Method for the production of crystalline forms and crystalline forms of optical enantiomers of modafinil

  • US 20060135621A1
  • Filed: 12/18/2003
  • Published: 06/22/2006
  • Est. Priority Date: 12/20/2002
  • Status: Active Grant
First Claim
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1. Process for preparation of crystalline forms of the optical enantiomers of modafinil, comprising the following stages:

  • i) dissolving one of the optical enantiomers of modafinil in a solvent other than ethanol, ii) crystallising the enantiomer of modafinil, iii) recovering the crystalline form of the enantiomer of modafinil so obtained.

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