ß-AMINO ACID DERIVATIVES

摘要

The present invention relates to a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof, wherein R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, R<SUP>8</SUP> and R<SUP>9</SUP> are as defined herein, as well as to compositions containing such a compound and the uses of such a compound. Compounds of formula (I) are especially useful in the treatment of pain.