We have synthesised a novel oxanorbornene β-aminoacid derivative and employed it in a stereoselective Ugi reaction. Hypothesis regarding the mechanism taking place during the reaction have been made and validated through the determination of the relative and absolute configuration of the Ugi adducts. Use of the correct choice of solvents can increase stereoselection. The resulting bicyclic peptidomimetics can be used as a novel class of pluripotent substrates to be elaborated according to the synthetic strategies previously elaborated in our laboratories.
我们合成了一种新型的氧
环戊烯β-
氨基酸衍
生物,并将其应用于立体选择性的Ugi反应。对于反应过程中发生的机制提出了假设,并通过确定Ugi加合物的相对和绝对构型进行了验证。选择合适的溶剂可以提高立体选择性。所得的双环肽模仿物可用作一种新型的多能底物,可以根据我们实验室之前制定的合成策略进行进一步开发。