lenalidomide acid addition salt, processes for preparing a lenalidomide acid addition salt, and for purifying lenalidomine base, pharmaceutical composition, and use of acid addition salts and / or composition.

摘要

The present invention relates to acid addition salts of lenalidomide, wherein said acid has a pKa lower than 1, preferably selected from hydrochloric acid, hydrobromic acid, methane sulfonic acid, ethane sulfonic acid, benzene sulfonic acid and p-toluenesulfonic acid, to processes for their making, and use in medicine, and to purification of lenalidomide base.