Abstract

High ee values (up to 94–96% ee) and moderate isolated yields (48–50%) were achieved in the preparation of Sulindac alkyl esters. These molecules are simple and straightforward precursors of Sulindac, an anti-inflammatory drug that has also been recently investigated in anti-cancer therapy. The key step of the overall procedure was the enantioselective hydroperoxide oxidation of the Sulindac sulfide alkyl esters in the presence of chiral complexes of titanium with either ( S, S)- or ( R, R)-hydrobenzoin. Various reaction conditions were investigated in order to obtain the best balance between yield and enantioselectivity.

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