Abstract The psychotropically active principles of the Mexican hallucinogenic fungus Psilocybe maxicana H EIM have been isolated and obtained in crystalline form. The two new substances, which have been called psilocybin and psilocin , are present in the fruit bodies, the artificially cultivated mycelium and in the sclerotia. The dried mushroom contains 0.2 to 0.4 per cent psilocybin. Psilocin...
Abstract Various modifications were made in the molecular structure of the natural psychotropic substances psilocybin (I) and psilocin (11) to obtain an insight into the relationship between structure and psychotropic action of this group of substances. A description is given of the synthesis and properties of the position isomers of I and II with a phosphoryloxy or hydroxy group in position 5,...