Enantio- and Diastereoselective Total Synthesis of EI-1941−1, −2, and −3, Inhibitors of Interleukin-1β Converting Enzyme, and Biological Properties of Their Derivatives
The first asymmetric totalsynthesis of EI-1941−1, −2, and −3, inhibitors of the interleukin-1β converting enzyme (ICE), has been accomplished, starting from a chiral epoxy iodoquinone 11, a key intermediate in our totalsynthesis of epoxyquinols A and B. Despite a failure to synthesize the inhibitors by our postulated biosynthetic route, we were able to diastereoselectively synthesize them via an