Dimethocaine, a synthetic cocaine analogue: studies on its in-vivo metabolism and its detectability in urine by means of a rat model and liquid chromatography–linear ion-trap (high-resolution) mass spectrometry
Dimethocaine, a synthetic cocaine analogue: studies on its in-vivo metabolism and its detectability in urine by means of a rat model and liquid chromatography–linear ion-trap (high-resolution) mass spectrometry
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聚美多卡因,一种合成可卡因类似物:通过大鼠模型和液相色谱-线性离子阱(高分辨率)质谱法研究其体内代谢及其在尿液中的可检测性
DOI:
10.1007/s00216-013-7539-0
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发表时间:
2014
影响因子:
4.3
通讯作者:
Maurer HH
中科院分区:
文献类型:
--
作者:
Meyer MR;Lindauer C;Welter J;Maurer HH
Dimethocaine (DMC, larocaine), a synthetic derivative of cocaine, is a widely distributed “legal high” consumed as a “new psychoactive substance” (NPS) without any safety testing, for example studies of metabolism. Therefore, the purpose of this work was to study its in-vivo and in-vitro metabolism by use of liquid chromatography–(high resolution) mass spectrometry (LC–HRMSn). DMC was administered to male Wistar rats (20 mg kg−1) and their urine was extracted either by solid-phase extraction after enzymatic cleavage of conjugates or by use of protein precipitation (PP). The metabolites were separated and identified by LC–HRMSn. The main phase I reactions were ester hydrolysis, deethylation, hydroxylation of the aromatic system, and a combination of these. The main phase II reaction wasN-acetylation of thep-aminobenzoic acid part of the unchanged parent compound and of several phase I metabolites. The metabolites identified were then used for identification of DMC in rat urine after application of a common user’s dose. By use of GC–MS and LC–MSnstandard urine-screening approaches (SUSAs), DMC and its metabolites could be detected in the urine samples.
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影响因子:
4.3
作者:
Ewald, Andreas H.;Ehlers, Dorothea;Maurer, Hans H.
通讯作者:
Maurer, Hans H.
影响因子:
2.3
作者:
Meyer, Markus R.;Vollmar, Christian;Maurer, Hans H.
通讯作者:
Maurer, Hans H.
DOI:
10.1124/dmd.32.2.178
发表时间:
2004
期刊:
Drug metabolism and disposition: the biological fate of chemicals
影响因子:
--
作者:
Randall R. Miller;G. Doss;R. Stearns
通讯作者:
R. Stearns
影响因子:
4.3
作者:
Wissenbach, Dirk K.;Meyer, Markus R.;Maurer, Hans H.
通讯作者:
Maurer, Hans H.
影响因子:
5
作者:
Woodward,JJ;Compton,DM;Balster,RL;Martin,BR
通讯作者:
Martin,BR