Process for the preparation of amino methyl cyclo alkane acetic acids
申请人:Kuppuswamy Nagarajan
公开号:US20060149099A1
公开(公告)日:2006-07-06
This invention relates to an improved process for the preparation of amino methyl cyclo alkane acetic acids. This invention particularly relates to an improved process for the preparation of gabapentin (which is chemically known as 1-aminomethyl-1-cyclohexaneacetic acid), which is a very well known agent useful for the treatment of epilepsy and other cerebral disorders. In the chemical series of 1-amino methyl cyclo alkane-1-acetic acids, Gabapentin, which is 1-amino methyl cyclo hexane-1-acetic acid has been developed as a drug having anti convulsive properties.
[EN] PROCESS FOR PREPARING A CYCLIC AMINO ACID ANTICONVULSANT COMPOUND<br/>[FR] PROCEDE DE PREPARATION D'UN COMPOSE ANTICONVULSIF, AMINOACIDE ET CYCLIQUE
申请人:——
公开号:WO1999018063A2
公开(公告)日:1999-04-15
[EN] An improved process for the preparation of a cyclic amino acid by a novel synthesis is described where benzonitrile is treated with an alkali metal and an amine under Birch reduction conditions to generate in situ an anionic intermediate which is alkylated with an alpha -haloacetic acid moiety which is subsequently converted to the desired product, as well as valuable intermediates used in the process. [FR] L'invention concerne un procédé perfectionné de préparation d'un aminoacide cyclique par un procédé de synthèse nouveau, dans lequel on traite du benzonitrile à l'aide d'un métal alcalin et d'une amine dans des conditions de réduction de Birch, pour générer in-situ un intermédiaire anionique qui est alkylé à l'aide d'une fraction acide alpha -haloacétique et qui est ensuite converti en produit voulu, ainsi que les intermédiaires de valeur utilisés au cours de la mise en oeuvre du procédé.