Stereoselective total synthesis of decarestrictine O
作者:Jhillu S. Yadav、K. Anantha Lakshmi、N. Mallikarjuna Reddy、Nipunge Swapnil、A. Ramachandra Prasad
DOI:10.1016/j.tetasy.2012.06.027
日期:2012.8
The stereoselectivetotalsynthesis of decarestrictine O, a polyketide natural product is described. The synthesis involves MacMillan α-hydroxylation, C1-Wittig olefination, hydrolytic kinetic resolution and ring closing metathesis (RCM) as key steps. Improved efficiency was achieved by using the DIBAL mediated reductive transformation of trans-dimethyl l-tartrate acetonide into ε-hydroxy α,β-unsaturated
Synthesis of Ophiocerins A, B and C, Botryolide E, Decarestrictine O, Stagonolide C and 9-<i>epi</i>-Stagonolide C Employing Chiral Hexane-1,2,3,5-tetraol Derivatives as Building Blocks
作者:Krishanu Show、Pradeep Kumar
DOI:10.1002/ejoc.201600625
日期:2016.9
organocatalytic approach to the synthesis of (2R,3S)-hexane-1,2,3,5-tetraol (11) derivatives (in the forms of different stereoisomers and bearing different protecting groups) has been developed. The key chiral intermediates 11 were prepared with complete stereocontrol through the proline-catalyzed intermolecular aldol reaction between acetone and d-glyceraldehyde acetonide. The synthetic utility of the