[Hallucinogenic drugs] now formed a circle, one could almost say a magic circle: the starting point had been the synthesis of lysergic acid amides, a… - Albert Hofmann

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[Hallucinogenic drugs] now formed a circle, one could almost say a magic circle: the starting point had been the synthesis of lysergic acid amides, among them the naturally occurring ergot alkaloid ergobasin. This led to the synthesis of lysergic acid diethylamide, LSD. The hallucinogenic properties of LSD were the reason why the hallucinogenic magic mushroom teonanacatl found its way into my laboratory. THe work with teonanacatl, from which psilocybin and psilocin were isolated, proceeded to the investigation of another Mexican magic drug, ololiuhqui, in which hallucinogenic principles in the form of lysergic acid amides were again encountered, including ergobasin — with which the magic circle closed.