Total synthesis of epothilone D by sixfold ring cleavage of cyclopropanol intermediates
作者:Alaksiej L. Hurski、Oleg G. Kulinkovich
DOI:10.1016/j.tetlet.2010.04.109
日期:2010.7
The ring-opening or ring fragmentation reactions of cyclopropanol intermediates are used in the total synthesis of epothilone D for the creation of trisubstituted double bonds, an ethyl ketone functionality, as well as for the protection of carboxylic and ester groups. Epothilone D is obtained in 1.6% overall yield (24 steps in the longest linear sequence) starting from (R)-methyl 2,3-O-isopropylideneglycerate
Synthesis of epothilone D with the forced application of oxycyclopropane intermediates
作者:A. L. Hurski、O. G. Kulinkovich
DOI:10.1134/s1070428011110029
日期:2011.11
The total synthesis of epothilone D with six-fold application in the intermediate stages of successive cyclopropanation — opening or cleavage of the three-membered ring was performed. These transformations underlie the new stereoselective method developed for coupling fragments C7–C12 and C13–C21 in the target molecule.