Use of amino acid derivative for the preparation of pharmaceutical compositions for treating phantom pain or diabetic neuropathic pain

摘要

The present invention concerns the use amino acid derivative of formula (I), where Ar is phenyl which is unsubstituted or substituted with at least one halogen substituents, Q is lower alkoxy containing 1 to 3 carbon atoms and Q1 is methyl, or a pharmaceutically acceptable salt thereof for preparing a pharmaceutical composition for the treatment of phantom pain or diabetic neuropathic pain.