(1R,2R,3S,4R,6S)-4,6-diamino-3-hydroxy-2-{[alpha-D-mannopyranosyl-(1->4)-2,6-diamino-2,6-dideoxy-beta-L-idopyranosyl-(1->3)-beta-D-ribofuranosyl]oxy}cyclohexyl 2-amino-2,3-dideoxy-alpha-D-ribo-hexopyranoside