[EN] BENZO[A]PHENAZIN-11-CARBOXAMIDE DERIVATIVES AND THEIR USE AS JOINT INHIBITORS OF TOPOMERASE I AND II<br/>[FR] DERIVES DE BENZO[A]PHENAZINE-11-CARBOXAMIDE ET LEUR UTILISATION COMME INHIBITEURS COMMUNS DE LA TOPOMERASE I ET II
申请人:XENOVA LTD
公开号:WO2001046157A1
公开(公告)日:2001-06-28
A compound which is a benzo[a]phenazine-11-carboxamide derivative of formula (I) wherein each of R1 to R4, which are the same or different, is selected from hydrogen, halogen, hydroxyl, C¿1?-C6 alkoxy which is unsubstituted or substituted, heteroaryloxy, C1-C6 alkyl which is unsubstituted or substituted, nitro, cyano, azido, amidoxime, CO2R?10, CON(R12)¿2, OCON(R?12), SR10, SOR11, SO¿2(R11), SO2N(R12)2, N(R12)2, NR10SO2R11, N(SO¿2R?11)2NR10(CH2)nCN, NR?10COR11, OCOR11 or COR10¿; each of R5 to R7, which are the same or different, is selected from hydrogen, halogen, hydroxy, C¿1?-C6 alkoxy, C1-C6 alkyl, SR?10¿ and N(R12)2; Q is C1-C6 alkylene which is unsubstituted or substituted by (i) C1-C6 alkyl which is unsubstituted or substituted, (ii) hydroxy, provided that the hydroxy group is not α to either of the N atoms adjacent to Q in formula (I), (iii) CO2R10, or (iv) CON(R?12); R8 and R9¿, which are the same or different, are each hydrogen or C¿1?-C6 alkyl, or R?8 and R9¿ 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 R9¿ 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 R1 to R4 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.
化合物是公式(I)的苯并[a]菲噻唑-11-羧酰胺衍生物,其中R1至R4中的每一个,相同或不同,从氢,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中选择;R5至R7中的每一个,相同或不同,从氢,卤素,羟基,C1-C6烷氧基,C1-C6烷基,SR10和N(R12)2中选择;Q是未取代或取代的C1-C6烷基,由(i)未取代或取代的C1-C6烷基,(ii)羟基,前提是羟基不是在公式(I)中与Q相邻的任何一个氮原子的α位上,(iii)CO2R10或(iv)CON(R12)取代的;R8和R9',相同或不同,均为氢或C1-C6烷基,或R8和R9'与它们连接的氮原子共同形成饱和的5-或6-成员N-含杂环,该杂环可以包括从O,N和S中选择的一个额外的杂原子,或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以形成上述定义的饱和的5-或6-成员N-含杂环;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。