1-arylthio-1-nitroalkenes, followed by intramolecular capture involving the amino and hydroxyl protecting groups, has led to the formation of isomeric oxazolidinones 5 and 7, and a cyclic carbonate 11. Together with the oxazolidinone precursor anti-alpha-bromo thioester 15a, the absolute and relative stereochemistry of these compounds has been determined by X-ray crystallography.
受保护的3-
氨基和3-羟基取代的1-芳
硫基-1-硝基烯烃的立体选择性亲核环氧化,然后进行涉及
氨基和羟基保护基的分子内捕获,导致形成
恶唑烷酮5和7异构体,以及环状
碳酸酯11.与
恶唑烷酮前体抗α-
溴硫代酯15a一起,已经通过X射线晶体学测定了这些化合物的绝对和相对立体
化学。