Efforts toward the first total synthesis of a mixed‐ligand siderophore: Gobichelin‐A

Abstract

The synthesis of Gobichelin‐A, a naturally occurring mixed‐ligand siderophore isolated from Streptomyces sp. NRRL F‐4415, is described. The target molecule was planned to be synthesized by a convergent process involving the combination of two halves, Gob‐A 1st half and Gob‐A 2nd half, at the prefinal stage of the synthetic route. By adopting this method, fully protected Gobichelin‐A was synthesized in excellent yield.