作者:Gilles Argouarch、Graham Stones、Colin L. Gibson、Alan R. Kennedy、David C. Sherrington
DOI:10.1039/b310492c
日期:——
Three chiral 2,6-disubstituted tri-N-methyl azamacrocycles have been prepared by modular methods. These macrocycles were accessed from three chiral 1,4,7-triazaheptanes intermediates that were prepared by two independent routes. The first of these routes involved the benzylamine opening of chiral tosyl aziridines followed by debenzylation but was problematic on solubility grounds. A second, more effective, route was developed which avoided debenzylation by using ammonia in the nucleophilic opening of chiral tosyl aziridines.
通过模块化方法合成了三种手性2,6-二取代的三-N-甲基氮杂大环。这些大环是通过两条独立路线合成的三种手性1,4,7-三氮七烷中间体获得的。第一条路线涉及手性磺酰氮杂环丁烷的苄胺开环,随后进行去苄基化,但在溶解性方面存在问题。第二条更有效的路线则采用氨在手性磺酰氮杂环丁烷的亲核开环中,避免了去苄基化。