Novel photoactivatable paclitaxel derivatives and uses thereof, in particular in cellbiology and cancer treatment
申请人:Max-Planck-Gesellschaft zur Förderung
der Wissenschaften e.V.
公开号:EP2565188A1
公开(公告)日:2013-03-06
The present invention provides novel photoactivatable paclitaxel derivatives wherein at least the C7 position, preferably both the C2' and C7 positions, of the paclitaxel molecule is/are substituted with a photocleavable moiety such as a chromophore.
Typically, the chromophore is selected from the group comprising 2-nitrobenzyl ethers, carbamates or carbonates and their 4,5-dialkoxy substituted variants; 2-nitrophenylethyl ethers, carbamates or carbonates and their 4,5-dialkoxy substituted variants, or their p-substituted derivatives; α-carboxy-2-nitrobenzyl ethers, carbamates or carbonates and their 4,5-dialkoxy substituted variants; 2(2-nitrophenyl)ethyl ethers, carbamates or carbonates and their 4,5-dialkoxy substituted variants; coumarin-4-ylmethyl ethers, or carbonates and their 7-alkoxy, 6,7-dialkoxy, 6-bromo-7-alkoxy or 7-dialkylamino substituted variants; p-hydroxyphenacyl ethers or carbamates and their meta-substituted derivatives or structurally related compounds.
More specifically, the chromophore is 4,5-dimethoxy-2-nitrobenyloxycarbonyl (Nvoc) or a structurally related compound.
Further aspects of the invention relate to the use of these paclitaxel derivatives in biological, medical and pharmaceutical applications, in particular in cellbiology and cancer treatment. A closely related aspect is an antitumor medicament comprising the above paclitaxel derivatives.
本发明提供了新型光活性紫杉醇衍生物,其中紫杉醇分子的至少C7位,优选是C2'和C7位均被取代为光解脱基团,例如色团。通常,色团选自包括2-硝基苯基醚、氨甲酰基或碳酸酯及其4,5-二烷氧基取代衍生物;2-硝基苯乙基醚、氨甲酰基或碳酸酯及其4,5-二烷氧基取代衍生物或其p-取代衍生物;α-羧基-2-硝基苯基醚、氨甲酰基或碳酸酯及其4,5-二烷氧基取代衍生物;2(2-硝基苯基)乙基醚、氨甲酰基或碳酸酯及其4,5-二烷氧基取代衍生物;香豆素-4-甲基醚或碳酸酯及其7-烷氧基、6,7-二烷氧基、6-溴-7-烷氧基或7-二烷基氨基取代衍生物;p-羟基苯乙酰醚或氨甲酰基及其间位取代衍生物或结构相关化合物。更具体地,色团是4,5-二甲氧基-2-硝基苯氧羰基(Nvoc)或结构相关化合物。本发明的进一步方面涉及这些紫杉醇衍生物在生物、医学和制药应用中的使用,特别是在细胞生物学和癌症治疗中。紧密相关的方面是包括上述紫杉醇衍生物的抗肿瘤药物。