L-654284 is a selective α2-adrenergic receptor antagonist that effectively competes with the binding of radiolabeled 3H-clonidine and 3H-rauwolscine, exhibiting Ki values of 0.8 nM and 1.1 nM, respectively. This compound demonstrates the ability to block the effects of clonidine in isolated rat vas deferens, with a pA2 value of 9.1. Additionally, L-654284 shows notable selectivity towards α2 and α1 adrenergic receptors, with a Ki of 110 nM against 3H-prazosin binding. In vivo studies reveal that L-654284 enhances norepinephrine turnover in the rat cerebral cortex, highlighting its potential applications in research related to central nervous system pharmacology.
L-654284 is a selective α2-adrenergic receptor antagonist that effectively competes with the binding of radiolabeled 3H-clonidine and 3H-rauwolscine, exhibiting Ki values of 0.8 nM and 1.1 nM, respectively. This compound demonstrates the ability to block the effects of clonidine in isolated rat vas deferens, with a pA2 value of 9.1. Additionally, L-654284 shows notable selectivity towards α2 and α1 adrenergic receptors, with a Ki of 110 nM against 3H-prazosin binding. In vivo studies reveal that L-654284 enhances norepinephrine turnover in the rat cerebral cortex, highlighting its potential applications in research related to central nervous system pharmacology.
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