(often co-authored with Nicolas Richard). It is widely regarded as a German-language counterpart to Alexander Shulgin's Overview of the Book Full Title Psychedelische Chemie: Aspekte psychoaktiver Moleküle
Next, I need to check if there are open-access resources on this topic. There are some books like "Handbook of Recreational Chemistry" or "The Chemistry of Hallucinogenic Drugs" by Ronald K. Siegel, but these might not be freely available. Maybe some university libraries provide access, but the user might not have a subscription. Another angle is looking into academic databases like PubMed or ResearchGate, but again, the documents there would require access, and sharing them without proper authorization is against policies. psychedelische chemie pdf