A METHOD OF MANUFACTURING 5-[2-CYCLOPROPYL-1-(2-FLUOROPHENYL)-2-OXOETHYL]-4,5,6,7- TETRAHYDROTHIENO[3,2-C]PYRIDIN-2-YL ACETATE (PRASUGREL)
申请人:Zentiva, k.s.
公开号:EP2176269B1
公开(公告)日:2011-03-09
METHOD FOR THE MANUFACTURE OF HIGHLY PURE PRASUGREL
申请人:Stepankova Hana
公开号:US20110282064A1
公开(公告)日:2011-11-17
The invention deals with preparation of the substance prasugrel, using 3-cyclopropyl-1-(2-fluorophenyl)-3-oxopropyl methanesulfonate for alkylation of 2-oxo-thienotetrahydropyridine, which may be in the form of a salt, e.g. with hydrochloric acid or p-toluenesulfonic acid. The resulting compound of formula II is acylated, preferably with acetanhydride, preferably directly in the reaction mixture without isolation, and the produced prasugrel of formula I can then be crystallized directly from the reaction mixture.
[EN] A METHOD OF MANUFACTURING 5-[2-CYCLOPROPYL-1-(2-FLUOROPHENYL)-2-OXOETHYL]-4,5,6,7- TETRAHYDROTHIENO[3,2-C]PYRIDIN-2-YL ACETATE (PRASUGREL)<br/>[FR] PROCÉDÉ DE FABRICATION D'ACÉTATE DE 5-[2-CYCLOPROPYL-1-(2-FLUOROPHÉNYL)-2-OXOÉTHYL]-4,5,6,7-TÉTRAHYDROTHIÉNO[3,2-C]PYRIDIN-2-YLE (PRASUGREL)
申请人:ZENTIVA AS
公开号:WO2009006859A2
公开(公告)日:2009-01-15
A method of manufacturing 5-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-4,5,6,7- tetrahydrothieno[3,2-c]pyridin-2-yl acetate, known under the INN name prasugrel of formula (I), in which the substance of formula (VI) is reacted with a cyclopropyl magnesium halide to produce the substance of formula (V), which reacted with methanesulfonyl chloride to give the methanesulfonate of formula (IV), which is further reacted with the compound of formula (III) to be converted the substance of formula (II) and the latter is converted to the substance of formula (I) with an acetylation agent.