sr-1903

SR 1903 is an inverse agonist of RORγ and PPARγ (IC₅₀ = 100 nM and 209 nM, respectively) and an agonist of LXR (EC₅₀ = 154 nM). It exerts anti-inflammatory and anti-diabetic effects in mouse models of collagen-induced arthritis and diet-induced obesity.

Clonazoline HCl is the salt form of Clonazoline, a coronary vasodilator that is an imidazoline sympathomimetic, an alpha-adrenoreceptor agonist. It was used as a nasal decongestant and vasoconstrictor.

SR-1903 is a modulator of retinoic acid receptor-related orphan receptor γ (RORγ) and liver X receptor (LXR). It is an inverse agonist of RORγ and an agonist of LXR. It also binds to peroxisome proliferator-activated receptor γ (PPAR) but does not activate it. SR-1903 inhibits LPS-induced expression of triggering receptor expressed on myeloid cells 1 (TREM-1). It also inhibits LPS-induced expression of the LXR target genes IL-6 and IL-33 and increases expression of ABCG1, FASN, and SCD-1. SR-1903 reduces the severity of collagen-induced arthritis. It reduces blood glucose levels in a glucose tolerance test, serum levels of total cholesterol and LDL, body weight, and fat mass in a mouse model of high-fat diet-induced obesity.