An efficient and stereoselective construction of the C(9)–C(17) dihydropyran segment of swinholides A–C via a novel reductive cleavage of an epoxy aldehyde
作者:Hiroyuki Hayakawa、Masaaki Miyashita
DOI:10.1016/s0040-4039(99)02169-3
日期:2000.1
efficient and highly stereoselective construction of the C(9)–C(17) dihydropyran segment of swinholides A–C, which involves a novel reductive cleavage of an epoxy aldehyde by an organoselenium reagent and the intramolecular conjugate addition of an acetal alkoxide anion of δ-hydroxy-α,β-unsaturated ester as the key steps, is described.
有效和高度立体选择性的结构的swinholides A C的C(9)–C(17)二氢吡喃链段,这涉及有机硒试剂对环氧乙醛的新型还原裂解和分子内共轭加成的乙缩醛烷氧基阴离子描述了作为关键步骤的δ-羟基-α,β-不饱和酯。