(S)-O-2,6-Diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4)-O-(3,4,6-trideoxy-3-(methylamino)-alpha-D-xylo-hexopyranosyl-(1-6))-N(1)-(4-amino-2-hydroxy-1-oxobutyl)-2-deoxy-D-streptamine 62622-76-8 RU 25434 RU-25434