Frontiers Enantiospecific Synthesis, Chiral Separation, and Biological Activity of Four Indazole 3 Carboxamide Type Synthetic Cannabinoid Receptor Agonists and Their Detection in Seized Drug Samples Isolation, detection and identification of synthetic cannabinoids in alternative formulations or dosage forms ScienceDirect 5F AKB 48 C Liquid 5f akb48 buy 5f pb 22 ab fubinaca ab fub Pharmacological and Behavioral Effects of the Synthetic Cannabinoid AKB48 in Rats Frontiers