title: A symmetry-based formal synthesis of zaragozic acid A.
abstract: A symmetry-based strategy for the synthesis of the zaragozic acids is reported. Two enantioselective dihydroxylations were used to establish the absolute configuration of a C(2) symmetric intermediate. Noteworthy transformations include a group-selective lactonization, which accomplished an end-differentiation of a pseudo-C(2) symmetric intermediate. Late stage protecting group adjustments and oxidations accomplished a formal synthesis of zaragozic acid A.
authors.affiliation: Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, USA.
authors.forename: K D
authors.initials: KD
authors.lastname: Freeman-Cook
authors.forename: R L
authors.initials: RL
authors.lastname: Halcomb
mesh_terms: D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000138:chemical synthesis*; D018360:Crystallography, X-Ray; D004791:Enzyme Inhibitors / Q000138:chemical synthesis*; D013186:Farnesyl-Diphosphate Farnesyltransferase / Q000037:antagonists & inhibitors*; D005658:Fungi / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D014233:Tricarboxylic Acids / Q000138:chemical synthesis*
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D004791:Enzyme Inhibitors; D014233:Tricarboxylic Acids; C075117:squalestatin 1; D013186:Farnesyl-Diphosphate Farnesyltransferase