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. 2016 Sep 20;17(9):1576. doi: 10.3390/ijms17091576

Figure 26.

Figure 26

Oxidative dimerization of 1,2-dehydro-N-acetyldopa methyl ester. Oxidation of 1,2-Dehydro-N-acetyldopa methyl ester by tyrosinase results in the production of conventional quinone product and not the quinone methide analog. This quinone also dimerizes and produces the same benzodioxan type adduct as that produced by dehydro NADA but by an ionic Diels–Alder type reaction.