methyl 2-allyl-2-nitro-4-pentenoate

methyl 4-cyano-2-nitrobutanoate

methyl 3-(1,3-benzodioxol-5-yl)-2-nitroprop-2-enoate

methyl (Z)-3-(1,3-benzodioxol-5-yl)-2-nitroacrylate

methyl 4,9-dioxo-4,9-dihydronaphtho[2,3-d]isoxazole-3-carboxylate