作者:Franca M. Cordero、Paola Bonanno、Matteo Chioccioli、Paola Gratteri、Inmaculada Robina、Antonio J. Moreno Vargas、Alberto Brandi
DOI:10.1016/j.tet.2011.10.008
日期:2011.12
synthesis of derivatives of the potent glycosidase inhibitor lentiginosine can be achieved in an efficient and versatile way by two modular approaches on key intermediates. After assembling the indolizidine ring system through 1,3-dipolar cycloaddition of a dihydroxylated pyrroline N-oxide with 4-butenol followed by elaboration of the isoxazolidine moiety, the 7-amino and 7-azido derivatives synthesized
通过在关键中间体上采用两种模块化方法,可以有效且通用的方式实现有效的糖苷酶抑制剂lentiginosine衍生物的多样性导向合成。通过二羟基化的吡咯啉N-氧化物与4-丁烯醇的1,3-偶极环加成,然后精制异恶唑烷部分,组装吲哚并咪唑环系统后,可以通过偶联使合成的7-氨基和7-叠氮基衍生物与官能化链偶联分别在铜催化的惠斯根环加成中与氨基酸或炔烃结合。