A simple and general synthetic strategy potentially applicable for the preparation of a wide variety of unsymmetrically N,N'-bis(substituted)-4, 13-diaza-18-crown-6-ether derivatives was reported.
报道了一种简单且通用的合成策略,该策略可能适用于制备各种不对称的N,N'-双(取代)-4,13-二氮杂-18-皇冠-6-醚衍
生物。