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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Pharmacol Biochem Behav. 2011 Aug 22;100(1):174–179. doi: 10.1016/j.pbb.2011.08.013

Figure 1.

Figure 1

A. Parthenolide, related sesquiterpenes and cocaine. Redrawn from Pagán et al. (2008) Pharmacology, Biochemistry and Behavior 89(2):160–170. Copyright, Elsevier. B. Compounds discussed in this work. The γ-dodecalactone and parthenolide’s carbon atoms are numbered for comparison purposes (see text).