[1] JENNIFER M. FROST*. Indol-3-ylcycloalkyl Ketones: Effects of N1 Substituted Indole Side Chain Variations on CB2 Cannabinoid Receptor Activity[J]. Journal of Medicinal Chemistry, 2009, 53 1: 295-315. DOI:
10.1021/jm901214q[2] KATHRYN A. SEELY . Forensic investigation of K2, Spice, and “bath salt” commercial preparations: A three-year study of new designer drug products containing synthetic cannabinoid, stimulant, and hallucinogenic compounds[J]. Forensic science international, 2013, 233 1: Pages 416-422. DOI:
10.1016/j.forsciint.2013.10.002 
