Total Synthesis of (−)-Okilactomycin

Abstract
A highly convergent synthesis of (−)-okilactomycin is described. Key reactions of this synthesis include a strategy-level diastereoselective oxy-Cope rearrangement/oxidation sequence, a Petasis−Ferrier union/rearrangement tactic, and an efficient RCM reaction to construct the 13-membered macrocyclic ring.