PROCESS FOR THE RESOLUTION OF ZOPICLONE AND INTERMEDIATE COMPOUNDS
申请人:Bleda David Fernandez
公开号:US20090036681A1
公开(公告)日:2009-02-05
The present invention refers to a process for the resolution into one of its enantiomers of the racemate of compound of formula (I):
which comprises separating said one of its enantiomers from a diastereoisomeric salt of formula (II), which is formed by reaction of the racemic mixture with an optically active acetylated amino acid of formula (III). The invention also refers to new intermediates which are useful to carry out the process of the invention.
Process for the resolution of zopiclone and intermediate compounds
申请人:ESTEVE QUIMICA, S.A.
公开号:EP2020403A1
公开(公告)日:2009-02-04
The present invention refers to a process for the resolution into one of its enantiomers of the racemate of compound of formula (I):
which comprises separating said one of its enantiomers from a diastereoisomeric salt of formula (II), which is formed by reaction of the racemic mixture with an optically active acetylated amino acid of formula (III). The invention also refers to new intermediates which are useful to carry out the process of the invention.