The present invention relates to a compound of formula I-A or I-B
wherein X,
R
1
, R
2
and R
3
are defined herein; or to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer thereof. The compounds of formulas I-A and I-B are good inhibitors of the glycine transporter 1 (GlyT-1), and have a good selectivity to glycine transporter 2 (GlyT-2) inhibitors, suitable in the treatment of neurological and neuropsychiatric disorders.
本发明涉及一种具有
化学式I-A或I-B的化合物,其中X,R1,R2和R3如本文所定义;或者涉及其药用可接受的酸盐加合物,或者其相应的外消旋混合物,或其对映体和/或光学异构体。化合物I-A和I-B的公式是甘
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,适用于治疗神经系统和神经精神障碍。