oxazolidinone

(S)-4-Isopropyl-3-[2-(2-oxo-pyrrolidin-1-yl)-acetyl]-oxazolidin-5-one

(S)-1-[2-(2-Oxo-pyrrolidin-1-yl)-acetyl]-pyrrolidine-2-carboxylic acid ethyl ester