Saved By the Mechanism!!!!!
Designed by Rachel Franzblau, Ben Ellman, and Nick Schuelke
Wang, Z.-G.; Warren, J. D.; Vadim, Y. D.; Xufang, Z.; Iserloh, U.; Visser, M.; Eckhardt, M.; Seeberger, P. H.; Danishefsky, S. J. Tetrahedron 2006, 62, 4954-4978.