A convenient, stereodivergent approach to the enantioselective synthesis of N-Boc-aminoalkyl epoxides
作者:Patricia Castejón、Mireia Pastó、Albert Moyano、Miquel A Pericàs、Antoni Riera
DOI:10.1016/0040-4039(95)00415-9
日期:1995.4
An efficient, stereodivergent and enantioselective synthesis of N-Boc-aminoalkyl epoxides has been developed. Starting from enantiomerically enriched antiN-diphenylmethyl-3-amino-1,2-diols, and after a change in the nitrogen protecting group, an intramolecular Mitsunobu reaction leads to the erythro aminoalkyl epoxides; a three step sequence consisting of protection of the primary alcohol, activation
已经开发了N - Boc-氨基烷基环氧化物的有效,立体发散和对映选择性的合成。从对映异构体富集的抗N-二苯基甲基-3-氨基-1,2-二醇开始,并在改变氮保护基团之后,分子内的Mitsunobu反应导致赤型氨基烷基环氧化物;由伯醇的保护,仲醇的活化和同时的脱保护/环化组成的三个步骤序列以良好的产率提供了相应的苏式异构体。