| Bioactivity | ELN-441958 is a potent, neutral, competitive and selective bradykinin B1 receptor antagonist with a Ki of 0.26 nM against native human bradykinin B1 receptor. ELN-441958 has high oral bioavailability, and has low CNS exposure in the mouse[1]. | ||||||||||||
| Target | Ki: 0.26 nM (native human bradykinin B1 receptor) | ||||||||||||
| Invitro | ELN-441958 is selective for primate over rodent B1 receptors with a rank order potency (KB, nanomolar) of human (0.12 ± 0.02) ~ rhesus monkey (0.24 ± 0.01) > rat (1.5 ± 0.4) > mouse (14 ± 4)[1].ELN-441958 has good permeability and metabolic stability[1]. | ||||||||||||
| In Vivo | ELN-441958 (1-10 mg/kg; s.c.; once) dose-dependently reduces carrageenan-induced thermal hyperalgesia in a rhesus monkey tail-withdrawal model[1].ELN-441958 (0-10 mg/kg; i.v. or p.o.) exhibits a favorable pharmacokinetic profile in the rat and rhesus monkey[1]. Animal Model: | ||||||||||||
| Name | ELN-441958 | ||||||||||||
| CAS | 913064-47-8 | ||||||||||||
| Formula | C29H29ClN4O2 | ||||||||||||
| Molar Mass | 501.02 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Hawkinson JE, et al. Pharmacological, pharmacokinetic, and primate analgesic efficacy profile of the novel bradykinin B1 Receptor antagonist ELN441958. J Pharmacol Exp Ther.2007 Aug;322(2):619-630. |