title: Pironetin, a novel plant growth regulator produced by Streptomyces sp. NK10958. II. Structural elucidation.
abstract: A novel plant growth regulator, pironetin was isolated from the culture broth of Streptomyces sp. NK10958. The structure of pironetin was determined to be (5R,6R)-5-ethyl- 5,6-dihydro-6-[(E)-(2R,3S,4R,5S)-2-hydroxy-4-methoxy-3,5-dimethyl-7- nonenyl]-2H-pyran-2-one by FAB-MS, 1H and 13C NMR, COSY, COLOC, DEPT, IR, X-ray crystallographic analyses and adapted Mosher's method.
authors.affiliation: Applied Microbiology Research Center, Nippon Kayaku Co. Ltd., Saitama, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: K
authors.initials: K
authors.lastname: Tsuchiya
authors.forename: T
authors.initials: T
authors.lastname: Kurokawa
authors.forename: T
authors.initials: T
authors.lastname: Nakagawa
authors.forename: N
authors.initials: N
authors.lastname: Shimada
authors.forename: Y
authors.initials: Y
authors.lastname: Iitaka
mesh_terms: D018360:Crystallography, X-Ray; D004952:Esters; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010937:Plant Growth Regulators / Q000096:biosynthesis / Q000737:chemistry*; D011753:Pyrones / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013302:Streptomyces / Q000378:metabolism
chemical_list: D004952:Esters; D010937:Plant Growth Regulators; D011753:Pyrones; C088446:pironetin