trans-N-β-triacetoneaminoacrylonitrile

2-cyanoethynyl(cyclohexyl)mercury

3-tributylstannylprop-2-ynenitrile

diethyl 5-[3-cyano-4-[4-(dimethylamino)phenyl]-2-oxobut-3-enyl]-3-methylthiophene-2,4-dicarboxylate

3-bromo-4-(2-bromo-4-carboxy-6-nitrophenyl)-5-nitrobenzoic acid