Total Synthesis of Strempeliopidine and Non-Natural Stereoisomers through a Convergent Petasis Borono–Mannich Reaction
作者:Alexander W. Rand、Kevin J. Gonzalez、Christopher E. Reimann、Scott C. Virgil、Brian M. Stoltz
DOI:10.1021/jacs.2c13146
日期:——
Strempeliopidine is a member of the monoterpenoid bisindole alkaloid family, a class of natural products that have been shown to elicit an array of biological responses including modulating protein–protein interactions in human cancer cells. Our synthesis of strempeliopidine leverages palladium-catalyzed decarboxylative asymmetric allylic alkylations to install the requisite all-carbon quaternary centers
Strempelopidine 是单萜双吲哚生物碱家族的成员,该家族是一类天然产物,已被证明可以引发一系列生物反应,包括调节人类癌细胞中的蛋白质-蛋白质相互作用。我们对链烯吡啶的合成利用钯催化的脱羧不对称烯丙基烷基化来安装两种单体天然产物(蜘蛛精脒和依布胺)中所必需的全碳四元中心。采用铃木-宫浦交叉偶联随后进行非对映选择性氢化的初步研究为天然产物的结构重新分配提供了证据。我们的最终合成序列采用非对映选择性 Petasis 硼-曼尼希反应将依布纳明与三氟硼酸蜘蛛精脒衍生物偶联。这些收敛方法能够合成该异二聚体的八种非对映异构体,并为链霉素绝对构型的重新分配提供支持。