1-(4-溴苯基)-5-氧代吡咯烷-3-羧酸

1-(3-bicyclo[2.2.1]heptanyl)-5-oxopyrrolidine-3-carboxylic acid

1-(3-羟基苯基)-5-氧代-3-吡咯烷羧酸

3-(chloromethyl)oxolane-2,5-dione

1-癸基-5-氧代吡咯烷-3-羧酸