Diastereoselective isothiourea iodocyclization for manzacidin synthesis
作者:Jacqueline C.S. Woo、D.Bruce MacKay
DOI:10.1016/s0040-4039(03)00431-3
日期:2003.3
We have devised a novel strategy for the total synthesis of the manzacidins. Our approach utilizes an isothiourea iodocyclization strategy to directly form the heterocyclic core, and in the process induce stereoselectivity at the quaternary center. We have found that cyclization can be achieved using an isothiourea as the nucleophilic partner. Cyclization proceeds smoothly using IBr at low temperature