作者:Valérie Druais、Michael J. Hall、Camilla Corsi、Sebastian V. Wendeborn、Christophe Meyer、Janine Cossy
DOI:10.1016/j.tet.2010.05.050
日期:2010.8
reported. A formal synthesis of phoslactomycin B was achieved in which the key steps are a [2,3]-Wittig rearrangement to control the C4 and C5 stereocenters, a diastereoselective addition of an acetylenic Grignard reagent to an α-alkoxy ketone to create the C8 tertiary alcohol, and a relay ring-closing metathesis to construct the α,β-unsaturated δ-lactone. In this approach, all the stereocenters originate
据报道,合成研究致力于开发一种趋向于趋光的方法,即磷脂酰丝氨酸/苏氨酸磷酸酶2A抑制剂系列的磷脂酰肌氨酸和亮氨酸。正式完成了磷脂酰菌素B的合成,其中的关键步骤是[2,3] -Wittig重排以控制C4和C5立体中心,将非对映选择性的炔属格氏试剂添加到α-烷氧基酮上以生成C8三级醇,并通过一个闭环复分解反应来构建α,β-不饱和δ-内酯。在这种方法中,所有的立体中心直接或间接地源自炔酮的催化对映选择性还原。