[EN] EFFICIENT PROCESS FOR THE PREPARATION OF SITAGLIPTIN THROUGH A VERY EFFECTIVE PREPARATION OF THE INTERMEDIATE 2,4,5-TRIFLUOROPHENYLACETIC ACID<br/>[FR] PROCÉDÉ EFFICACE POUR LA PRÉPARATION DE SITAGLIPTINE PAR UNE PRÉPARATION TRÈS EFFICACE DE L'ACIDE 2,4,5-TRIFLUOROPHÉNYLACÉTIQUE INTERMÉDIAIRE
申请人:FIS FABBRICA ITALIANA SINTETICI SPA
公开号:WO2019007578A1
公开(公告)日:2019-01-10
Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.
EFFICIENT PROCESS FOR THE PREPARATION OF SITAGLIPTIN THROUGH A VERY EFFECTIVE PREPARATION OF THE INTERMEDIATE 2,4,5-TRIFLUOROPHENYLACETIC ACID
申请人:F.I.S.- Fabbrica Italiana Sintetici S.p.A.
公开号:EP3424927A1
公开(公告)日:2019-01-09
Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.
Efficient process for the preparation of sitagliptin through a very effective preparation of the intermediate 2,4,5-trifluorophenylacetic acid
申请人:F.I.S. - FABBRICA ITALIANA SINTETICI S.P.A.
公开号:US10913747B2
公开(公告)日:2021-02-09
Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.
[EN] PROCESS FOR THE PREPARATION OF FLUOROPHENYLACETIC ACIDS AND DERIVATIVES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ACIDES FLUOROPHÉNYLACÉTIQUES ET DE DÉRIVÉS DE CEUX-CI
申请人:ITALIANA SINT SPA
公开号:WO2008078350A2
公开(公告)日:2008-07-03
[EN] The object of the present invention is a process for the preparation of fluorophenylacetic acids and derivatives thereof, particularly of 2,4, 5-trifluorophenylacetic acid, starting from the corresponding mandelic acids. [FR] La présente invention concerne un procédé de préparation d'acides fluorophénylacétiques et de dérivés de ceux-ci, en particulier de l'acide 2,4, 5-trifluorophénylacétique, à partir des acides mandéliques correspondants.