Characterisation of 1,4-benzothiazine intermediates in the oxidative conversion of 5-S-Cysteinyldopa (cas 19641-92-0) to pheomelanins
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Add time:09/04/2019 Source:sciencedirect.com
Under biologically relevant conditions, oxidation of 5-S-cysteinyldopa (1) to pheomelanins proceeds through the formation of the 1,4-benzothiazine 7 along with the 3-carboxy analogue 6 in much smaller amounts, as evidenced by isolation of the reduced forms 5 and 4 and by deuterium labelling experiments.
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