1-氧杂-3-氮杂螺[4.4]壬烷-2,4-二酮

4-prop-2-enylazetidin-2-one

5-(2,2,2-trichloroacetyl)-1H-pyrrole-3-carbonitrile

2-acetylpyrrole-4-carbonitrile

butyl sulfamate