6'-N-Methylfortimicin B 6'-N-Mfb 71657-32-4 L-chiro-Inositol, 4-amino-3-O-(2-amino-2,3,4,6,7-pentadeoxy-6-(methylamino)-beta-L-lyxo-heptopyranosyl)-1,4-dideoxy-6-O-methyl-1-(methylamino)-