[EN] A PROCESS FOR THE PREPARATION OF AN INTERMEDIATE FOR A TRIAZOLOPYRIMIDINE CARBONUCLEOSIDE<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'UN INTERMÉDIAIRE POUR UN CARBONUCLÉOSIDE DE TRIAZOLOPYRIMIDINE
申请人:ENANTIA S L
公开号:WO2014023681A1
公开(公告)日:2014-02-13
A process for the preparation of 4,6-dihalopyrimidin-5-aminesof formula (II), or salts thereof, which comprises reacting 5-aminopyrimidin-4,6-diols of formula (III), or salts thereof, or a solvate either of the compound of formula (III) or of a salt thereof, with a halogenating agent, new intermediates useful in the preparation of the compound of formula (II) and processes for the preparation of these intermediates. The invention also refers to a process for the preparation of ticagrelor or a pharmaceutically acceptable saltthereoffrom 4,6-dihalo-2- (propylthio)pyrimidin-5-amine of formula (IIA).
一种制备4,6-二卤代嘧啶-5-胺(II式)或其盐的方法,包括将III式的5-氨基嘧啶-4,6-二醇或其盐,或者III式化合物或其盐的溶剂与卤代试剂反应,制备II式化合物的新中间体以及制备这些中间体的方法。本发明还涉及一种从IIA式的4,6-二卤代-2-(丙硫基)嘧啶-5-胺制备替卡格雷洛或其药学上可接受的盐的方法。