1,1'-methylenebis(pyrrolid-2-one)

3-diazonio-4-oxo-4-(2-oxopyrrolidin-1-yl)but-2-en-2-olate

N-甲苯磺酰基吡咯烷酮

N,N-dimethyl-3,4-dihydro-2H-pyrrol-5-amine

(羟基甲基)-2-吡咯烷酮