The heterogeneous catalytic hydrogenation of Δ1 -dehydrotripeptides (Δ1 -DHP), which have a β-turn structure, was carried out to give the corresponding tripeptides indicative of the very large diastereomeric excess, comparing with those from Δ2- and Δ3 -DHPs. The efficient differences of the chiral inductions were found to be closely correlated to the configuration of the respective DHPs.
对具有β转角结构的Δ1-脱氢三肽(Δ1-
DHP)进行了非均相催化氢化,得到相应的三肽,其示踪显示出非常大的消旋过量,与Δ2-和Δ3-
DHP得到的产物相比。发现手性诱导的有效差异与各自
DHP的构型密切相关。