Studies into the Stereoselectivity of Tartrate-Derived Dienophiles
摘要:
Diels-Alder reactions of 1-(tert-butyidimethylsiloxy)-1,3-butadiene (3) with three C2 symmetric dienophiles derived from tartaric acid have been examined. Complementary diastereoselectivity is observed depending on the nature of the 1,2-diol protecting group incorporated in these dienophiles.
作者:Christoph Gaul、Jon T. Njardarson、Samuel J. Danishefsky
DOI:10.1021/ja0349103
日期:2003.5.1
The first totalsynthesis of (+)-migrastatin, a macrolide natural product with interesting antimetastatic properties, has been accomplished. Our concise and flexible approach utilizes a Lewis acid-catalyzed diene aldehyde condensation to install the three contiguous stereocenters and the trisubstituted (Z)-alkene of migrastatin. Construction of the two remaining stereocenters and incorporation of the
INKT CELL MODULATORS AND METHODS OF USING THE SAME
申请人:The Chancellor, Masters & Scholars of the University of Oxford
公开号:US20150010496A1
公开(公告)日:2015-01-08
Disclosed herein are α-galactosylceramide (α-GalCer) analogs and compositions thereof, methods of activating invariant Natural Killer T (iNKT) cells using said analogs, methods of treating diseases by activating iNKT cells using said analogs, and combination therapy of said analogs.
iNKT cell modulators and methods of using the same
申请人:LUDWIG INSTITUTE FOR CANCER RESEARCH
公开号:US10314796B2
公开(公告)日:2019-06-11
Disclosed herein are α-galactosylceramide (α-GalCer) analogs and compositions thereof, methods of activating invariant Natural Killer T (iNKT) cells using said analogs, methods of treating diseases by activating iNKT cells using said analogs, and combination therapy of said analogs.
The lack of<i>C</i>2 molecular symmetry in (1<i>R</i>,2<i>R</i>,3<i>S</i>,6<i>S</i>)-3,6-dibenzyloxycyclohex-4-ene-1,2-diol
作者:Robert W. Clark、Ilia A. Guzei、Sergei A. Ivanov、Steven D. Burke、William T. Lambert
DOI:10.1107/s0108270101006199
日期:2001.7.15
The results of a single-crystal X-ray experiment and density functional theory calculations performed for the title compound, C20H22O4, demonstrate that the lowest energy conformation of this molecule does not contain C2 molecular symmetry.