4''-alpha-D-Glucopyranosylkanamycin B 84123-75-1 D-Streptamine, O-2,6-diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4)-O-(O-alpha-D-glucopyranosyl-(1-4)-3-amino-3-deoxy-alpha-D-glucopyranosyl-(1-6)-2-deoxy-