title: Absolute stereochemistry of acremolactone A, a novel herbicidal epoxydihydropyranyl gamma-lactone from Acremonium roseum I4267.
abstract: Acremolactone A was chemically degraded to the bicyclic hemiacetal gamma-lactone and an epoxycyclohexenol, and their stereochemistry was determined by spectroscopic methods. These observations and data from NOE experiments on acremolactone A led to the configurational assignment of all asymmetric carbons in acremolactone A, enabling its stereostructure to be established.
authors.affiliation: Department of Bioresource Engineering, Faculty of Agriculture, Yamagata University, Tsuruoka 997-8555, Japan. tsassa@tds1.tr.yamagata-u.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sassa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ooi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kinoshita
authors.forename: Katsuhide
authors.initials: K
authors.lastname: Okada
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry*; D000164:Acremonium / Q000737:chemistry*; D001578:Benzopyrans / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation
chemical_list: D001578:Benzopyrans; D006540:Herbicides; D007783:Lactones; C116837:acremolactone A; D015107:4-Butyrolactone