Total Solid-Phase Synthesis of Dehydroxy Fengycin Derivatives

J Org Chem. 2018 Dec 21;83(24):15297-15311. doi: 10.1021/acs.joc.8b02553. Epub 2018 Dec 10.

Abstract

A rapid and efficient solid-phase strategy for the synthesis of dehydroxy fengycins derivatives is described. This synthetic approach involved the linkage of a Tyr to a Wang resin via a Mitsunobu reaction and the elongation of the peptide sequence followed by subsequent acylation of the N-terminus of the resulting linear peptidyl resin, esterification of the phenol group of a Tyr with an Ile, and final macrolactamization. The amino acid composition as well as the presence of the N-terminal acyl group significantly influenced the stability of the macrolactone. Cyclic lipodepsipeptides with a l-Tyr3/d-Tyr9 configuration were more stable than those containing the Tyr residues with an opposite configuration. This work constitutes the first approach on the total solid-phase synthesis of dehydroxy fengycin derivatives.

Publication types

  • Research Support, Non-U.S. Gov't