Oxyapramycin

Nebramycin vii

Nebramycin factor 7

3'-alpha-Hydroxyapramycin

D-Streptamine, o-4-amino-4-deoxy-alpha-D-glucopyranosyl-(1-8)-o-(8R)-2-amino-2,7-dideoxy-7-(methylamino)-D-erythro-alpha-D-gluco-octodialdo-1,5:8,4-dipyranosyl-(1-4)-2-deoxy-