A convergent and rapid synthesis of original C2,C3-unsaturated, C11,C13-keto–enol macrocycles with a peloruside A skeleton has been developed. These original unsaturated macrocycles constitute valuable platforms to access peloruside A analogues with high diversity. The four-fragment strategy implemented features two aldol-type couplings with the central C12–C14 building block TES-diazoacetone and a