2-[acetyl(carboxymethyl)amino]acetic acid

2-methyl-4-[(5-methylthiophen-2-yl)methylidene]-1,3-oxazol-5-one

4-[(5-bromothiophen-2-yl)methylidene]-2-methyl-1,3-oxazol-5-one

2-methyl-4-(thiophen-3-ylmethylidene)-1,3-oxazol-5-one

N-(6-nitro-2-oxochromen-3-yl)acetamide