The application of phosphorodiamidate technology to pyrimidine and purine nucleosides with anticancer activity to potentially overcome the resistance mechanisms associated with parent nucleosides is reported. Sixteen symmetrical phosphorodiamidates were prepared from the natural amino acids l‐alanine and glycine. All the compounds were evaluated for their cytotoxic activity against a wide panel of solid and leukaemic tumour cell lines. In addition, a carboxypeptidase Y assay was performed on a representative phosphorodiamidate in order to reveal the putative bioactivation pathway for the reported phosphorodiamidate‐type prodrugs.

中文翻译：

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对称二酰胺类作为一类磷酸盐前药，可提供抗癌核苷类似物的5'-单磷酸盐形式。

报道了将二氨基磷酸酯技术应用于具有抗癌活性的嘧啶和嘌呤核苷，以潜在地克服与亲本核苷相关的抗性机制。由天然氨基酸l-丙氨酸和甘氨酸制备了16种对称的二氨基氨基磷酸酯。评估了所有化合物对多种实体和白血病肿瘤细胞系的细胞毒活性。此外，对代表性的二氨基磷酸二酰胺酯进行了羧肽酶Y分析，以揭示所报道的二氨基磷酸酯类前药的假定生物活化途径。