| abstract |
The invention relates to a method for producing crystalline forms of the optical enantiomers of modafinil, comprising the following steps: i) dissolving one of the optical enantiomers of modafinil in a solvent other than ethanol; ii) crystallization of the enantiomer of modafinil; iii) isolating the obtained crystalline form of the modantinil enantiomer. The invention also relates to a method for producing optical enantiomers of modafinil. |