@Article{IPB-1901, author = {Schneider, A. and Rodrigues, O. E. and Paixão, M. W. and Appelt, H. R. and Braga, A. L. and Wessjohann, L. A.}, title = {{Stereoselective synthesis of Boc-protected L-seleno- and tellurolanthionine, L-seleno- and tellurocystine and derivatives}}, year = {2006}, pages = {1019-1021}, journal = {Tetrahedron Lett.}, doi = {10.1016/j.tetlet.2005.11.101}, volume = {47}, abstract = {Optically active seleno- and telluro amino acids can be synthesized from serine via its β-lactone with selenides and tellurides under overall retention of the serine stereochemistry. Boc-protected l-selenolanthionine, l-tellurolanthionine, l-selenocystine, l-tellurocystine and l-tellurocysteine derivatives can be obtained in good yields.} }