Approaches toward the enantioselective total synthesis of amarogentic
Three different, but complementary strategies for the enantioselective synthesis of the secoiridoid core of amarogentin were evaluated. The first is based on the enantioselective desymmetrisation of meso-anhydrides using titanium TADDOLates. 1,2,4,6-Tetrahydrophthalic anhydride was desymmetrised and chemoselectively reduced to give (3aR, 7aS)-3a,4,7,7a-Tetrahydro-3H-isobenzofuran-1-one. Further development of this route was performed on a racemic model.
Networked Digital Library of Theses and Dissertations