(S)-2-Amino-4-{(R)-1-(carboxymethyl-carbamoyl)-2-[2-cyano-2-(phenyl-hydrazono)-acetimidoylsulfanyl]-ethylcarbamoyl}-butyric acid

丙二腈

(phenylimino)-2-phenylhydrazine

alpha-(2-(2,2-dicyanovinyl)-2-phenyl hydrazono)malononitrile