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. Author manuscript; available in PMC: 2013 Oct 12.
Published in final edited form as: Nat Prod Rep. 2012 Jun 25;29(10):1099–1110. doi: 10.1039/c2np20023f

Fig. 11.

Fig. 11

Saframycin biosynthetic pathway. The reductase (R) domain catalyzes three reductive eliminations while the condensation domain performs two Pictet-Spengler reactions. R=C13H27.