Synthesis of 4-haloserotonin derivatives and synthesis of the toad alkaloid Dehydrobufotenine (cas 17232-69-8)

Add time:08/18/2019    Source:sciencedirect.com

4-Chloro-, 4-bromo- and 4-iodoserotonin derivatives were synthesized from 4-halo-5-oxyindoles, themselves derived from coumarins. Synthesis of the 4-iodoserotonins involved conjugate addition of an allyl group to a 5-iodocoumarin, followed by conversion of the allyl group into an aminoethyl unit. One of the iodoserotonin derivatives was converted into the toad alkaloid dehydrobufotenine, which was isolated as its hydroiodide.

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