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. 2008 Oct 23;3(10):e3508. doi: 10.1371/journal.pone.0003508

Figure 10. Keto-Enol Tautomeric forms of curcumin and transition-state of glutathione (GSH) and methylglyoxal (MGO).

Figure 10

(A) (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione. (B) (1E,4Z,6E)-5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,4,6-triene-3-one. (C) Transition-state compound of reaction between GSH and MGO.