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. Author manuscript; available in PMC: 2014 Mar 13.
Published in final edited form as: J Am Chem Soc. 2013 Mar 4;135(10):3752–3755. doi: 10.1021/ja311579s

Figure 1.

Figure 1

The products of the san gene cluster A-74528 (1) and FDM A (2). The C9 and C14 positions on both molecules are labeled to highlight the extent of similarity in cyclization pattern between the two.