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次要沟槽和序列选择性烷基化剂(+)-CC1065和二聚卡霉素的新型无手性截断类似物,表示为一般的I、II、III、IV和V类:其中X是一个良好的离去基团,例如
氯化物、
溴化物、
碘化物、
甲磺酸酯、对
甲苯磺酸酯、
乙酸酯、季
铵盐基团、巯基、烷基
亚砜基或烷基砜基,最好是
氯化物、
溴化物或
碘化物基团。R1是适合的次要沟槽结合剂,用于增强无手性截断环
丙烯吲哚(CI)或无手性截断二聚卡霉素与DNA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:叔丁
氧基、苄
氧基、9-
芴甲
氧基或其他常见的胺保护基,其中X是一个良好的离去基团,例如
氯化物、
溴化物、
碘化物、
甲磺酸酯、对
甲苯磺酸酯、
乙酸酯、季
铵盐基团、巯基、烷基
亚砜基或烷基砜基,最好是
氯化物、
溴化物或
碘化物基团。R1是适合的次要沟槽结合剂,用于增强共价反应性无手性截断药物基团与DNA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,最好两者都是
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、短烷基基团、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是一个良好的离去基团,R1是一个次要沟槽结合剂,例如阿多泽林和二聚卡霉素、奈曲霉素和双
苯并咪啉的结合单元。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、短烷基基团、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,以及使用所述化合物治疗癌症的方法。