2-咪唑烷酮

环戊基-N-琥珀酰亚胺基碳酸酯

(2,5-dioxopyrrolidin-1-yl) 2,3-dihydroindole-1-carboxylate

1-(羧基氧基)-2,5-吡咯烷二酮

6-溴-1H-咪唑并[4,5-B]吡啶-2(3H)-酮