Identification of five pyrrolidinyl substituted cathinones and the collision‐induced dissociation of electrospray‐generated pyrrolidinyl substituted cathinones

Drug Testing and Analysis - Tập 9 Số 5 - Trang 778-787 - 2017
Zhenhua Qian1, Jia Wang1, Tao Li1, Zhendong Hua1, Cuimei Liu1
1National Narcotics Laboratory, Drug Intelligence and Forensic Center of the Ministry of Public Security, Beijing, China

Tóm tắt

This article reports on the analytical properties of five pyrrolidinyl substituted cathinones: α‐pyrrolidinononaphenone (α‐PNP, 1), 4‐chloro‐α‐pyrrolidinopropiophenone (4‐Cl‐α‐PPP, 2), 4‐chloro‐α‐pyrrolidinovalerophenone (4‐Cl‐α‐PVP, 3), 5‐dihydrobenzofuranpyrovalerone (5‐DBFPV, 4), and 2‐(pyrrolidin‐1‐yl)‐1‐(5,6,7,8‐tetrahydronaphthalen‐2‐yl)hexan‐1‐one (β‐THNPH, 5). These identifications were based on liquid chromatography–quadrupole time‐of‐flight‐mass spectrometry (LC–QTOF–MS), gas chromatography–mass spectrometry (GC–MS) and nuclear magnetic resonance spectroscopy (NMR). To our knowledge, no analytical data about α‐PNP, 4‐Cl‐α‐PPP, 4‐Cl‐α‐PVP, and β‐THNPH have appeared until now, making this the first report on these compounds. Moreover, in order to study the collision‐induced dissociation (CID) characteristic fragmentation routes of pyrrolidinyl substituted cathinones, a total number of 13 pyrrolidinyl substituted cathinones were selected and discussed. The major fragmentation pathways under CID mode are produced, leading to the formation of characteristic ions. Product ions of [M‐C4H9N]+ and CnH2nN+ indicate the presence of pyrrolidinyl substitution. Characteristic fragments are also produced via the cleavages of the CH–N(CH2)4 bond and the CO‐CHN bond. Copyright © 2016 John Wiley & Sons, Ltd.

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Drug Testing and Analysis

Tập 9 Số 5

778-787

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