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. Author manuscript; available in PMC: 2012 Oct 21.
Published in final edited form as: Angew Chem Int Ed Engl. 2011 Aug 30;50(41):9722–9726. doi: 10.1002/anie.201104504

Scheme 1.

Scheme 1

Enantioselective synthesis of epoxide 13. t-BuOOH (2.0 equiv), Ti(Oi-Pr)4 (0.10 equiv), L-DIPT (0.13 equiv), 4Å MS, CH2Cl2, 0 °C, 60 h. DIPT = diisopropyl tartrate, MS = molecular sieves.