A stereoselective synthesis of (+/-)-decarestrictine L (1) from protected pentane-1,4-diol (2) is described. The key intermediate, tetrahydropyran-3-one 5a, was obtained by a tandem intramolecular carbenoid insertion and ylide rearrangement reaction.
Stereoselective synthesis of (+)-decarestrictine L using tandem isomerization followed by C–O and C–C bond formation reaction
作者:Shivalal Banoth、Suresh Kanikarapu、Jhillu S. Yadav、Debendra K. Mohapatra
DOI:10.1016/j.tetlet.2016.08.055
日期:2016.9
A stereoselectivesynthesis of the (+)-decarestrictine L has been described following our own developed iodine-catalyzed tandem isomerization followed by C–O and C–C bond formation reaction for the construction of trans-2,6-disubstituted dihydropyran as the key step. Other important reactionsused for this synthesis are 5-exo-trig-iodolactonization, Mitsunobu inversion, and Wacker’s oxidation. The
A concise enantioselective synthesis of the fungal metabolite (+)-decarestrictine L
作者:J. Stephen Clark、Thomas C. Fessard、Gavin A. Whitlock
DOI:10.1016/j.tet.2005.09.144
日期:2006.1
A stereoselective 10-step synthesis of the fungalmetabolite (+)-decarestrictine L from commercially available ethyl (R)-3-hydroxybutyrate is described in which tandem oxonium ylide formation and rearrangement is used to construct the tetrahydropyranyl core of the natural product.