Compositions and methods of the use thereof achiral analogues of CC-1065 and the duocarmycins
申请人:——
公开号:US20030073731A1
公开(公告)日:2003-04-17
The present invention relates to novel achiral seco-analogues of the DNA minor groove and sequence-selective alkylating agents (+)-CC1065 and the duocarmycins, depicted as general class I, II III, IV and V:
1
wherein X is a good leaving group, such as a chloride, a bromide, an iodide, a mesylate, a tosylate, an acetate, a quaternary ammonium moiety, a mercaptan, an alkylsulfoxyl, or an alkylsulfonyl group, preferably either a chloride, a bromide, or an iodide group. R
1
is a suitable minor groove binding agent to enhance the interactions of the achiral seco-cyclopropaneindole (CI) or an achiral seco-duocarmycin with specific sequences of DNA. Examples of the DNA binders are given in Table 4. The preferred DNA binders are groups A, C, D, E, F, G. H and I. R
1
can also include the following: t-butoxy, benzyloxy, 9-fluorenylmethyloxy or other common protecting groups for amines wherein X is a good leaving group, such as a chloride, a bromide, an iodide, a mesylate, a tosylate, an acetate, a quaternary ammonium moiety, a mercaptan, an alkylsulfoxyl, or an alkylsulfonyl group, preferably either a chloride, a bromide, or an iodide group. R
1
is a suitable minor groove binding agent to enhance the interactions of the covalently reactive achiral seco-pharmacophore with specific sequences of DNA. Examples of the DNA binders are given in Table 4. The preferred DNA binders are groups A, C, D, E, F, G, H, I, J, K and L. R
2
and R
3
can be hydrogen or short chain alkyl (C1-C5) groups, preferably both being hydrogen atoms. The alkyl groups may be straight chain or branched and include such groups as ethyl, propyl, butyl, pentyl and hexyl. R
4
and R
5
can be hydrogen atoms, short alkyl groups, trifluoromethyl moieties, and alkyloxycarbonyl groups. The preferred R
4
and R
5
groups are methoxycarbonyl and trifluoromethyl. R can be either a benzyl, a benzyloxycarbonyl, a hydrogen atom, a 4-nitrobenzyloxycarbonyl, or a N′-methylpiperazinyl-N-carbonyl group wherein X is a good leaving group, R
1
is a minor groove binding agent, such as the binding units of adozelesin and duocarmycins, netropsin and bisbenzimide. R
2
and R
3
can be hydrogen or short-chain alkyl (C1-C5) groups. R
4
and R
5
can be hydrogen atoms, short alkyl groups, trifluoromethyl moieties, and alkyloxycarbonyl groups. R can be either a benzyl, a benzyloxycarbonyl, a hydrogen atom, a 4-nitrobenzyloxycarbonyl, or a N′-methylpiperazinyl-N-carbonyl group. The present invention is further directed to pharmaceutical compositions thereof, and as a method for treatment of cancer using the subject compounds.
本发明涉及DNA次级沟槽和序列选择性烷基化剂(+)-CC1065和duocarmycins的新型非手性seco类似物,表示为一般的I、II、III、IV和V类:其中X是良好的离去基团,例如氯化物、溴化物、碘化物、甲磺酸盐、对甲苯磺酸盐、乙酸盐、季铵基、巯基、烷基亚砜或烷基磺酰基团,优选为氯化物、溴化物或碘化物基团。R1是适当的次级沟槽结合剂,以增强非手性seco-环丙烷吲哚(CI)或非手性seco-duocarmycin与DNA的特定序列的相互作用。DNA结合剂的示例见表4。首选的DNA结合剂是A、C、D、E、F、G、H和I组。R1还可以包括以下内容:t-丁氧基、苄氧基、9-芴甲氧基或其他常见的胺保护基,其中X是良好的离去基团,例如氯化物、溴化物、碘化物、甲磺酸盐、对甲苯磺酸盐、乙酸盐、季铵基、巯基、烷基亚砜或烷基磺酰基团,优选为氯化物、溴化物或碘化物基团。R1是适当的次级沟槽结合剂,以增强共价反应的非手性seco药效团与DNA的特定序列的相互作用。DNA结合剂的示例见表4。首选的DNA结合剂是A、C、D、E、F、G、H、I、J、K和L组。R2和R3可以是氢或短链烷基(C1-C5)基团,优选两者均为氢原子。烷基基团可以是直链或支链,并包括乙基、丙基、丁基、戊基和己基等基团。R4和R5可以是氢原子、短烷基、三氟甲基基团和烷氧羰基基团。首选的R4和R5基团是甲氧羰基和三氟甲基。R可以是苄基、苄氧羰基、氢原子、4-硝基苄氧羰基或N'-甲基哌嗪基-N-羰基基团,其中X是良好的离去基团,R1是次级沟槽结合剂,例如adozelesin和duocarmycins、netropsin和bisbenzimide的结合单元。R2和R3可以是氢或短链烷基(C1-C5)基团。R4和R5可以是氢原子、短烷基、三氟甲基基团和烷氧羰基基团。R可以是苄基、苄氧羰基、氢原子、4-硝基苄氧羰基或N'-甲基哌嗪基-N-羰基基团。本发明还涉及其制药组合物,并作为治疗癌症的方法使用所述化合物。