Enantioselective synthesis of optically pure (R)- and (S)-β-lysine via nitrone cycloaddition
作者:David Keirs、David Moffat、Karl Overton
DOI:10.1039/c39880000654
日期:——
Optically pure (R)- and (S)-β-lysines have been obtained via cycloaddition of chiral nitrone (4) to vinyl acetate, followed by facile chromatographic separation of the four resulting acetates (5) into two pairs of C-5 epimers and conversion of each pair into diastereoisomerically pure isoxazolidinone (7a or b).