SB-649868 是一种口服有效的选择性食欲素 OX1 和 OX 2 受体拮抗剂 (作用于 OX1 和 OX2 受体，pK_i 分别为 9.4 和 9.5)。

SB-649868 is a potent and selective orally active orexin (OX) 1 and OX 2 receptor antagonist (pK i =9.4 and 9.5 at the OX 1 and OX 2 receptor, respectively).

Solid

pKi: 9.4 (OX1), 9.5 (OX2)

SB-649868 is identified as one the most in vitro potent dual OX1 and OX2 receptor antagonist known at that time (pKi=9.4 and 9.5 at the OX1 and OX2 receptor, respectively) . SB-649868 antagonizes orexin-A-induced inositol 1 phosphate (IP1) accumulation with the following pKB value (OX1=9.67; OX2=9.64). SB-649868 displaces the [H]ACT-078573 receptor binding with the following pKi values: OX1=9.27; OX2=8.91. Increasing concentrations of SB-649868 (0.3 nM-30 nM) induces a rightward shift of the orexin-A CRCs with a depression of the agonist efficacy suggesting a clear non-surmountable behavior. The calculated apparent pKb values are 9.67±0.03 and 9.64±0.07 for OX1 and OX2. has not i

Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years；4°C 2 years

[1]. Di Fabio R, et al. Discovery process and pharmacological characterization of a novel dual orexin 1 and orexin 2receptor antagonist useful for treatment of sleep disorders. Bioorg Med Chem Lett. 2011 Sep 15;21(18):5562-7.
[2]. Faedo S, et al. Functional and binding kinetic studies make a distinction between OX1 and OX2 orexin receptorantagonists. Eur J Pharmacol. 2012 Oct 5;692(1-3):1-9.

In Vitro: DMSO : 100 mg/mL (209.40 mM; Need ultrasonic)配制储备液