The invention provides a compound of the formula (1):
or a salt, N-oxide or tautomer thereof; wherein R
1
is cyano or C
1-4
alkyl; R
2
is hydrogen or C
1-4
alkyl; R
3
is hydrogen or C
1-4
alkyl; R
4
and R
5
are the same or different and each is selected from hydrogen, saturated C
1-4
hydrocarbyl and saturated C
1-4
hydrocarbyloxy; R
6
and R
7
are the same or different and each is selected from hydrogen, halogen, CN, C
1-4
alkyl and C
1-4
alkoxy wherein the C
1-4
alkyl and C
1-4
alkoxy are each optionally substituted with hydroxy, C
1-2
alkoxy or by one or more flourine atoms; R
8
is hydrogen or C
1-4
alkyl; Q is an alkylene chain of 1 to 4 carbon atoms in length between the moiety Ar and the nitrogen atom N, wherein one or more of the 1 to 4 carbon atoms of the alkylene chain may optionally be substituted with one or two C
1-4
alkyl groups, or wherein one carbon atom of the 1 to 4 carbon atoms of the alkylene chain may optionally be substituted with a group —CH
2
CH
2
— which together with the said one carbon atom forms a cyclopropyl group; m is 1, 2, 3 or 4; n is 0 or 1; and Ar is a monocyclic or bicyclic aryl or heteroaryl group of 5 to 10 ring members containing 0, 1, 2, 3 or 4 heteroatom ring members selected from O, N and S, the aryl or heteroaryl group being optionally substituted with one to four substituents R
13
as defined in the claims.
The compounds are inhibitors of Chk-1 kinase and are active against cancers.
本发明提供了化合物的公式(1):或其盐,N-
氧化物或互变异构体;其中R1是
氰基或C1-4烷基;R2是
氢或C1-4烷基;R3是
氢或C1-4烷基;R4和R5相同或不同,每个都选择自
氢,饱和的C1-4烃基和饱和的C1-4烃基
氧;R6和R7相同或不同,每个都选择自
氢,卤素,CN,C1-4烷基和C1-4烷
氧,其中C1-4烷基和C1-4烷
氧均可选地用羟基,C1-2烷
氧或一个或多个
氟原子取代;R8是
氢或C1-4烷基;Q是长度为1到4个
碳原子的烷基链,在基团Ar和
氮原子N之间,其中1到4个
碳原子中的一个或多个可以可选地用一个或两个C1-4烷基取代,或其中1个
碳原子可以可选地用一个—CH2CH2—基团取代,与所述1个
碳原子一起形成环丙基基团;m为1、2、3或4;n为0或1;Ar是一个含有0、1、2、3或4个杂环原子环成的5到10个环成员的单环或双环芳基或杂芳基,所述芳基或杂芳基可选地用一到四个定义如权利要求中所定义的取代基R13取代。这些化合物是Chk-1激酶的
抑制剂,对癌症具有活性。