Synthesis and Preliminary Anticancer Activity Study of New 6-Mercaptopurine Derivatives
作者:Dunya L. Al-Duhaidahawi
DOI:10.14233/ajchem.2018.21366
日期:——
with 5-phosphoribosyl transferase [3,4]. For the conventional purine anticancer drug, 6-mercaptopurine central pathways of deactivation (Fig. 1) include methylation of SH group by thiopurine-S-methyltransferase (TPMT) and oxidation by the enzyme xanthine oxidase (XO) [5]. Heterocyclic analogs of 6-mercaptopurine, such as azathioprine, were invented to shield it from metabolic effects [6,7]. In spite
巯基嘌呤(Puri-Nethol;6-MP)几乎专门用作急性白血病的持续治疗 [1,2]。游离碱结构被敏感的癌细胞转化为核糖核苷酸 6-mercaptopurin-9-yl (MPRP),它是药物与 5-磷酸核糖基转移酶相互作用时产生的 [3,4]。对于常规的嘌呤抗癌药物,6-巯基嘌呤的中枢失活途径(图 1)包括硫嘌呤-S-甲基转移酶(TPMT)对 SH 基团的甲基化和黄嘌呤氧化酶(XO)的氧化作用 [5]。发明了 6-巯基嘌呤的杂环类似物,例如硫唑嘌呤,以保护其免受代谢影响 [6,7]。尽管硫唑嘌呤具有抗肿瘤活性,但它并不从根本上优于 6-巯基嘌呤 [8]。它作为免疫抑制剂在器官移植中起着重要作用[9]。今天,这些硫嘌呤碱仍然是骨髓细胞和重症淋巴细胞白血病患者开始和维持治疗的基本手段 [10,11]。不管其设置的临床意义如何,6-巯基嘌呤具有特殊的修复缺陷 [12],这一直在刺激嘌呤类似