1,3-diacetyl-4,5-dimethylimidazolin-2(1H)-one

1,3-diacetyl-5-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid ethyl ester

Z-benzaldehyde O-benzyloxime

氯磷酸二乙酯

苄甲醚