51846-97-0 Antibiotic JI 20A BRN 1668513 D-Streptamine, O-3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranosyl-(1-6)-O-(2,6-diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4))-2-deoxy- JI-20 A