Mellemprodukter og fremgangsmåde til fremstilling af en fluorholdig aminosyreforbindelse ved anvendelse deraf

摘要

The present inventions relate to a (1S,5R,6S)- or (1SR,5RS,6SR)-3-fluoro-2-oxobicycloÄ3.1.0Ühex-3-ene-6-carboxylic acid derivative represented by Formula (1): Äin the formula, R represents OR<1> or NR<1>R<2>, wherein R<1> and R<2> are identical or different, and each represents a hydrogen atom, a C1-C6 alkyl group, a C3-C6 cycloalkyl group, a (C3-C6 cycloalkyl) (C1-C6 alkyl) group, an aryl group, an aryl (C1-C6 alkyl) group, a (C1-C6 alkoxy) (C1-C6 alkyl) group, a C1-C6 hydroxyalkyl group, a (C1-C6 alkylthio) (C1-C6 alkyl) group, or a C1-C6 mercaptoalkyl groupÜ, and a process for producing the same, and a process for efficiently producing a fluorine-containing amino acid compound acting on group 2 metabotropic glutamate receptors, which has treatment effects or prevention effects on psychiatric diseases or neurological diseases, characterized by hydrogenating the derivative, and subsequently, subjecting it to hydantoination or aminocyanidation, followed by hydrolysis.