Process for the preparation of and crystalline forms of optical enantiomers of modafinil

Process for the preparation of and crystalline forms of optical enantiomers of modafinil

  • CN 101,654,423 A
  • Filed: 12/18/2003
  • Published: 02/24/2010
  • Est. Priority Date: 12/20/2002
  • Status: Active Application
First Claim
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1. be used to prepare the method for the crystalline form of modafinil enantiomers, comprise the following steps:

  • I) one of them modafinil enantiomers is dissolved in the solvent except that ethanol,Ii) make the enantiomer crystallization of modafinil,Iii) reclaim the crystalline form of gained modafinil enantiomer.

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