Macrolactones play a critical role in pharmaceuticals and agrochemicals. Numerous efforts have been devoted to developing synthetic methods for them. We highlighted a recent progress for building macrocycles (≥ 12‐membered) via bench‐stable vinyl ester (VE) intermediates, which have been underdeveloped for half century. These methods are mild and racemization‐free and warrant wide recognition in macrocyclization
A macrolactonization approach to the total synthesis of the antimicrobial cyclic depsipeptide LI-F04a and diastereoisomeric analogues
作者:James R Cochrane、Dong Hee Yoon、Christopher S P McErlean、Katrina A Jolliffe
DOI:10.3762/bjoc.8.154
日期:——
The cyclic peptide core of the antifungal and antibiotic cyclic depsipeptide LI-F04a was synthesised by using a modified Yamaguchi macrolactonizationapproach. Alternative methods of macrolactonization (e.g., Corey-Nicolaou) resulted in significant epimerization of the C-terminal amino acid during the cyclization reaction. The D-stereochemistry of the alanine residue in the naturally occurring cyclic
抗真菌和抗生素环缩肽 LI-F04a 的环肽核心是通过使用改进的 Yamaguchi 大环内酯化方法合成的。大环内酯化的替代方法(例如,Corey-Nicolaou)导致环化反应期间 C 末端氨基酸的显着差向异构化。这种天然产物的抗真菌活性可能需要天然存在的环肽中丙氨酸残基的 D 立体化学。