title: Isolation and characterization of antibiotic X-14931A, the naturally occurring 19-deoxyaglycone of dianemycin.
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D055598:Chemical Phenomena; D002621:Chemistry; D008826:Microbial Sensitivity Tests; D011714:Pyrans / Q000302:isolation & purification / Q000494:pharmacology; D013237:Stereoisomerism
chemical_list: D000900:Anti-Bacterial Agents; D011714:Pyrans; C042548:antibiotic X 14931A