[EN] HETEROARYL COMPOUNDS FOR TREATMENT OF COMPLEMENT FACTOR D MEDIATED DISORDERS [FR] COMPOSÉS HÉTÉROARYLE POUR LE TRAITEMENT DE TROUBLES MÉDIÉS PAR LE FACTEUR D DU COMPLÉMENT
Synthesis of (2S,3R)- and (2S,3S)-[3-2H1]-proline via highly stereoselective hydrolysis of a silyl enol ether
作者:Paul Barraclough、Caroline A. Spray、Douglas W. Young
DOI:10.1016/j.tetlet.2005.04.126
日期:2005.7
A straightforward synthesis of (2S)-[3,3-2H2]-proline 1c and (2S,3R)- and (2S,3S)-[3-2H1]-proline, 1b and 1a, respectively, has been devised. The key step of the route to the latter compounds involves highlystereoselective hydrolysis of the silyl enolethers 3 and 3a, respectively, with protonation (deuteriation) from the re-face of the silyl enolether.
(2 S)-[3,3- 2 H 2 ]-脯氨酸1c和(2 S,3 R)-和(2 S,3 S)-[3- 2 H 1 ]-脯氨酸1b的直接合成已经分别设计了1a和1a。后者化合物的路线的关键的步骤涉及高度立体选择性水解的甲硅烷基烯醇醚3和3a中从分别与质子化(deuteriation)重的甲硅烷基烯醇醚-面。