title: Elucidation of structure of novel macrolide antibiotics produced by mutant strains of Streptomyces fradiae.
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D007933:Leucomycins / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D009154:Mutation; D013302:Streptomyces / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D007933:Leucomycins