149092-35-3 2-Cyano-3-(3,4-dihydroxyphenyl)-N-(4-phenylbutyl)-2-propenamide 2-Propenamide, 2-cyano-3-(3,4-dihydroxyphenyl)-N-(4-phenylbutyl)- AG 556 AG-556 N-(4-Phenylbutyl)-3,4-dihydroxybenzylidene cyanoacetamide Tyrphostin AG556 Tyrphostin B56 alpha-Cyano-(3,4-dihydroxy)-N-(4-phenylbutyl)cinnamide