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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Neuropharmacology. 2015 Sep 11;101:46–56. doi: 10.1016/j.neuropharm.2015.09.012

Figure 1. Chemical structures of EDDP and EMDP.

Figure 1

Note that the structural difference between the two compounds is a single methyl group and the charge on the associated quaternary nitrogen.