[EN] PROCESS FOR THE PREPARATION OF A CHIRAL BETA AMINOACID DERIVATIVE AND INTERMEDIATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN DÉRIVÉ BÉTA AMINOACIDE CHIRAL ET INTERMÉDIAIRES UTILISÉS DANS LEDIT PROCÉDÉ
申请人:ESTEVE QUIMICA SA
公开号:WO2010097420A1
公开(公告)日:2010-09-02
It comprises a process for the preparation of sitagliptin, or its pharmaceutically acceptable salts, or its solvates, including hydrates, comprising: a) coupling an halo-2,4,5-trifluorobenzene with a compound of formula (IV) to give N-protected sitagliptin; the coupling being carried out via the formation of an organocupric compound of the halo-2,4,5-trifluorobenzene or, alternatively, via the formation of a organozinc compound of a compound of formula (IV); where R1 is hydrogen or an amino protective group; R2 is an amino protective group; or alternatively R1 and R2 taken together form a phtalimido group; X is Br or I; and Y is Br, I or R3SO3- wherein R3 is (C1-C4)- alkyl, phenyl, or phenyl mono- or disubstituted by a (C1-C4)-alkyl radical; b) submitting the N-protected sitagliptin to a deprotection reaction; and c) optionally its conversion into a pharmaceutically acceptable salt. It also comprises new intermediate compounds useful in such preparation process.
它包括一种用于制备西他列汀或其药用可接受盐或其溶剂化物,包括水合物的过程,包括:a)将卤代-2,4,5-三氟苯基与式(IV)的化合物偶联以得到N-保护的西他列汀;通过形成卤代-2,4,5-三氟苯基的有机铜化合物或者通过形成式(IV)的化合物的有机锌化合物进行偶联;其中R1为氢或氨基保护基;R2为氨基保护基;或者R1和R2一起形成邻苯二甲酰亚胺基团;X为Br或I;Y为Br、I或R3SO3-,其中R3为(C1-C4)-烷基、苯基或苯基单取代或双取代于(C1-C4)-烷基基团;b)将N-保护的西他列汀提交去保护反应;c)可选择地将其转化为药用可接受盐。它还包括在此制备过程中有用的新中间化合物。