Synthesis of Fingolimod Employing Regioselective Aziridine Ring-Opening Reaction as a Key Step
作者:Jan Doubský、Stanislav Rádl、Josef Cinibulk、Robert Klvaňa
DOI:10.1021/acs.oprd.1c00248
日期:2022.3.18
An efficient and scalable synthesis of the immunomodulating drug fingolimod hydrochloride has been developed with the aziridine regioselective ring-opening reaction as a key step. This manuscript describes design, detailed synthetic route scouting, and optimization study of the aziridine ring-opening reaction. As a starting material for the polar part of the fingolimod molecule, cheap, common, and
以氮丙啶区域选择性开环反应为关键步骤,开发了一种有效且可扩展的免疫调节药物盐酸芬戈莫德合成方法。这份手稿描述了氮丙啶开环反应的设计、详细的合成路线探索和优化研究。作为芬戈莫德分子极性部分的起始材料,使用廉价、普通和广泛市售的三(羟甲基)氨基甲烷。n-辛基通过 Kumada 或 Negishi 交叉偶联引入分子中,或者通过 Sonogashira 交叉偶联然后氢化。最后一步包括对丙酮化物和 Boc 基团进行一锅酸性脱保护,从而直接从粗反应混合物中提供高纯度的盐酸芬戈莫德。所述工艺高效,具有工业实用性,已成功应用于500g规模的目标产品。