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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Angew Chem Int Ed Engl. 2009;48(31):5648–5652. doi: 10.1002/anie.200902029

Figure 1.

Figure 1

Originally assigned structures of vannusals A (1) and B (2), final targeted stereoisomer 3 [C10-epi-2], and revised structure 4. BOM = benzyloxymethyl; SEM = trimethylsilylethoxymethyl; TIPS = triisopropylsilyl.