[EN] PROCESS FOR PREPARING SAXAGLIPTIN AND ITS NOVEL INTERMEDIATES USEFUL IN THE SYNTHESIS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE SAXAGLIPTINE ET DE SES NOUVEAUX INTERMÉDIAIRES UTILES DANS SA SYNTHÈSE
申请人:APICORE LLC
公开号:WO2012162507A1
公开(公告)日:2012-11-29
Methods of making saxagliptin, pharmaceutically acceptable salts and hydrates thereof and intermediates thereof.
PROCESS FOR PREPARING DIPEPTIDYL PEPTIDASE IV INHIBITORS AND INTERMEDIATES THEREFOR
申请人:AstraZeneca AB
公开号:EP3000893A2
公开(公告)日:2016-03-30
A process for preparing an amine of the structure
which comprises
a. treating an aqueous solution of a keto acid of the structure
with ammonium formate, nicotinamide adenine dinucleotide, dithiothreitol and partially purified phenylalanine dehydrogenase and/or formate dehydrogenase enzyme (PDH/FDH); and
b. adjusting pH of the reaction mixture with sodium hydroxide to form the desired amine which is substantially free of undesirable excess ammonium ions.
[EN] AMMONOLYSIS PROCESS FOR THE PREPARATION OF INTERMEDIATES FOR DPP IV INHIBITORS<br/>[FR] PROCEDE D'AMMONOLYSE DESTINE A LA PREPARATION D'INTERMEDIAIRES POUR DES INHIBITEURS IV DPP
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2006020664A2
公开(公告)日:2006-02-23
A process is provided for preparing the intermediate A in accordance with the following reaction sequence. The intermediate A is used in preparing DPP IV inhibitors which are useful in treating diabetes.
[EN] PROCESS FOR PRODUCING A DIPEPTIDYL PEPTIDASE IV INHIBITOR<br/>[FR] PROCEDE DE PRODUCTION D'UN INHIBITEUR DE LA DIPEPTIDYL PEPTIDASE IV
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2005115982A1
公开(公告)日:2005-12-08
A process is provided for preparing the dipeptidyl peptidase of the structure (I) (also referred to as saxaglipitin) by direct dehydration, in one pot, of the amide II (II) by reacting amide II with phosphorus oxychloride in an organic solvent such as dichloromethane, quenching the reaction mixture with water to form the hydrochloric acid salt of I, and treating the hydrochloric acid salt with base to form the free base of I.