Research at the Graduate School
The synthesis of therapeutic macrocyclic trisubstituted alkenes faces inefficiency. A potential solution, catalytic macrocyclic ring-closing metathesis, has limitations. This study introduces a new method for creating diverse trisubstituted macrocyclic olefins, overcoming challenges like alkene isomerization. The method's effectiveness is showcased through examples, including altering selectivity in macrolactam formation and synthesizing the cytotoxic natural product dolabelide C.
Fluorine-containing molecules are vital in drug discovery. Current methods can selectively synthesize specific organofluorine compounds, but those with both trifluoromethyl and fluoro-substituted stereogenic carbon centers are rare. This study introduces a catalytic approach to create such compounds, using a polyfluoroallyl boronate and an in situ-formed organozinc complex. This method enables diverse synthesis and reveals unexpected reactivity patterns due to the unique carbon site. The potential impact is highlighted through the preparation of tetrafluoro-monosaccharides, including analogs of the antiviral drug sofosbuvir.