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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: J Biol Inorg Chem. 2015 Jan 13;20(2):373–383. doi: 10.1007/s00775-014-1228-0

Fig. 14.

Fig. 14

Pyran cyclization yields two diastereomers, depending on the orientation of hydroxyl oxygen atom attack at C7. Note the H atom of the –OH is not shown for clarity.