申请人:Kolczewski Sabine
公开号:US08524909B2
公开(公告)日:2013-09-03
The present invention relates to a compound of formula I
wherein
R1/R2 are independently from each other hydrogen, (CR2)o-cycloalkyl, optionally substituted by lower alkyl or hydroxy, or are lower alkyl or heterocycloalkyl, and
o is 0 or 1; and
R may be the same or different and is hydrogen or lower alkyl; or
R1 and R2 may form together with the N atom to which they are attached a heterocycloalkyl group, selected from the group consisting of pyrrolidinyl, piperidinyl, 3-aza-bicyclo[3.1.0]hex-3-yl or 2-aza-bicyclo[3.1.0]hex-2-yl, which are optionally substituted by hydroxy;
R3 is S-lower alkyl, lower alkyl, lower alkoxy or cycloalkyl;
R3′ is hydrogen, lower alkyl substituted by halogen, lower alkyl or lower alkoxy
R4 is lower alkyl substituted by halogen, lower alkyl or lower alkoxy;
X is —O— or —CH2—;
X′ is —O— or —CH2—; with the proviso that one of X or X′ is always —O— and the other is —CH2—;
or to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer thereof.
It has been found that the compounds of formula I are good inhibitors of the glycine transporter 1 (GlyT-1) and therefore they may be used for the treatment of schizophrenia.
本发明涉及一种式子I的化合物,其中R1/R2分别独立于氢,(CR2)o-环烷基,可选地被较低烷基或羟基取代,或为较低烷基或杂环烷基,o为0或1; R可以相同或不同,是氢或较低烷基; 或者R1和R2可以与它们附着的N原子一起形成一个杂环烷基,所选自吡咯烷基,哌啶基,3-氮杂双环[3.1.0]己-3-基或2-氮杂双环[3.1.0]己-2-基,可选地被羟基取代; R3是S-较低烷基,较低烷基,较低烷氧基或环烷基; R3'是氢,被卤素取代的较低烷基,较低烷基或较低烷氧基; R4是被卤素取代的较低烷基,较低烷基或较低烷氧基; X是-O-或-CH2-; X'是-O-或-CH2-; 前提是X或X'中的一个始终为-O-,而另一个为-CH2-; 或其药学上可接受的酸加成盐,其外消旋体混合物,或其相应的对映体和/或光学异构体。已经发现,式I的化合物是甘氨酸转运蛋白1(GlyT-1)的良好抑制剂,因此它们可用于治疗精神分裂症。