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. 2014 Dec 21;2014:586270. doi: 10.1155/2014/586270

Figure 2.

Figure 2

Mechanism for the formation of metabolites by oxidative pyrrole ring cleavage of melatonin forming a primary metabolite AFMK. The secondary metabolite AMK has potent radical scavenging properties as compared to AFMK, formed during the oxidation of melatonin by hydroxyl radicals (OH) as a result of pyrrole ring cleavage.