4'-Deoxy-1-L(-)-gamma-amino-alpha-hydroxybutyryl-neamine 4'-Deoxy-1-ahb-neamine 54333-80-1 BRN 1407116 L-N(sup 1)-(4-Amino-2-hydroxybutyryl)-4'-deoxyneomycin A Neomycin A, N(sup 1)-(4-amino-2-hydroxybutyryl)-4'-deoxy-, (L)-