Novel enantioselective synthesis of trans-α-(2-carboxycycloprop-1-yl)glycines: conformationally constrained l-glutamate analogues
作者:Ayhan S Demir、Cihangir Tanyeli、Ali Cagir、M.Nawaz Tahir、Dincer Ulku
DOI:10.1016/s0957-4166(98)00061-5
日期:1998.3
followed by the formation of an oximeether. Enantioselective reduction of the oximeether, separation of diastereomers and oxidation of the furane rings gave enantiomerically pure d- and l-CCG I and CCG II. The structure of oxime 7b was determined by X-ray crystalstructure analysis. The key step is the oxazaborolidine catalyzed enantioselective conversion of oximeethers to amines.