Following our research project aimed at obtaining new compounds with high affinity and selectivity toward alpha(1)-adrenoceptors (AR), a new class of piperazine derivatives was designed, synthesized and biologically tested. The new compounds 1-13 are characterized by a flavone system linked, through an ethoxy or propoxy spacer, to a phenyl- or pyridazinone-piperazine moiety. Biological data showed an interesting profile for the phenylpiperazine subclass found to have a nanomolar affinity toward alpha(1)-AR, and less pronounced affinity for alpha(2)-AR and the 5-HT1A serotoninergic receptor. A discussion on the structure-activity relationship (SAR) of such compounds is also reported, on the basis of the flavone substitution pattern, length and functionalization of the spacer, and disruption of the phenylpiperazine system.
|Autori interni:||BETTI, LAURA|
|Autori:||Betti L.; Floridi M.; Giannaccini G.; Manetti F.; Paparelli C.; Strappaghetti G.; Botta M.|
|Titolo:||Design, synthesis, and a1-adrenoceptor binding properties of new arylpiperazine derivatives bearing a flavone nucleus as terminal heterocyclic molecular portion.|
|Anno del prodotto:||2004|
|Digital Object Identifier (DOI):||10.1016/j.bmc.2003.12.033|
|Appare nelle tipologie:||1.1 Articolo in rivista|