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Characterization of Three Novel 4-Methylaminorex Derivatives Applied as Designer Drugs.


ABSTRACT: The ongoing development of more and more new psychoactive substances continues to be a huge problem in 2022 affecting the European and international drug market. Through slight alterations in the structure of illicit drugs, a way to circumvent the law is created, as the created derivatives serve as legal alternatives with similar effects. A common way of structure modification is the induction of a halogen residue. Recently, halogenated derivatives of the well-known designer drug 4-methylaminorex appeared on the market and are available in various online shops. In this study, three novel halogenated 4-methylaminorex derivatives, namely 4'-fluoro-4-methylaminorex, 4'-chloro-4-methylaminorex, and 4'-bromo-4-methylaminorex, were purchased online and characterized using nuclear magnetic resonance (NMR) spectroscopy, liquid chromatography-high-resolution mass spectrometry (LC-HRMS), and chiral high-performance liquid chromatography with ultraviolet detection (HPLC-UV). These derivatives possess two stereogenic centers, and analyses revealed that all of them were present as a racemic mixture of the trans diastereomeric form.

SUBMITTER: Seibert E 

PROVIDER: S-EPMC9503756 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Characterization of Three Novel 4-Methylaminorex Derivatives Applied as Designer Drugs.

Seibert Elisabeth E   Kunert Olaf O   Pferschy-Wenzig Eva-Maria EM   Schmid Martin G MG  

Molecules (Basel, Switzerland) 20220906 18


The ongoing development of more and more new psychoactive substances continues to be a huge problem in 2022 affecting the European and international drug market. Through slight alterations in the structure of illicit drugs, a way to circumvent the law is created, as the created derivatives serve as legal alternatives with similar effects. A common way of structure modification is the induction of a halogen residue. Recently, halogenated derivatives of the well-known designer drug 4-methylaminore  ...[more]

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