The present invention relates to compounds of formula I
wherein
R
1
, R
2
,
R
3
, and
R
4
are as defined herein
and to pharmaceutically acceptable acid addition salts thereof. Compounds of formula I or their tautomeric forms are good inhibitors of the glycine transporter 1 (GlyT-1), and have a good selectivity to glycine transporter 2 (GlyT-2) inhibitors. Such compounds are useful for the treatment of schizophrenia.
本发明涉及以下式子的化合物:
其中R1、R2、R3和R4如本文所定义,并且其药学上可接受的酸盐。式I的化合物或其互变异构体是良好的甘
氨酸转运体1(GlyT-1)
抑制剂,并且对甘
氨酸转运体2(GlyT-2)
抑制剂具有良好的选择性。这种化合物对于治疗精神分裂症是有用的。