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Jan G. Bruhn

3 papers in the library · 196 citations · publishing 1978-2008

Papers

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Ecstasy Analogues Found in Cacti

Journal of Psychoactive Drugs June 1, 2008 Jan G. Bruhn, Hesham R. Ei-Seedi, Nikolai Stephanson et al. 11 citations

Human interest in psychoactive phenethylamines is known from the use of mescaline-containing cacti and designer drugs such as Ecstasy. From the alkaloid composition of cacti we hypothesized that substances resembling Ecstasy might occur naturally. In this article we show that lophophine, homopiperonylamine and lobivine are new minor constituents of two cactus species, Lophophora williamsii...

Prehistoric peyote use: alkaloid analysis and radiocarbon dating of archaeological specimens of Lophophora from Texas.

Journal of Ethnopharmacology October 3, 2005 Hesham R. El‐seedi, Peter A. G. M. de Smet, Olof Beck et al. 162 citations

Two archaeological specimens of peyote buttons, i.e. dried tops of the cactus Lophophora williamsii (Lem.) Coulter, from the collection of the Witte Museum in San Antonio, was subjected to radiocarbon dating and alkaloid analysis. The samples were presumably found in Shumla Cave No. 5 on the Rio Grande, Texas. Radiocarbon dating shows that the calibrated 14C age of the weighted mean of the two...

Peyote Alkaloids: Identification in a Prehistoric Specimen of Lophophora from Coahuila, Mexico

Science March 31, 1978 Jan G. Bruhn, J.‐e. Lindgren, Bo Holmstedt et al. 23 citations

Mescaline, anhalonine, lophophorine, pellotine, and anhalonidine have been identified in alkaloid extracts of a prehistoric specimen of Lophophora from a burial cave in west central Coahuila, Mexico. The specimen is associated with radiocarbon dates of A.D. 810 to 1070 and is one of the oldest materials ever submitted to alkaloid analysis.