The synthesis of (4R-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate, a key intermediate for the preparation of CI-981, a highly potent, tissue selective inhibitor of HMG-CoA reductase

Abstract Three alternative methods for the synthesis of the optically active heptanoate ( 6 ), a key intermediate in the preparation of a highly potent and tissue selective HMG Co-A reductase inhibitor are described.

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