Identification of a synthetic cannabinoid A-836339 as a novel compound found in a product
As a part of the work conducted in our laboratory, we encountered a case in which new chemical compound was contained in a certain product. This compound was found to have a molecular weight of 310 Da by liquid chromatography–mass spectrometry and gas chromatography–mass spectrometry. Accurate mass spectrometry measurements showed that the compound had an elemental composition of C16H26N2O2S. Using these mass data together with those obtained by nuclear magnetic resonance analysis and X-ray crystallographic analysis, this compound was identified as N-[3-(2-methoxyethyl)-4,5-dimethyl-2(3H)-thiazolylidene]-2,2,3,3-tetramethylcyclopropanecarboxamide, which was reported in 2009 and named A-836339. It was described as a thiazol derivative and a selective agonist of G-protein-coupled cannabinoid receptor CB2. This is the first report to identify this compound in a dubious product.
KeywordsA-836339 Synthetic cannabinoid X-Ray crystallographic analysis TOF–MS NMR
This work was supported in part by a research budget of the Tokyo Metropolitan Government, Japan.
Conflict of interest
These are no financial or other relations that could lead to a conflict of interest.
- 1.EMCDDA (2013) “EMCDDA-Europol 2012 annual report on the implementation of council decision 2005/387/JHA”. EMCDDA/Europol, Lisbon http://www.emcdda.europa.eu/publications/implementation-reports/2012. Accessed May 2013
- 4.Uchiyama N, Kawamura M, Kikura-Hanajiri R, Goda Y (2010) Identification and quantitation of two cannabimimetic phenylacetylindoles JWH-251 and JWH-250, and four cannabimimetic naphthoylindoles JWH-081, JWH-015, JWH-200, and JWH-073 as designer drugs in illegal products. Forensic Toxicol 29:25–37CrossRefGoogle Scholar
- 6.Nakajima J, Takahashi M, Seto T, Kanai C, Suzuki J, Yoshida M, Hamano T (2011) Identification and quantitation of two benzoylindoles AM-694 and (4-methoxyphenyl)(1-pentyl-1H-indol-3-yl)methanone, and three cannabimimetic naphthoylindoles JWH-210, JWH-122, and JWH-019 as adulterants in illegal products obtained via the Internet. Forensic Toxicol 29:95–110CrossRefGoogle Scholar
- 7.Nakajima J, Takahashi M, Nonaka R, Seto T, Suzuki J, Yoshida M, Kanai C, Hamano T (2011) Identification and quantitation of a benzoylindole (2-methoxyphenyl)(1-pentyl-1H-indol-3-yl)methanone and a naphthoylindole 1-(5-fluoropentyl-1H-indol-3-yl)-(naphthalene-1-yl)methanone (AM-2201) found in illegal products obtained via the Internet and their cannabimimetic effects evaluated by in vitro [35S]GTPγS binding assays. Forensic Toxicol 29:132–141CrossRefGoogle Scholar
- 8.Nakajima J, Takahashi M, Seto T, Yoshida M, Kanai C, Suzuki J, Hamano T (2012) Identification and quantitation of two new naphthoylindole drugs-of-abuse, (1-(5-hydroxypentyl)-1H-indol-3-yl)(naphthalen-1-yl)methanone (AM-2202) and (1-(4-pentenyl)-1H-indol-3-yl)(naphthalen-1-yl)methanone, with other synthetic cannabinoids in unregulated “herbal” products circulated in the Tokyo area. Forensic Toxicol 30:33–44CrossRefGoogle Scholar
- 9.Uchiyama N, Kawamura M, Kikura-Hanajiri R, Goda Y (2012) Identification of two new-type synthetic cannabinoids, N-(1-adamantyl)-1-pentyl-1H-indole-3-carboxamide (APICA) and N-(1-adamantyl)-1-pentyl-1H-indazole-3-carboxamide (APINACA), and detection of five synthetic cannabinoids, AM-1220, AM-2233. AM-1241, CB-13 (CRA-13), and AM-1248, as designer drugs in illegal products. Forensic Toxicol 30:114–125CrossRefGoogle Scholar
- 12.Nakajima J, Takahashi M, Seto T, Kanai C, Suzuki J, Yoshida M, Uemura N, Hamano T (2013) Analysis of azepane isomers of AM-2233 and AM-1220, and detection of an inhibitor of fatty acid amide hydrolase [3′-(aminocarbonyl)(1,1′-biphenyl)-3-yl]-cyclohexylcarbamate (URB597) obtained as designer drugs in the Tokyo area. Forensic Toxicol 31:76–85CrossRefGoogle Scholar
- 13.Uchiyama N, Matsuda S, Wakana D, Kikura-Hanajiri R, Goda Y (2013) New cannabimimetic indazole derivatives, N-(1-amino-3-methyl-1-oxobutan-2-yl)-1-pentyl-1H-indazole-3-carboxamide (AB-PINACA) and N-(1-amino-3-methyl-1-oxobutan-2-yl)-1-(4-fluorobenzyl)-1H-indazole-3-carboxamide (AB-FUBINACA) identified as designer drugs in illegal products. Forensic Toxicol 31:93–100CrossRefGoogle Scholar
- 14.Uchiyama N, Matsuda S, Kawamura M, Kikura-Hanajiri R, Goda Y (2013) Two new-type cannabimimetic quinolinyl carboxylates, QUPIC and QUCHIC, two new cannabimimetic carboxamide derivatives, ADB-FUBINACA and ADBICA, and five synthetic cannabinoids detected with a thiophene derivative α-PVT and an opioid receptor agonist AH-7921 identified in illegal products. Forensic Toxicol 31:223–240CrossRefGoogle Scholar
- 15.Bruker Daltonics (2008) Bruker suite. Bruker AXS Inc., MadisonGoogle Scholar
- 16.Sheldrick GM (2008) SADABS—Bruker AXS area detector scaling and absorption, version 2008/1. University of Göttingen, GöttingenGoogle Scholar
- 17.Sheldrick GM (1997) SHELXS-97, program for crystal structure solution. University of Göttingen, GöttingenGoogle Scholar
- 18.Sheldrick GM (1997) SHELXL-97, program for crystal structure refinement. University of Göttingen, GöttingenGoogle Scholar
- 19.Choi H, Heo S, Kim E, Hwang BY, Lee C, Lee J (2013) Identification of (1-pentylindol-3-yl)-(2,2,3,3-tetramethylcyclopropyl)methanone and its 5-pentyl fluorinated analog in herbal incense seized for drug trafficking. Forensic Toxicol 31:86–92Google Scholar
- 22.Yao BB, Hsieh G, Daza AV, Fan Y, Grayson GK, Garrison TR, El Kouhen O, Hooker BA, Pai M, Wensink EJ, Salyers AK, Chandran P, Zhu CZ, Zhong C, Ryther K, Gallagher ME, Chin C-L, Tovcimak AE, Hradil VP, Fox GB, Dart MJ, Honore P, Meyer MD (2009) Characterization of a cannabinoid CB2 receptor-selective agonist, A-836339 [2,2,3,3-tetramethylcyclopropanecarboxylic acid [3-(2-methoxy-ethyl)-4,5-dimethyl-3H-thiazol-(2Z)-ylidene]-amide], using in vitro pharmacological assays, in vivo pain models, and pharmacological magnetic resonance imaging. J Pharmacol Exp Ther 328:141–151PubMedCrossRefGoogle Scholar