A General Asymmetric Synthesis of syn- and anti-β-Substituted Cysteine and Serine Derivatives
- 22 March 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Organic Chemistry
- Vol. 67 (10), 3514-3517
- https://doi.org/10.1021/jo011172x
Abstract
A stereodivergent synthetic route has been developed to make the optically pure anti- and syn-β-substituted cysteine and serine derivatives. In this approach, the key intermediates, >94% enantiomerically pure cyclic sulfates 3 and aziridines 7, were prepared from α,β-unsaturated esters 1, employing the Sharpless asymmetric dihydroxylation. The high regio- and stereoselective ring-opening reactions of cyclic sulfates and aziridines provided enantiomerically pure β-substituted cysteine and serine derivatives.Keywords
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