The present invention relates to a compound of formula I
wherein
R
1
, R
2
, X, Ar
1
and Ar
2
are as defined herein and to pharmaceutically acceptable acid addition salts, to a racemic mixtures, or to their corresponding enantiomers and/or optical isomers thereof. Compounds of the invention are good inhibitors of the glycine transporter 1 (GlyT-1), and have a good selectivity to glycine transporter 2 (GlyT-2) inhibitors.
本发明涉及一种具有式I的化合物
其中
R
1
,R
2
,X,Ar
1
和Ar
2
如本文所定义,并且涉及药学上可接受的酸盐加合物,外消旋混合物,或其相应的对映体和/或光学异构体。本发明的化合物是甘
氨酸转运蛋白1(GlyT-1)的良好
抑制剂,并且对甘
氨酸转运蛋白2(GlyT-2)
抑制剂具有良好的选择性。