Stereoselective Synthesis of an Immunomodulator (+)-Conagenin Using Dirhodium(II)-Catalyzed C-H Amination and Chelation-Controlled Reductions as Key Steps
Stereoselective synthesis of an immunomodulator (+)-conagenin from commercially available optically active methyl 3-hydroxy-2-methylpropanoate was achieved using dirhodium(II)-catalyzed C-H amination and chelation-controlled reductions as key steps.
Stereoselective synthesis of an immunomodulator (+)-conagenin was achieved. Both amine and carboxylic acid moieties were prepared from commercially available optically active methyl 3-hydroxy-2-methylpropanoate using dirhodium(II)-catalyzed C–H amination and chelation-controlled reductions as key steps. In addition, demethyl analogs of conagenin were synthesized using similar procedures.