Synthesis and Characterization of Psilocybin Metabolites and Deuterated Analogs
ACS Chemical Neuroscience – March 03, 2026
Source: OpenAlex
Summary
Psilocin emerged as the standout compound, demonstrating significant binding to seven serotonin receptor subtypes in a study involving multiple metabolites of psilocybin. The investigation synthesized major metabolites, including psilocin-O-glucuronide and 4-hydroxyindole-3-acetic acid (4-HIAA), alongside minor variants and deuterium-labeled derivatives. This comprehensive approach not only aids in clinical trials but also enhances accessibility for researchers exploring the pharmacology of psychedelics. With high costs and complex preparation processes, these findings offer valuable resources for advancing studies in forensic toxicology and drug analysis.
Abstract
To support ongoing clinical trials, the major human metabolites of psilocybin were synthesized on a preparative scale, specifically psilocin-O-glucuronide and 4-hydroxyindole-3-acetic acid (4-HIAA), along with putative minor metabolites and several deuterium-labeled derivatives. Psilocybin, psilocin, psilocin-O-glucuronide, and 4-HIAA were assayed for engagement at seven serotonin receptor subtypes using a BRET-based binding assay, which showed that only psilocin exhibited any discernible binding across the subtypes investigated. Given the high cost and challenging preparation of these compounds, our work offers a comprehensive guide for researchers to access these resources, advancing both basic and clinical research with psilocybin and its metabolites.