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Embargo date
2030-01-01
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- IOC - Artigos de Periódicos [12973]
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DISCOVERY OF LASSBIO-772, A 1,3-BENZODIOXOLE N-PHENYLPIPERAZINE DERIVATIVE WITH POTENT ALPHA 1A/D-ADRENERGIC RECEPTOR BLOCKING PROPERTIES
Antagonista alfa-adrenoceptor
Hiperplasia benigna da próstata
Alpha-adrenoceptor antagonist
Benign prostatic hyperplasia
Safrole, 1,3-Benzodioxole
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Abstract
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).
Keywords in Portuguese
N-fenilpiperazinaAntagonista alfa-adrenoceptor
Hiperplasia benigna da próstata
Keywords
N-PhenylpiperazineAlpha-adrenoceptor antagonist
Benign prostatic hyperplasia
Safrole, 1,3-Benzodioxole
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