AV-101 (4-Cl-KYN) , a prodrug antagonist at the glycine site of the NMDA receptor, has antidepressant activity and reduces levodopa-induced dyskinesia in MPTP monkeys.

Orphenadrine is a noncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist that inhibits clonal HERG channels in a concentration-dependent manner, producing an IC of 0.85 μM in HEK cells.Orphenadrine is an antagonist of central and peripheral muscarinic receptors. Attenuation is blocked by mutations in pore residues Y652 or F656. Orphenadrine has antispasmodic, analgesic, and anticholinergic activity and protects against glutamatergic neurotoxicity in vitro and in vivo.Orphenadrine has inhibitory effects on sodium channels and can be used in the treatment of Parkinson's disease.

1-氨基环丙烷甲酸 (ACPC) 是乙烯合成的中间体，乙烯是负责从种子发芽到器官衰老等生物过程的植物激素。