title: Butyl-meta-cycloheptylprodiginine--a revision of the structure of the former ortho-isomer.
abstract: A red pigment produced by the actinomycete strain B 4358 was identified as butyl-meta-cycloheptylprodiginine (4) by 1H, 13C and correlation via long range coupling NMR spectra. It shows striking spectroscopic similarities to butyl-ortho-cycloheptylprodiginine (1), the structure of which needs to be revised.
authors.affiliation: Department of Organic Chemistry, University of Göttingen, W. Germany.
authors.forename: H
authors.initials: H
authors.lastname: Laatsch
authors.forename: M
authors.initials: M
authors.lastname: Kellner
authors.forename: H
authors.initials: H
authors.lastname: Weyland
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010860:Pigments, Biological / Q000737:chemistry*; D011353:Prodigiosin / Q000031:analogs & derivatives* / Q000737:chemistry; D013055:Spectrophotometry, Infrared
chemical_list: D010860:Pigments, Biological; C068092:butyl-meta-cycloheptylprodiginine; D011353:Prodigiosin