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US 7,582,752 B2Granted
Process for the resolution of nefopam
AssigneeSosei R&D Ltd.
InventorsMichael John Harris, Stuart Brown
Life of this patent
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Abstract
A process for increasing the optical purity of a mixture of enantiomers of nefopam uses a substantially single enantiomer of a O,O-diaroyltartaric acid as a resolving agent, via a bisnefopam salt of the acid. This salt is new.
Claims11
A process for increasing the optical purity of a mixture of enantiomers of nefopam by using a substantially single enantiomer of a O,O-diaroyltartaric acid as a resolving agent, via a bisnefopam salt of the acid.
A bisnefopam salt of a substantially single enantiomer of a O,O-diaroyltartaric acid.
Dependencies are inferred from the claim text.