title: MM 47761 and MM 49721, glycopeptide antibiotics produced by a new strain of Amycolatopsis orientalis. Isolation, purification and structure determination.
abstract: Two glycopeptide antibiotics MM 47761 and MM 47921 have been isolated from Amycolatopsis orientalis NCIB 12608. Fermentation conditions for their production, and methods for their isolation are described. The metabolites have been characterised by physio-chemical and biological properties and the structure determined by a combination of chemical degradation, COSY and NOE NMR studies. Both metabolites showed good antibacterial activity against Gram-positive organisms.
authors.affiliation: Beecham Pharmaceuticals, Chemotherapeutic Research Centre, Betchworth, Surrey, UK.
authors.forename: S J
authors.initials: SJ
authors.lastname: Box
authors.forename: A L
authors.initials: AL
authors.lastname: Elson
authors.forename: M L
authors.initials: ML
authors.lastname: Gilpin
authors.forename: D J
authors.initials: DJ
authors.lastname: Winstanley
mesh_terms: D000192:Actinomycetales / Q000378:metabolism*; D000617:Aminoglycosides; D000900:Anti-Bacterial Agents / Q000096:biosynthesis* / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D002851:Chromatography, High Pressure Liquid; D002852:Chromatography, Ion Exchange; D005285:Fermentation; D006094:Gram-Positive Bacteria / Q000187:drug effects; D005779:Immunodiffusion; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; C066087:MM 47761; C066086:MM 49721