Asymmetric Epoxide Cyclisation Route to the F-pyran Fragment of the Altohyrtins and Key Aldol Studies
作者:James C. Anderson、Benjamin P. McDermott、Edward J. Griffin
DOI:10.1016/s0040-4020(00)00804-8
日期:2000.10
differentially protected F-pyran ring of the altohyrtins is described, which relies on a key intramolecular cyclisation of a C43 hydroxyl group onto a C38–C39 epoxide. The C38–C39 epoxide stereochemistry was achieved through optimisation of substrate control. Key aldol studies towards coupling the F-pyran ring with an E-pyran ring precursor was investigated, but unsuccessful.
记载了高保护蛋白的差异保护的F-吡喃环的不对称合成过程,该过程依赖于C 43羟基在C 38 –C 39环氧化物上的关键分子内环化作用。C 38 –C 39环氧立体化学是通过优化底物控制来实现的。进行了有关将F-吡喃环与E-吡喃环前体偶联的关键羟醛研究,但未成功。