A phase separation/continuous flow macrocyclization protocol eliminates the need for high-dilution conditions and can be used to prepare gram quantities of biologically relevant macrocyclic lipid structures. The method presents several green advantages towards macrocycle synthesis: (1) the prevention of unwanted oligomers and waste, (2) a reduction in the large quantities of toxic, volatile organic solvents and (3) the use of PEG as an environmentally benign reaction media. Macrocycles could be synthesized in high yields (up to 99%) in short reaction times (1.5 h) and on gram scales without the need to alter the reaction conditions.
                                    相分离/连续流大环化方案无需高稀释条件,可用于制备克级数量的
生物相关大环脂质结构。该方法在大环合成方面具有多项绿色优势:(1) 避免了不必要的低聚物和废物;(2) 减少了大量有毒、易挥发的有机溶剂;(3) 使用 P
EG 作为对环境无害的反应介质。大环化合物的合成收率高(高达 99%),反应时间短(1.5 小时),以克为单位,无需改变反应条件。