申请人:Kai Hiroyuki
公开号:US20110183939A1
公开(公告)日:2011-07-28
The present invention provides a novel P2X
3
and/or P2X
2
/
3
receptor antagonist.
A compound represented by the formula (I);
wherein Z
1
is optionally protected hydroxy, etc.; Z
2
is —C(═O)—, etc.; Z
3a
and Z
3b
are taken together ═O or ═S; t is an integer of 0 to 4; R
4a
and R
4b
are each independently, hydrogen or substituted or unsubstituted lower alkyl, etc.; m and n are each independently an integer of 0 to 2; k is an integer of 0 or 1; Ring A is an aromatic carbocyclic ring or a heterocyclic ring, etc.; B is aromatic carbocyclic ring-diyl or heterocyclic ring-diyl, etc.; R
1a
and R
1b
are each independently halogen, hydroxy, substituted or unsubstituted lower alkyl, etc.; R
2
is substituted or unsubstituted alkyl, etc.; R
3
is substituted or unsubstituted alkyl, substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group, etc.; or its pharmaceutically acceptable salt, or a solvate thereof is provided.
本发明提供了一种新型的P2X3和/或P2X2/3受体拮抗剂。化合物由公式(I)表示;其中,Z1是可选的保护羟基等;Z2是-C(═O)-等;Z3a和Z3b一起取═O或═S;t为0至4的整数;R4a和R4b各自独立地为氢或取代或未取代的低碳基等;m和n各自独立地为0至2的整数;k为0或1的整数;环A是芳香环烃环或杂环环,等;B是芳香环烃环二基或杂环环二基等;R1a和R1b各自独立地为卤素、羟基、取代或未取代的低碳基等;R2为取代或未取代的烷基等;R3为取代或未取代的烷基、取代或未取代的芳基或取代或未取代的杂环基等;或其药学上可接受的盐或其溶剂。