Background:

Rimonabant (SR141716) is a potent and selective antagonist of central cannabinoid (CB1) receptor with Ki values of 1.8nM and 514nM for CB1 and CB2, respectively [1].

Rimonabant (SR141716) has shown a 285–fold CB1 selectivity (Ki=1.8nM CB1, 514nM CB2). The affinity of Rimonabant for CB1-Rs is 50-fold higher than for CB2-Rs with a Ki value of 6.18nM for CB1-Rs [1]. In addition, Rimonabant has been revealed to produce changes in ingestive behaviors when treatment alone. Moreover Rimonabant has been reported to selectively reduce the consumption of palatable food and drink. Rimonabant has also been noted to decrease sucrose intake in rat, alcohol consumption in mice and sweet diet intake in marmosets when having little effect on bland food consumption [2].

参考文献:
[1]Soudijn W1, van Wijngaarden I, Ijzerman AP. Structure-activity relationships of inverse agonists for G-protein-coupled receptors. Med Res Rev. 2005 Jul;25(4):398-426.
[2] Ravinet Trillou C1, Arnone M, Delgorge C, Gonalons N, Keane P, Maffrand JP, Soubrie P. Anti-obesity effect of SR141716, a CB1 receptor antagonist, in diet-induced obese mice. Am J Physiol Regul Integr Comp Physiol. 2003 Feb;284(2):R345-53. Epub 2002 Oct 24.