Total synthesis of curvulone B and a proposed structure for dothiorelone B; determination of the configuration of curvulone B and structural revision of phomopsin A
The totalsynthesis of curvulone B was achieved, and its absolute configuration unambiguously established, as had been determined by TD-DFT ECD calculations on the computed solution conformers. Key features of the synthesis were an olefin cross-metathesis of an α,β-unsaturated ketone as a common key building block with (R)-6-triethylsilyloxyhept-1-ene, and an intramolecular oxy-Michael addition of