Abstract
The first total syntheses of (±)-montanin A and (±)- teuscorolide have been achieved from an advanced precursor previously developed via a Diels-Alder strategy; in the synthetic sequence, the synthesis of montanin A was first accomplished in 8 steps, from which teuscorolide was readily achieved in 2 steps by using a novel furan oxidative cyclization-retro- cyclization process as a key operation. © The Royal Society of Chemistry.