| Synonyms: | echinomycina;nsc526417;ECHINOMYCIN;N-[(1R,4S,8R,11S,14R,17S,21R,24S)-3,11,13,16,24,26-hexamethyl-27-methylsulfanyl-2,5,9,12,15,18,22,25-octaoxo-4,17-di(propan-2-yl)-8-(quinoxaline-2-carbonylamino)-6,19-dioxa-28-thia-3,10,13,16,23,26-hexazabicyclo[12.12.3]nonacosan-21-yl]quinoxaline-2-carbo;N-(2-Quinoxalinylcarbonyl)cyclo(D-Ser*-Ala-N-methyl-L-Cys(1)-N-methyl-L-Val-N-(quinoxaline-2-ylcarbonyl)-D-Ser*-Ala-N-methyl-3-methylthio-L-Ala(1)-N-methyl-L-Val-);SK-302B;Echinomycin >97%;N-(2-Quinoxalinylcarbonyl)-O-[N-(2-quinoxalinylcarbonyl)-D-seryl-L-alanyl-3-mercapto-N,S-dimethylcysteinyl-N-methyl-L-valyl]-D-seryl-L-alanyl-N-methylcysteinyl-N-methyl L-valine (81)-lactone cyclic (37)-thioester |