A process for the resolution of 6-methoxy-alpha-methyl-2-naphthaleneacetic racemic acid into its enantiomers
申请人:FARCHEMIA S.r.l.
公开号:EP0780358B1
公开(公告)日:2000-07-19
US5760287A
申请人:——
公开号:US5760287A
公开(公告)日:1998-06-02
Process for the resolution of 6-methoxy-alpha-methyl-2-naphthaleneacetic
申请人:Farchemia S.R.L.
公开号:US05760287A1
公开(公告)日:1998-06-02
Naproxene ((+)-6-methoxy-.alpha.-methyl-2-naphthaleneacetic acid) is recovered from the corresponding racemic acid by treatment of the latter with N-substituted R-(-)-2-amino-1-butanols and recovery of the resulting diastereomeric salt.