2-乙酰基-1-吡咯啉

1,2-丙二醇

4-hydroxy-2,5-dimethyl-1H-pyrrole-3-carbonitrile

5-Hydroxy-2,5-dimethyl-4-oxo-4,5-dihydro-1H-pyrrole-3-carbonitrile

5-甲基-3-(甲基硫代)-1,2,4-三嗪