作者:Jessica Kloeckner、Jens Schmitz、Ulrike Holzgrabe
DOI:10.1016/j.tetlet.2010.04.130
日期:2010.7
acetylcholine receptors, was limited because the synthesis of its precursor, the iperoxo base, was characterized by low yields, laborious chromatography and low reproducibility. Here we report a robust convergent three-step synthesis by means of a Mannich reaction and nucleophilic substitution at the 3-nitro-Δ2-isoxazoline. The new route combines short reaction time, high reproducibility and an overall yield
迄今为止,毒蕈碱乙酰胆碱受体的重要超激动剂peroxrox的可用性受到限制,因为其前体peroxrox碱的合成具有收率低,色谱法费力和重复性低的特点。在这里,我们通过曼尼希反应和亲核取代在3-硝基- Δ的装置报告一个健壮收敛三步合成2 -isoxazoline。新路线结合了较短的反应时间,较高的重现性以及总产率从12%提高至42%。