Benzo[A] [phenazin-11-carboxamide derivatives and their use as joint inhibitors of topomerase I and II
申请人:——
公开号:US20030139409A1
公开(公告)日:2003-07-24
A compound which is a benzo[a]phenazine-11-carboxamide derivative of formula (I) wherein each of R
1
to R
4
, which are the same or different, is selected from hydrogen, halogen, hydroxyl, C
1
-C
6
alkoxy which is unsubstituted or substituted, heteroaryloxy, C
1
-C
6
alkyl which is unsubstituted or substituted, nitro, cyano, azido, amidoxime, CO
2
R
10
, CON(R
12
)
2
, OCON(R
12
), SR
10
, SOR
11
, SO
2
(R
11
), SO
2
N(R
12
)
2
, N(R
12
)
2
, NR
10
SO
2
R
11
, N(SO
2
R
11
)
2
NR
10
(CH
2
)
n
CN, NR
10
COR
11
, OCOR
11
or COR
10
; each of R
5
to R
7
, which are the same or different, is selected from hydrogen, halogen, hydroxy, C
1
-C
6
alkoxy, C
1
-C
6
alkyl, SR
10
and N(R
12
)
2
; Q is C
1
-C
6
alkylene which is unsubstituted or substituted by (i) C
1
-C
6
alkyl which is unsubstituted or substituted, (ii) hydroxy, provided that the hydroxy group is not, to either of the N atoms adjacent to Q in formula (I), (iii) CO
2
R
10
, or (iv) CON(R
12
); R
1
and R
9
, which are the same or different, are each hydrogen or C
1
-C
6
alkyl, or R
8
and R
9
together with the nitrogen atom to which they are attached form a saturated 5- or 6-membered N-containing heterocyclic ring which may include one additional heteroatom selected from O, N and S, or one of R
8
and R
9
is an alkylene chain optionally interrupted by O, N or S, which is attached to a carbon atom on the alkylene chain represented by Q to complete a saturated 5- or 6-membered N-containing heterocyclic ring as defined above; or a pharmaceutically acceptable salt thereof; with the proviso that at least one R
1
to R
4
is other than hydrogen. These compounds are inhibitors of topoisomerase I and/or topoisomerase II and can be used to treat tumours, including tumours which express MDR.
一种化合物,为公式(I)的苯并[a]菲嗪-11-羧酰胺衍生物,其中R1至R4分别选择自氢、卤素、羟基、未取代或取代的C1-C6烷氧基、杂环氧基、未取代或取代的C1-C6烷基、硝基、氰基、偶氮基、酰肟基、CO2R10、CON(R12)2、OCON(R12)、SR10、SOR11、SO2(R11)、SO2N(R12)2、N(R12)2、NR10SO2R11、N(SO2R11)2NR10(CH2)nCN、NR10COR11、OCOR11或COR10;R5至R7分别选择自氢、卤素、羟基、C1-C6烷氧基、C1-C6烷基、SR10和N(R12)2;Q为未取代或取代的C1-C6烷基,可以通过(i)未取代或取代的C1-C6烷基,(ii)羟基,但羟基不能与公式(I)中相邻的任何N原子相连,(iii)CO2R10或(iv)CON(R12)进行取代;R1和R9分别为氢或C1-C6烷基,或R8和R9与它们所连接的氮原子共同形成饱和的5-或6-成员的含氮杂环,该杂环可以包括来自O、N和S的一个额外的杂原子,或者R8和R9中的一个是由O、N或S间断的烷基链,该烷基链连接到由Q表示的烷基链上的碳原子上,以完成如上所定义的饱和的5-或6-成员的含氮杂环;或其药学上可接受的盐;但至少有一个R1至R4不是氢。这些化合物是拓扑异构酶I和/或拓扑异构酶II的抑制剂,可用于治疗肿瘤,包括表达MDR的肿瘤。