α-Bungarotoxin

86,18-(Iminoethaniminoethaniminoethaniminoethaniminomethano[2,1]-endo-pyrrolomethano[2,1]-endo-pyrrolomethano)-56,68-(methanodithiomethano)-1H,90H-pyrrolo[1,2-n3][1,2,69,70,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59,62,65,74,77,80,83,86,89,92,95,98,101,104,107,110]tetrathiatetratriacontaazacyclododecahectine, cyclic peptide deriv.

α-Bungotoxin

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.