首页> 外文期刊>Journal of mass spectrometry: JMS >New designer drug alpha-pyrrolidinovalerophenone (PVP): studies on its metabolism and toxicological detection in rat urine using gas chromatographic/mass spectrometric techniques
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New designer drug alpha-pyrrolidinovalerophenone (PVP): studies on its metabolism and toxicological detection in rat urine using gas chromatographic/mass spectrometric techniques

机译:新型设计药物α-吡咯烷基戊二酮(PVP):使用气相色谱/质谱技术研究其在大鼠尿液中的代谢和毒理学检测

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摘要

The aim of the present study was to identify the metabolites of the new designer drug alpha-pyrrolidinovalerophenone (PVP) in rat urine using GC/MS techniques. Eleven metabolites of PVP could be identified suggesting the following metabolic steps: hydroxylation of the side chain followed by dehydrogenation to the corresponding ketone; hydroxylation of the 2 ''-position of the pyrrolidine ring followed by dehydrogenation to the corresponding lactam or followed by ring opening to the respective aliphatic aldehyde and further oxidation to the respective carboxylic acid; degradation of the pyrrolidine ring to the corresponding primary amine; and hydroxylation of the phenyl ring, most probably in the 4'-position. The authors' screening procedure for pyrrolidinophenones allowed the detection of PVP metabolites after application of a dose corresponding to a presumed user's dose. In addition, the involvement of nine different human cytochrome P450 (CYP) isoenzymes in the side chain hydroxylation of PVP was investigated and CYP 2B6, 2C19, 2D6, and 3A4 were found to catalyze this reaction.
机译:本研究的目的是使用GC / MS技术在大鼠尿液中鉴定新设计药物α-吡咯烷基戊二酮(PVP)的代谢产物。可以鉴定出11种PVP代谢物,提示以下代谢步骤:侧链羟基化,然后脱氢成相应的酮;吡咯烷环的2'-位的羟基化,然后脱氢成相应的内酰胺,或者开环成相应的脂族醛,然后进一步氧化成相应的羧酸;吡咯烷环降解为相应的伯胺;苯环的羟基化,很可能在4'位。作者对吡咯烷酮的筛选程序允许在应用与假定使用者剂量相对应的剂量后检测PVP代谢产物。此外,调查了9种不同的人类细胞色素P450(CYP)同工酶参与PVP侧链羟基化的过程,发现CYP 2B6、2C19、2D6和3A4可以催化该反应。

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