82900-56-9Relevant articles and documents
Discovery of LASSBio-772, a 1,3-benzodioxole N-phenylpiperazine derivative with potent alpha 1A/D-Adrenergic receptor blocking properties
Romeiro, Luiz A.S.,Da Silva Ferreira, Marcos,Da Silva, Leandro L.,Castro, Helena C.,Miranda, Ana L.P.,Silva, Cláudia L.M.,No?l, Franois,Nascimento, Jéssica B.,Araújo, Claudia V.,Tibiri?á, Eduardo,Barreiro, Eliezer J.,Fraga, Carlos A.M.
, p. 3000 - 3012 (2011)
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 [ 3H]prazosin binding. We obtained Ki values of 0.14 nM for the alpha 1A-AR, similar to that displayed by tamsulosin (Ki = 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 (KB = 0.025 nM) for the alpha 1D-AR subtype in the functional rat aorta assay, showing to be equipotent to tamsulosin (KB = 0.017 nM).
