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. Author manuscript; available in PMC: 2018 Jul 5.
Published in final edited form as: Tetrahedron Lett. 2017 May 25;58(27):2675–2680. doi: 10.1016/j.tetlet.2017.05.084

Fig. 3.

Fig. 3

The IR and 19F NMR spectra of wollamide B (2). (A) The overlay IR spectra of wollamide B, red refers to the free base form, and blue refers to the TFA salt form; (B) The 19F NMR of the free base form of wollamide B; (C) The 19F NMR of the TFA salt form of wollamide B, showing the 19F signal at −73.47 ppm.