[EN] A PROCESS FOR THE PREPARATION OF RIVAROXABAN BASED ON THE USE OF (S)-EPICHLOROHYDRIN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE RIVAROXABAN FONDÉ SUR L'UTILISATION DE (S)-ÉPICHLOROHYDRINE
申请人:ZENTIVA KS
公开号:WO2013120465A1
公开(公告)日:2013-08-22
The invention relates to the stereoisomers of 4-4-[(S/R)-5-[(((aryl)methylene)- amino)methyl]-2-oxo-1,3-oxazolidin-3-yl]phenyl}morpholin-3-ones described by the chemical formulae (S)-(9) and (R)-(9). The optical isomer of compound (9) with the (S)- configuration is industrially applicable for the manufacture of the antithrombotic drug rivaroxaban (1). The new preparation process of rivaroxaban comprises a reaction of (S)-1- chloro-3-(((aryl)methylene)amino)propan-2-ols (S)-(14) with alkyl 4-(3-oxomorpholine-4- yl)phenylcarbamates (15) providing the key intermediate (S)-(9), which is further subjected to hydrolytic deprotection and subsequent acylation, producing rivaroxaban. The commercially available (S)-epichlorohydrin has been conveniently used as the chiral building block for the production of the key intermediate.
A Convenient Synthesis of Rivaroxaban from (<i>S</i>)-Epichlorohydrin
作者:Aleš Halama、Radim Kruliš、Jan Rymeš
DOI:10.1080/00304948.2020.1741300
日期:2020.5.3
2-oxo-1,3-oxazolidine moiety. Chiral building blocks which have already been used in the synthesis of rivaroxaban are (S)-glycidylphthalimide 4, (S)-3-aminopropane-1,2-diol 5, (R)-epichlorohydrin 6 and (R)-glycidyl butyrate 7 (Figure 1). The procedure mentioned in the basic patent has been carried out by means of (S)glycidylphthalimide 4 as the chiral building block. This process led to the required product