3-methyl-5-phenyliminofuran-2-one

2-[(2-chloroacetyl)amino]prop-2-enoic acid

N-[(7-甲氧基-6-甲基-5,8-二氧代异喹啉-1-基)甲基]-2-氧代丙酰胺

3-甲基-2H-1,4-苯并恶嗪-2-酮

tert-butyl 2-oxopropanoate