37321-09-8 AIDS-166733 AIDS166733 Apramycin D-Streptamine, O-4-amino-4-deoxy-alpha-D-glucopyranosyl-(1-8)-O-(8R)-2-amino-2,3,7-trideoxy-7-(methylamino)-D-glycero-alpha-D-allo-octadialdo-1,5:8,4-dipyranosyl-(1-4)-2-deoxy-