4F-PBP (4′-fluoro-α-pyrrolidinobutyrophenone), a new substance of abuse: Structural characterization and purity NMR profiling. (July 2015)

• Record Type: Journal Article
• Authors: Gaspar, Helena; Bronze, Soraia; Ciríaco, Sara; Queirós, Cláudio Rafael; Matias, Ana; Rodrigues, João; Oliveira, Cristina; Cordeiro, Carlos; Santos, Susana
• Is Part Of: Forensic science international. Volume 252(2015)
• Page Start: 168
• Page End: 176
• Publication Date: 2015-07
• Subjects: Designer drugs -- Cathinones -- Pyrolidinophenone -- 4F-PBP -- Fluoropyrolidinobutyrophenone -- Quantification -- NMR; Medical jurisprudence -- Periodicals; Chemistry, Forensic -- Periodicals; Forensic Medicine -- Periodicals; Médecine légale -- Périodiques; Chimie légale -- Périodiques; Gerechtelijke geneeskunde; Gerechtelijke chemie; Gerechtelijke psychiatrie; Chemistry, Forensic; Medical jurisprudence; Electronic journals; Periodicals; Electronic journals; 614.1
• DOI: 10.1016/j.forsciint.2015.05.003
• Languages: English
• ISSNs: 0379-0738

Abstract

Highlights: A new NPS, 4F-PBP was detected and identified for the first time in the EU. Analytical data for 4F-PBP are reported for the first time. Myo -inositol was found as cutting agent of 4F-PBP. A qNMR method was applied to profile cathinones purity. Abstract: The rapidly growing problem of new psychoactive substances (NPS) makes the time management for international control a real challenge, with the traditional detection methods becoming increasingly inadequate. NPS screening technologies, such as NMR, which allows multiple substances to be detected, characterized and quantified simultaneously from a single sample, offers a rapid solution to this problem. This study describes the application of NMR to the simultaneous detection, characterization and quantification of samples of white powders seized by the Portuguese Police. 4F-PBP (4′-fluoro-α-pyrolidinobutyrophenone) a new synthetic psychoactive cathinone cut with myo -inositol was found in two seized products. The structural characterization of 4F-PBP was elucidated in the mixture, and confirmed after isolation from the matrix by 1 H, 13 C, 19 F NMR and MS. Myo -inositol was found for the first time as a cutting agent of cathinones. Furthermore another seized product was characterized as being MDPBP, with a high degree of purity, and its spectroscopic elucidation enabled the correction of 13 C NMR literature assignments.