Synonyms: 1,2-Dithia-5,8,11,14,17-pentaazacycloeicosane,cyclic peptide deriv.; 5H,10H-Dipyrrolo[2,1-v:2',1'-h1][1,2,5,8,11,14,17,20,23,26,29,32,35]dithiaundecaazacyclooctatriacontine,cyclic peptide deriv.;71,15-(Iminoethaniminoethaniminoethaniminoethaniminoethaniminomethano)-75H-pyrrolo[1,2-h3][1,2,57,58,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,62,65,68,71,74,77,80,83,86,89,92,95,98,101]tetrathiahentriacontaazacyclotrihectine,cyclic peptide deriv.