Identification of synthetic cannabinoid methyl 2-{[1-(cyclohexylmethyl)-1H-indol-3-yl] formamido}-3-methylbutanoate using modern mass spectrometry and nuclear magnetic resonance techniques - Lukic Vera; Micic Ruzica; Arsic Biljana; Mitic Milan; Jovanovic Milos; Pavlovic Aleksandra (Open Chemistry, 2021)