Novel Tandem Reaction for the Synthesis of N′-Substituted 2-Imino-1,3-oxazolidines from Vicinal (sec- or tert-)Amino Alcohol of Desosamine
作者:Ines Vujasinović、Zorica Marušić Ištuk、Samra Kapić、Mirjana Bukvić Krajačić、Antun Hutinec、Ivica Đilović、Dubravka Matković-Čalogović、Goran Kragol
DOI:10.1002/ejoc.201001707
日期:2011.5
2-imino-1, 3-oxazolidine structures. The yields of both one-pot methods are comparable to the yield of the sequential reaction. A small library of a new class of desosamine-modified 14- and 15-membered macrolides was prepared to demonstrate the variety of substituents that can be easily introduced and thus enable a huge variation of the physicochemical and hence biological properties of these new molecules
两种一锅法,顺序和串联,用于从脱糖胺的连位(仲或叔)-氨基醇通过中间烷基-、芳基-、杂芳基制备 N'-取代的 2-亚氨基-1, 3-恶唑烷-,和杂烷基硫脲部分被描述。特别有趣的是连位叔氨基醇的新型一锅串联反应,包括脱烷基化、硫脲形成和最终环化以产生 2-亚氨基-1, 3-恶唑烷结构。两种一锅法的产率与顺序反应的产率相当。制备了一类新的脱糖胺修饰的 14 元和 15 元大环内酯类的小型文库,以证明可以轻松引入的各种取代基,从而使这些新分子的物理化学和生物学特性发生巨大变化。