a chiral spiro-ether that has been reported as a potential topical therapy for pain associated with the Nav1.7 sodium ion channel encoded by the gene SCN9A. A pilot-scale synthesis is presented that is highlighted by an asymmetric aldol coupling at ambient temperature, used to create a quaternary chiral center. Although only a moderate ee is obtained, the removal of the undesired isomer is achieved
TV-45070是一种含有手性螺醚的小分子内酰胺,据报道是潜在的局部疗法,用于治疗与
基因SCN9A编码的Na v 1.7
钠离子通道相关的疼痛。提出了中试规模的合成,其突出之处在于在环境温度下的不对称醛醇偶合,用于形成四元手性中心。尽管仅获得适度的ee,但通过从反应中优先沉淀出近消旋混合物,将对映体纯的异构体留在溶液中,从而去除了不需要的异构体。环化形成最终的A
PI使用了一个不常见的基于
二苯基膦的离去基团,当其他传统的离去基团失败时,该基团在新戊基系统上被证明是成功的。