7-Acetoxymitragynine
7-Acetoxymitragynine is an opioid drug which is a semi-synthetic derivative of 7-hydroxymitragynine, a natural product derived from the South-East Asian tree known as kratom. It can be derived by acetylation of the hydroxyl group of 7-hydroxymitragynine, for instance with acetic anhydride, but can also be produced directly from mitragynine by reaction with Lead(IV) acetate.