A Novel Synthetic Method of HMG-CoA Reductase Inhibitor NK-104 via a Hydroboration-Cross-Coupling Sequence.

Abstract The regioselective hydroboration of ethyl (3R, 5S)-3,5-isopropylidenedioxy-6-heptynoate, followed by the cross-coupling reaction with an aryl halide, provides ethyl (3R, 5S, 6E)-7-aryl-3,5-isopropylidenedioxy-6-heptenoate, a precursor of a highly potent HMG-CoA reductase inhibitor NK-104.