title: Total synthesis of dysiherbaine.
abstract: A convergent total synthesis of the marine natural product dysiherbaine was accomplished. The key steps of the synthesis are an alkylation at the gamma-carbon of a protected glutamate with a highly substituted pyran derived from mannose, which was followed by a ring-contraction cascade reaction, which simultaneously gave the tetrasubstituted carbon and the hexahydrofuro[3,2-b]pyran ring system of the natural product.
authors: Department of Chemistry, University of California, Irvine 92697-2025, USA.
authors: Dean
authors: D
authors: Phillips
authors: A Richard
authors: AR
authors: Chamberlin
mesh_terms: D000409:Alanine / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D000478:Alkylation; D001685:Biological Factors / Q000138:chemical synthesis* / Q000737:chemistry; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D002625:Chemistry, Organic / Q000379:methods*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010084:Oxidation-Reduction
chemical_list: D001685:Biological Factors; D019086:Bridged Bicyclo Compounds, Heterocyclic; C121741:dysiherbaine; D000409:Alanine