The present invention relates to compounds of formula
1
wherein A is an unsubstituted or substituted cyclic group; and
R is hydrogen or lower alkyl;
or a pharmaceutically acceptable acid addition salt thereof.
These compounds are NMDA NR-2B receptor subtype specific blockers and are useful in the treatment of neurodegeneration, depression and pain.
本发明涉及公式1的化合物,其中A为未取代或取代的环状基团;R为氢或较低烷基;或其药学上可接受的酸加盐。这些化合物是N
MDA NR-2B受体亚型特异性阻滞剂,可用于治疗神经退行性、抑郁和疼痛。