Synthesis of the C22−C26 Tetrahydropyran Segment of Phorboxazole by a Stereoselective Prins Cyclization
作者:Scott D. Rychnovsky、Christian R. Thomas
DOI:10.1021/ol005646a
日期:2000.5.1
see text] Tetrahydropyran rings are found in many complex natural products, and the segment-coupling Prins cyclization is an effective strategy for their synthesis. We report a four-step, stereoselective synthesis of the C20-C27 tetrahydropyran segment of phorboxazole. The key step is a Prins cyclization induced by catalytic BF3.OEt2.
四氢吡喃环存在于许多复杂的天然产物中,链段偶联的Prins环化是合成它们的有效策略。我们报告了四步,佛波唑的C20-C27四氢吡喃段的立体选择性合成。关键步骤是由催化BF3.OEt2诱导的Prins环化。