2,5-dioxopyrrolidin-1-yl 3,4,5-tris((ethoxycarbonyl)oxy)benzoate

methyl 6-bromo-7-hydroxy-2,2-diphenylbenzo[d][1,3]dioxole-5-carboxylate

methyl 7-methoxy-6-nitro-1,3-benzodioxole-5-carboxylate