Synonyms: Microviridin;26,9-(Butaniminobutaniminomethano)-15,3-(iminomethano)pyrrolo[2,1-f][1,20,4,7,10,13,16,25,28]dioxaheptaazacyclodotriacontine,cyclic peptide deriv.; L-Tyrosine,N-acetyl-L-tyrosylglycylglycyl-L-threonyl-L-phenylalanyl-L-lysyl-L-tyrosyl-L-prolyl-L-seryl-L-a-aspartyl-L-tryptophyl-L-a-glutamyl-L-a-glutamyl-, cyclic (13®6)-peptide, (10®4),(12®9)-dilactone;N-Acetyl-L-tyrosylglycylglycyl-L-threonyl-L-phenylalanyl-L-lysyl-L-tyrosyl-L-prolyl-L-seryl-L-a-aspartyl-L-tryptophyl-L-a-glutamyl-L-a-glutamyl-L-tyrosine cyclic (13®6)-peptide (10®4),(12®9)-dilactone