Related substance A


(2Z)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethylprop-2-enamide

Related substance B


(2E)-2-Cyano-3-(3,4-dihydroxyphenyl)-N,N-diethylprop-2-enamide

Related substance C


(2E)-3-(3-Bromo-4,5-dihydroxyphenyl)-2-cyano-N,N-diethylprop-2-enamide