mitragyna speciosa
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Mitragynine pseudoindoxyl synthesis
Introduction Mitragynine (1) is a major alkaloidal component in the Thai traditional medicinal herb, Mitragyna speciosa, and has been proven to exhibit analgesic activity mediated by opioid receptors. The oxidative derivatives of mitragynine, i.e., mitragynine pseudoindoxyl (4) and...