申请人:Song Yongsheng
公开号:US20070082920A1
公开(公告)日:2007-04-12
Disclosed herein are pyrido[2,3-d]pyrimidines having the structure
wherein R
1
, and R
2
are independently selected from nitro and amino;
wherein R
3
is selected from alkyl (C1-C10) and cycloalkyl (C3-C8);
wherein R
4
is selected from hydrogen, benzyl, alkyl (C1-C10), cycloalkyl (C3-C8), arylalkyl (C4-C8), and aryl (C3-C8);
wherein R
5
and R
6
are independently selected from hydrogen, benzyl, alkyl (C1-C10), cycloalkyl (C3-C8), arylalkyl (C4-C14), and aryl (C3-C8);
wherein R
3
and R
4
may form a ring;
wherein R
5
and R
6
may form a ring or a heterocyclic structure; and
wherein R
5
and R
6
are independently unsubstituted or substituted, wherein each substituent is independently selected from halogen, amino, alkyl (C1-C6), haloalkyl (C1-C6), alkoxy(C1-C6), alkylenedioxy, aryl, heteroaryl, and cycloalkyl (C3-C8). Also disclosed are methods for the preparation of compounds of Formula I and various intermediates. These compounds are useful as NAD+-dependent DNA ligase inhibitors.
本文披露了具有以下结构的吡啶并[2,3-d]嘧啶:
其中R1和R2独立选择自硝基和氨基;
其中R3选择自烷基(C1-C10)和环烷基(C3-C8);
其中R4选择自氢、苄基、烷基(C1-C10)、环烷基(C3-C8)、芳基烷基(C4-C8)和芳基(C3-C8);
其中R5和R6独立选择自氢、苄基、烷基(C1-C10)、环烷基(C3-C8)、芳基烷基(C4-C14)和芳基(C3-C8);
其中R3和R4可以形成环;
其中R5和R6可以形成环或杂环结构;
其中R5和R6独立地未经取代或取代,其中每个取代基独立选择自卤素、氨基、烷基(C1-C6)、卤代烷基(C1-C6)、烷氧基(C1-C6)、烷二氧基、芳基、杂芳基和环烷基(C3-C8)。
还披露了制备式I化合物和各种中间体的方法。这些化合物可用作NAD+依赖的DNA连接酶抑制剂。