Abstract

A concise total synthesis of aetheramide A in an overall yield of 4.7% with a longest linear sequence of 15 steps is described. This synthetic strategy features macrocyclization via an intramolecular trapping of acylketene generated from dioxinone precursor, and stereoselective late-stage methylation of β-ketoamide. Aetheramide B could be synthesized via the ester migration of aetheramide A.

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