Article
Discovery of LASSBio-772, a 1,3-benzodioxole N-phenylpiperazine derivative with potent alpha 1A/D-adrenergic receptor blocking properties
Registro en:
ROMEIRO, Luiz A. S. et al. Discovery of LASSBio-772, a 1,3-benzodioxole N-phenylpiperazine derivative with potent alpha 1A/D-Adrenergic receptor blocking properties. European Journal of Medicinal Chemistry, v.46, p.3000-3012, April 2011.
0223-5234
10.1016/j.ejmech.2011.04.032
Autor
Romeiro, Luiz A. S.
Ferreira, Marcos da Silva
Silva, Leandro L. da
Castro, Helena C.
Miranda, Ana L P
Silva, Cláudia L. M.
Noël, François
Nascimento, Jéssica B.
Araújo, Claudia V.
Tibiriçá, Eduardo
Barreiro, Eliezer J.
Fraga, Carlos A. M.
Resumen
We described herein the discovery of 1-(2-(benzo[d] [1,3]dioxol-6-yl)ethyl)-4-(2-methoxyphenyl) piperazine (LASSBio-772), as a novel potent and selective alpha 1A/1D adrenoceptor (AR) antagonist selected after screening of functionalized N-phenylpiperazine derivatives in phenylephrine-induced vasoconstriction of rabbit aorta rings. The affinity of LASSBio-772 for alpha 1A and alpha 1B AR subtypes was determined through displacement of [(3)H]prazosin binding. We obtained Ki values of 0.14 nM for the alpha 1A-AR, similar to that displayed by tamsulosin (K(i) = 0.13 nM) and 5.55 nM for the alpha 1B-AR, representing a 40-fold higher affinity for alpha 1A-AR. LASSBio-772 also presented high affinity (K(B) = 0.025 nM) for the alpha 1D-AR subtype in the functional rat aorta assay, showing to be equipotent to tamsulosin (K(B) = 0.017 nM). 2030-01-01