title: New polyenic antibiotics active against gram-positive and gram-negative bacteria. IV. Structural elucidation of enacyloxin IIa.
abstract: The chemical structure of a unique polyenic antibiotic enacyloxin IIa (former name: fr. 2) produced by Frateuria (formerly Gluconobacter) sp. W-315 has been determined by extensive spectroscopic studies, in particular by NMR spectral analysis. It has a novel non-lactonic structure involving 3,4-dihydroxycyclohexanecarboxylic acid with a chlorine-containing polyenic and polyhydroxy acyl side chain attached as an ester to the 3-hydroxyl substituent of the acid.
authors.affiliation: Department of Agricultural Chemistry, Faculty of Agriculture, Tohoku University, Sendai, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Watanabe
authors.forename: T
authors.initials: T
authors.lastname: Sugiyama
authors.forename: M
authors.initials: M
authors.lastname: Takahashi
authors.forename: J
authors.initials: J
authors.lastname: Shima
authors.forename: K
authors.initials: K
authors.lastname: Yamashita
authors.forename: K
authors.initials: K
authors.lastname: Izaki
authors.forename: K
authors.initials: K
authors.lastname: Furihata
authors.forename: H
authors.initials: H
authors.lastname: Seto
mesh_terms: D016947:Acetobacteraceae / Q000737:chemistry; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006094:Gram-Positive Bacteria / Q000187:drug effects*; D009682:Magnetic Resonance Spectroscopy; D011090:Polyenes / Q000737:chemistry / Q000494:pharmacology; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000900:Anti-Bacterial Agents; D011090:Polyenes; C072734:enacyloxin IIa