Stereoselective total synthesis of polyrhacitide A
作者:Subhash Ghosh、Ch. Nageswara Rao
DOI:10.1016/j.tetlet.2010.02.059
日期:2010.4
Stereoselectivetotalsynthesis of polyketide lactone isolated from Chinese medicinal ant Polyrhacis lamellidens is described. Ring-closing metathesis followed by stereoselective intramolecular oxa-Michael addition reactions were used to construct the bicyclic lactone moiety in the molecule and l-malic acid was used as a chiral pool material
Studies directed towards the total synthesis of feigrisolide B
作者:G.V.M. Sharma、K. Raman Kumar
DOI:10.1016/j.tetasy.2004.06.023
日期:2004.8
Attempts directed towards the totalsynthesis of feigrisolide B resulted in the synthesis of lactones 1 and 2. The synthesis of 1 and 2 was achieved from d-glucose and l-malic acid, respectively, with a Ti(IV) mediated diastereoselective aldol reaction as the key step. The structures of both 1 and 2 revealed that the structure proposed for feigrisolide B is incorrect.