(1R,2R,3S,4R,6S)-4,6-diamino-3-[(2,3-diamino-2,3-dideoxy-4-O-methyl-alpha-D-lyxopyranosyl)oxy]-2-hydroxycyclohexyl 2,6-diamino-2,4,6-trideoxy-alpha-D-xylo-hexopyranoside