Synonyms: 5H,24H-Tetrapyrrolo[1,2-a:1',2'-d:1'',2''-p:1''',2'''-s][1,4,7,10,13,16,19,22,25,28]decaazacyclotriacontine,cyclic peptide deriv.; Antamanid;Cyclo(L-alanyl-L-phenylalanyl-L-phenylalanyl-L-prolyl-L-prolyl-L-phenylalanyl-L-phenylalanyl-L-valyl-L-prolyl-L-prolyl);Cyclo(L-valyl-L-prolyl-L-prolyl-L-alanyl-L-phenylalanyl-L-phenylalanyl-L-prolyl-L-prolyl-L-phenylalanyl-L-phenylalanyl);NSC 263652