FIELD: chemistry.SUBSTANCE: disclosed are prodrugs of NMDA antagonist, (S)-1-phenyl-2-(pyridin-2-yl)ethanamine of formula (I):where R1 isAA is a peptide bond-bound natural amino acid; or a pharmaceutically acceptable salt thereof.EFFECT: prodrugs disclosed are useful for treating depression (particularly, major depressive disorder) or pain.15 cl, 1 dwg, 5 tbl, 18 ex
NMDA ANTAGONIST PRODRUGS