2-(2-oxopyrrolidin-1-yl)ethanethioamide

[(Z)-[1-amino-2-(2-oxopyrrolidin-1-yl)ethylidene]amino] acetate

1-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]pyrrolidin-2-one

1-(2-氨基-乙基)-吡咯烷-2-酮

2-硫代-1-吡咯烷硫代乙酰胺