L-765,314 is a drug which acts as a potent and selective antagonist of the α1-adrenergic receptor subtype α1B.[1] It has mainly been used to investigate the role of α1B-adrenergic receptors in the regulation of blood pressure.[2][3] The α1B receptor is also thought to have an important role in the brain; however, L-765,314 does not cross the blood–brain barrier.[4]
^Patane MA, Scott AL, Broten TP, Chang RS, Ransom RW, DiSalvo J, Forray C, Bock MG (April 1998). "4-Amino-2-[4-[1-(benzyloxycarbonyl)-2(S)- [[(1,1-dimethylethyl)amino]carbonyl]-piperazinyl]-6, 7-dimethoxyquinazoline (L-765,314): a potent and selective alpha1b adrenergic receptor antagonist ". Journal of Medicinal Chemistry. 41 (8): 1205–8. doi:10.1021/jm980053f. PMID9548811.
^Görnemann T, Villalón CM, Centurión D, Pertz HH (June 2009). "Phenylephrine contracts porcine pulmonary veins via alpha(1B)-, alpha(1D)-, and alpha(2)-adrenoceptors". European Journal of Pharmacology. 613 (1–3): 86–92. doi:10.1016/j.ejphar.2009.04.011. PMID19376108.
^Hillman KL, Doze VA, Porter JE (June 2007). "Alpha1A-adrenergic receptors are functionally expressed by a subpopulation of cornu ammonis 1 interneurons in rat hippocampus". The Journal of Pharmacology and Experimental Therapeutics. 321 (3): 1062–8. doi:10.1124/jpet.106.119297. PMID17337632. S2CID8780600.