ethyl l-malate. The two tetrahydropyranyl fragments were prepared stereoselectively via radical cyclization reactions of β-alkoxyacrylates. The full structure of natural lasonolide A was determined unequivocally.
Total synthesis of the unnatural (−)-enantiomer of lasonolide A was achieved starting from ethyl l-malate. The two tetrahydropyranyl fragments were prepared stereoselectively via radical cyclization reactions of β-alkoxyacrylates. The full structure of natural lasonolide A was determined unequivocally.