1-N-(3-Aminopropoxycarbonyl)kanamycin A 77987-52-1 Apc kanamycin A D-Streptamine, O-3-amino-3-deoxy-alpha-D-glucopyranosyl-(1-6)-O-(6-amino-6-deoxy-alpha-D-glucopyranosyl-(1-4))-N1-((3-aminopropoxy)carbonyl)-2-deoxy-