2-Deoxyfortimycin B 5-Deoxyfortimycin B 71657-28-8 L-chiro-Inositol, 4-amino-1,4,5-trideoxy-3-O-(2,6-diamino-2,3,4,6,7-pentadeoxy-beta-L-lyxo-heptopyranosyl)-6-O-methyl-1-(methylamino)-