preferred_name: (1R,2R,3S,4R,6S)-4,6-diamino-2-{[2-O-{2-[(3-aminopropyl)amino]ethyl}-3-O-(2,6-diamino-2,6-dideoxy-beta-L-idopyranosyl)-beta-D-ribofuranosyl]oxy}-3-hydroxycyclohexyl 2-amino-2-deoxy-alpha-D-glucopyranoside