6'-N-tert-Butylsisomicin 63142-39-2 D-Streptamine, 2-amino-2,3,4,6-tetradeoxy-6-((1,1-dimethylethyl)amino)-alpha-D-glycero-hex-4-enopyranosyl-(1-4)-O-(3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl)-(1-6)-2-deoxy-, hemihydrate