(2S,3S,4S,5Z)-4-(2-carboxylatoethyl)-5-[2-[[5-[(3-ethenyl-2-hydroxy-4-methyl-5-oxo-1H-pyrrol-2-yl)methyl]-3-ethyl-4-(hydroxymethyl)-1H-pyrrol-2-yl]methyl]-3-methyl-4-oxo-1H-cyclopenta[b]pyrrol-6-ylidene]-3-methylpyrrolidine-2-carboxylate 在
chromium(VI) oxide 、
potassium hydrogensulfate 作用下,
以
水 为溶剂,
生成
2-Methyl-3-vinylmaleimide 、
3-甲基-4,6-二氧代-1,4,5,6-四氢环戊烯并[b]吡咯-2-甲醛