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. Author manuscript; available in PMC: 2016 Mar 24.
Published in final edited form as: Nature. 2015 Sep 16;525(7570):507–510. doi: 10.1038/nature14902

Figure 4. Coupling of 17 and 27 and completion of the synthesis of (+)-batzelladine B (1).

Figure 4

Reagents and conditions: 1. EDC•HCl, DMAP, CH2Cl2, 24 °C, 77%. 2. TFA, Pd/C, argon, 0 °C, then H2, 24 °C, 45% (NMR), 40% (isolated).