title: Chelation-controlled reduction: stereoselective formation of syn-1,3-diols and synthesis of compactin and mevinolin lactone.
abstract: Chelation-controlled reduction of chiral beta-alkoxy ketones containing a competing beta'-oxygen functionality has been investigated. Various syn-1,3-diols were prepared conveniently by reduction of beta-alkoxy ketones with LiI/LiAlH(4) (syn:anti selectivity up to >99:1). The corresponding beta-alkoxy ketones were derived from nitro-aldol reactions of chiral alkoxy aldehydes with a series of nitro compounds. This methodology is utilized in a short and efficient synthesis of the delta-lactone moiety of the HMG-CoA reductase inhibitors compactin and mevinolin.
authors.affiliation: Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, 60607, USA.
authors.forename: Arun K
authors.initials: AK
authors.lastname: Ghosh
authors.forename: Hui
authors.initials: H
authors.lastname: Lei
mesh_terms: D000438:Alcohols / Q000138:chemical synthesis*; D002384:Catalysis; D002614:Chelating Agents / Q000737:chemistry; D002625:Chemistry, Organic / Q000379:methods*; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000138:chemical synthesis*; D007202:Indicators and Reagents; D007783:Lactones / Q000138:chemical synthesis*; D008094:Lithium; D008148:Lovastatin / Q000031:analogs & derivatives* / Q000138:chemical synthesis*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D013237:Stereoisomerism
chemical_list: D000438:Alcohols; D002614:Chelating Agents; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D007202:Indicators and Reagents; D007783:Lactones; C012258:mevastatin; D008094:Lithium; D008148:Lovastatin