Lucas Callum, Fung Ethan, Nodwell Matthew, Silverman Steven, Singh Bara, Campeau Louis-Charles, Britton Robert
Department of Chemistry, Simon Fraser University Burnaby British Columbia V5A 1S6 Canada
Department of Process Research & Development, Merck & Co., Inc. Rahway NJ 07065 USA.
Chem Sci. 2024 Nov 27;16(1):318-322. doi: 10.1039/d4sc05679e. eCollection 2024 Dec 18.
4'-Thionucleosides (thNAs) are synthetic nucleoside analogues that have attracted attention as leads for drug discovery in oncology and virology. Here we report a thNA synthesis that relies on a scalable α-fluorination and aldol reaction of α-heteroaryl acetaldehydes followed by a streamlined process involving carbonyl reduction, mesylate formation and a double displacement reaction using NaSH. We demonstrate the multigram preparation of 4'-thio-5-methyluridine and highlight the production of purine and pyrimidine thNAs as well as C2'-modified thNAs.
4'-硫代核苷(thNA)是一类合成核苷类似物,作为肿瘤学和病毒学药物研发的先导化合物受到了关注。在此,我们报道了一种thNA的合成方法,该方法依赖于α-杂芳基乙醛的可扩展α-氟化和羟醛反应,随后是一个简化的过程,包括羰基还原、甲磺酸酯形成以及使用NaSH的双取代反应。我们展示了4'-硫代-5-甲基尿苷的多克级制备,并重点介绍了嘌呤和嘧啶thNA以及C2'-修饰的thNA的生产。