申请人:Raker Joseph
公开号:US20130172292A1
公开(公告)日:2013-07-04
The present invention provides a compound which has the effect of PDE 10A inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound represented by the formula (1′): wherein, Ring A′ represents an optionally substituted pyridine ring, an optionally substituted pyridazine ring, a pyrimidine ring, or 10 a pyrazine ring, R1′ represents (1) wherein, R
1a′
represents an optionally substituted phenyl group, or an optionally substituted 5- to 10-membered heterocyclic group, Ring B2 represents a bond, —S—, -0-, —CO—, an optionally substituted methylene group, or —NR
a′
-(R
a′
represents a hydrogen atom, or an optionally substituted C
1-6
alkyl group), and Ring B
1′
represents an optionally further substituted 6- to 10-membered aromatic hydrocarbon ring, or an optionally further substituted 5- to 10-membered aromatic heterocyclic ring, or alternatively, L′ and R
1a′
may be taken together to form an optionally substituted bicyclic or tricyclic fused heterocyclic group, or (2), wherein, R
1b′
represents an optionally substituted phenyl group, or an optionally substituted 5- to 10-membered heterocyclic group, Ring B
2′
represents an optionally substituted benzene ring, an optionally substituted pyridine ring, an optionally substituted pyrimidine ring, an optionally substituted pyrazine ring, or an optionally substituted pyridazine ring, Ring D′ represents an optionally further substituted 5- or 6-membered ring, R
2′
represents a hydrogen atom, or a substituent, X′ represents ═N— or ═CR
b′
—(R
b′
represents a hydrogen atom, or a substituent), - - - - - represents that R
b′
and R
2′
may form, taken together with the carbon atom and the nitrogen atom to which they are each adjacent, an optionally substituted 5- to 7-membered ring when.X′ is ═CR
b′
, or a salt thereof.
本发明提供一种具有PDE 10A抑制作用的化合物,可用作预防或治疗精神分裂症等药物。化合物表示为公式(1'):其中,环A'表示可选取取代的吡啶环、可选取取代的吡嗪环、嘧啶环或吡嗪环,R1'表示(1)其中,R1a'表示可选取取代的苯基或可选取取代的5-至10-成员杂环基,环B2表示键、-S-、-O-、可选取取代的亚甲基基或-NRa'(Ra'表示氢原子或可选取取代的C1-6烷基基),环B1'表示可选进一步取代的6-至10-成员芳香烃环或可选进一步取代的5-至10-成员芳香杂环环,或者,L'和R1a'可取代成为可选取代的双环或三环融合杂环基,或(2),其中,R1b'表示可选取取代的苯基或可选取取代的5-至10-成员杂环基,环B2'表示可选取取代的苯环、可选取取代的吡啶环、可选取取代的嘧啶环、可选取取代的吡嗪环或可选取取代的吡嗪环,环D'表示可选进一步取代的5-或6-成员环,R2'表示氢原子或取代基,X'表示═N-或═CRb'-(Rb'表示氢原子或取代基),- - - - - 表示当X'为═CRb'时,Rb'和R2'可与它们各自相邻的碳原子和氮原子一起形成可选取代的5-至7-成员环,或其盐。