PMID- 20338868 OWN - NLM STAT- MEDLINE DCOM- 20100720 LR - 20161205 IS - 1848-6312 (Electronic) IS - 0004-1254 (Linking) VI - 61 IP - 1 DP - 2010 Mar TI - Toxicological methods for tracing drug abuse: chromatographic, spectroscopic and biological characterisation of ecstasy derivatives. PG - 53-9 LID - 10.2478/10004-1254-61-2010-1937 [doi] AB - Analysis often reveals variability in the composition of ecstasy pills from pure 3,4-methylenedioxymethamphetamine (MDMA) to mixtures of MDMA derivatives, amphetamine, and other unidentified substances. For a comprehensive toxicological analysis one needs to know all steps to MDMA synthesis which may originate impurities. The aim of this study was to synthesise and determine the chemical-physical and in vitro biological properties of a series of MDMA derivatives.3,4-methylendioxyphenyl-2-nitropropene (MDNP) was obtained by condensation of piperonal with an excess of nitroethane in the presence of ammonium acetate. MDNP was then reduced to methylenedioxyamphetamine (MDA) by LiAlH3. All compounds were analysed using HPLC and spectroscopic technique [Raman, nuclear magnetic resonance (NMR), or infrared (IR)] at all the steps of synthesis. In addition, we assessed the biological potentials of these compounds by measuring in vitro their (i) blood cell/whole blood partition coefficient, (ii) binding to plasmatic proteins (Fbp), and (iii) membrane adsorption. Chemical structure was determined with antibody fluorescence polarisation immunoassay (FPIA). This study showed the presence of solid impurities, particularly of a neurotoxic compound of Al3+ in the final products. FPIA identified the aminoethane group close to the substituted benzene ring, but did not detect the two major precursors of MDMA: MDNP and piperonal. Raman spectroscopy is an attractive alternative technique to characterise ecstasy pills and it can identify stereoisomeric forms such as cis-MDNP and trans-MDNP, which exhibit signals at 1650 cm-1 and 1300 cm-1, respectively. FAU - Belhadj-Tahar, Hafid AU - Belhadj-Tahar H AD - Centre Anti-Poisons, CHU Purpan, Toulouse, France. belhadj-tahar@afpremed.org FAU - Payoux, Pierre AU - Payoux P FAU - Tafani, Mathieu AU - Tafani M FAU - Coulais, Yvon AU - Coulais Y FAU - Calet, Serge AU - Calet S FAU - Bousseksou, Azzedine AU - Bousseksou A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Croatia TA - Arh Hig Rada Toksikol JT - Arhiv za higijenu rada i toksikologiju JID - 0373100 RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Chromatography, High Pressure Liquid MH - Humans MH - Magnetic Resonance Spectroscopy MH - N-Methyl-3,4-methylenedioxyamphetamine/analogs & derivatives/*analysis/chemical synthesis MH - Spectrophotometry, Infrared MH - Spectrum Analysis, Raman MH - Substance Abuse Detection/*methods EDAT- 2010/03/27 06:00 MHDA- 2010/07/21 06:00 CRDT- 2010/03/27 06:00 PHST- 2010/03/27 06:00 [entrez] PHST- 2010/03/27 06:00 [pubmed] PHST- 2010/07/21 06:00 [medline] AID - 9158884318282414 [pii] AID - 10.2478/10004-1254-61-2010-1937 [doi] PST - ppublish SO - Arh Hig Rada Toksikol. 2010 Mar;61(1):53-9. doi: 10.2478/10004-1254-61-2010-1937.