title: Structural studies on lipiarmycin. I. Characterization by 1H and 13C NMR spectroscopy and isolation of methyl 2-O-methyl-4-O-homodichloroorsellinate-beta-rhamnoside.
abstract: 1H and 13C NMR spectral studies of lipiarmycin in CDCl3 and in pyridine-d5 provided evidence for the six partial structures I approximately VI and the two sugar units 1 and 2. Acid methanolysis led to the isolation of methyl 2-O-methyl-4-O-homodichloroorsellinate-beta-rhamnoside, whose structure was determined by spectroscopic methods.
mesh_terms: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; D055598:Chemical Phenomena; D002621:Chemistry; D000077732:Fidaxomicin; D006027:Glycosides / Q000302:isolation & purification*; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D013055:Spectrophotometry, Infrared
chemical_list: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; D006027:Glycosides; C039869:methyl 2-O-methyl-4-O-homodichloroorsellinate-beta-rhamnoside; D000077732:Fidaxomicin