sodium ethyl acetylacetate enolate
(2-nitrophenyl)acetyl chloride
ethyl acetoacetate
3-methyl-5-(2-nitro-benzyl)-isoxazole-4-carboxylic acid hydroxyamide
3-methyl-5-(2-nitro-benzyl)-isoxazole-4-carboxylic acid
4-(2-nitro-phenyl)-acetoacetic acid benzyl ester
4-(2-nitro-phenyl)-acetoacetic acid
indol-2-yl-acetic acid benzyl ester