ethyl (Z)-2-nitro-3-(thiophen-2-yl)acrylate

4-hydroxy-3-nitro-1-prop-2-enylquinolin-2-one

4-hydroxy-1-methyl-3-nitro-1,8-naphthyridin-2-one

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

formonitrile oxide