The name AZ-037 is also used as a synonym for its structural isomer 5-fluoro-3,5-AB-PFUPPYCA.[5] Thus AZ-037 is being used as a synonym for two different compounds.
5-fluoro-3,5-AB-PFUPPYCA has been detected in synthetic cannabinoid smoke blends in the USA as early as December 30, 2021, along with ADB-BUTINACA, MDA-19 (BZO-HEXOXIZID) and MDMB-4en-PINACA.[6]
5-fluoro-AB-PFUPPYCA contains some similar structural elements to other synthetic cannabinoids such as AB-CHFUPYCA, JWH-307, JWH-030, JWH-147, AB-PINACA. It may be considered an analog of the traditional pyrazole cannabinoid receptor 1 antagonist rimonabant. The pharmacological properties of 5F-AB-FUPPYCA have not been studied.
Legality
In the United States, 5F-AB-FUPPYCA is unscheduled at the federal level as of May 22, 2023. It's possible that it may be considered under the federal analogue act as a functional analog due to pharmacology or as a distant structural analog of JWH-307.
North Dakota has placed 5F-AB-FUPPYCA (N-(1-carbamoyl-2-methyl-propyl)-2-(5-fluoropentyl)-5-(4-fluorophenyl)pyrazole-3-carboxamide) into Schedule I status on 04/27/2023. However, this did not include structural substitutions it gave to other cannabinoid structural classes. As such does not include other pyrazoles analogs such as the non-fluorinated AB-FUPPYCA analog.[7]
^Girreser U, Rösner P, Vasilev A (July 2016). "Structure elucidation of the designer drug N-(1-amino-3,3-dimethyl-1-oxobutan-2-yl)-1-(5-fluoropentyl)-3-(4-fluorophenyl)-pyrazole-5-carboxamide and the relevance of predicted (13) C NMR shifts - a case study". Drug Testing and Analysis. 8 (7): 668–75. doi:10.1002/dta.1820. PMID26012418.
^Banister SD, Longworth M, Kevin R, Sachdev S, Santiago M, Stuart J, et al. (September 2016). "Pharmacology of Valinate and tert-Leucinate Synthetic Cannabinoids 5F-AMBICA, 5F-AMB, 5F-ADB, AMB-FUBINACA, MDMB-FUBINACA, MDMB-CHMICA, and Their Analogues". ACS Chemical Neuroscience. 7 (9): 1241–54. doi:10.1021/acschemneuro.6b00137. PMID27421060.
