Multitargeted pyrimidine nucleoside carbamates, substituted with fluorine at both the base and the sugar moieties, are disclosed (see Formula I):
where R=linear or branched alkyl (C1-7); R′=H, hydroxy protecting group; R″=H, phosphate ester, amino acid alkyl (C1-7) ester phoshoramidate, or phosphorodiamidate. The disclosed compounds are fluoropyrimidine prodrugs that are characterized by a novel combination of structural components that provide intracellular metabolites capable of 1) inhibiting several cellular enzymes required for the synthesis and proper functioning of DNA, and 2) causing DNA damage by misincorporation into DNA. By acting on multiple targets with different mechanisms of action, compounds of Formula I reduce the likelihood of the emergence of drug resistance, a major drawback of the use of nucleoside-based anticancer and antiviral drugs. Due to the metabolic activation profile of compounds of Formula I, characteristic adverse effects and potential lethality of the fluoropyrimidine class of anticancer drugs may be alleviated. Compounds and compositions of the present disclosure can be used in treatment of cancer and viral infections.
多靶点
嘧啶核苷
氨基甲酸酯的碱基和糖基均被
氟取代(见式 I):
其中,R=直链或支链烷基(C1-7);R′=H,羟基保护基;R″=H,
磷酸酯,
氨基酸烷基(C1-7)酯
磷酰胺酯或
磷酰二酰胺酯。所公开的化合物是
氟嘧啶原药,其特点是结构成分的新颖组合,提供的细胞内代谢物能够:1)抑制 DNA 合成和正常功能所需的几种细胞酶;2)通过误入 DNA 造成 DNA 损伤。通过作用于具有不同作用机制的多个靶点,式 I 化合物降低了出现耐药性的可能性,而耐药性是使用核苷类抗癌和抗病毒药物的一个主要缺点。由于式 I 化合物的代谢活化特征,可减轻
氟嘧啶类抗癌药物的特征性不良反应和潜在致死性。本公开的化合物和组合物可用于治疗癌症和病毒感染。