In this thesis structural characterization of two unknown illicit substances was done. 1H, 13C, 19F, 1H–1H COSY, 1H–13C HSQC, 1H–13C HMBC and 1H–15N HMBC NMR spectra were recorded. Based on the spectra, two indazole derivatives were identified: methyl 2-{[1-(5-fluoropentyl)-1H-indazol-3-yl]formamido}-3,3-dimethylbutanoate (5F-MDMB-PINACA) and methyl 3,3‐dimethyl‐2‐{[1‐(pent‐4‐en‐1‐yl)‐1H‐indazol‐3‐yl]formamido}butanoate (MDMB-4en-PINACA). Spectral data for the compounds are in accordance with those previously reported in the literature.
Keywords: 5F-MDMB-PINACA, MDMB-4en-PINACA, NMR, characterization
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