Efficient synthesis and reaction pathway studies of novel fused morpholine oxadiazolines for use as gamma secretase modulators
作者:Xianhai Huang、Dmitri Pissarnitski、Hongmei Li、Theodros Asberom、Hubert Josien、Xiaohong Zhu、Monica Vicarel、Zhiqiang Zhao、Murali Rajagopalan、Anandan Palani、Robert Aslanian、Zhaoning Zhu、William Greenlee、Alexei Buevich
DOI:10.1016/j.tetlet.2012.09.070
日期:2012.11
An efficient synthesis of fused morpholine oxadiazoline core structures was accomplished in an effort to identify optimum gamma secretase modulator leads in the treatment of Alzheimer’s disease. Reaction pathways were proposed for the key intramolecular cyclization reaction, and chemistry was designed to probe these hypotheses. A highly diastereoselective synthesis of potent GSM 27 was achieved. To
有效合成融合的吗啉恶二唑啉核心结构的努力是为了确定治疗阿尔茨海默氏病的最佳γ分泌酶调节剂。提出了关键分子内环化反应的反应途径,并设计了化学方法以探究这些假设。实现了强大的GSM 27的高度非对映选择性合成。为了进一步改善合成,开发了第二种方法,该方法成功解决了稠合的七元环副产物的形成,并为加速未来的SAR研究提供了机会。