Abstract
Scalable total syntheses of Bistratamides H and J with remarkable yields of 22.9 % and 24.2 % over 9 steps, respectively, have been accomplished. The key step features a PPh3-promoted cascade reaction (disulfide cleavage/thiocarbonylation/intramolecular Staudinger-aza-Wittig reaction/dehydrogenation) to construct the key Boc-l-Val-thiazole fragment, DAST-promoted oxazoline synthesis, and a PyBOP-assisted macrolactamization.
Published Version
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