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. Author manuscript; available in PMC: 2008 Dec 15.
Published in final edited form as: Bioorg Med Chem Lett. 2007 Oct 12;17(24):6879–6882. doi: 10.1016/j.bmcl.2007.10.015

Figure 2.

Figure 2

(a) COSY correlations of the purified active compound. (b) The partial fragment structure deduced based on 1H NMR, HSQC and COSY spectra. (c) The identified structure of the active compound.