Novel furfurylidene <i>N</i>-acylhydrazones derived from natural safrole: discovery of LASSBio-1215, a new potent antiplatelet prototype
作者:Ana Paula C. Rodrigues、Luciana M.M. Costa、Bruna L.R. Santos、Rodolfo C. Maia、Ana L.P. Miranda、Eliezer J. Barreiro、Carlos A.M. Fraga
DOI:10.3109/14756366.2011.578575
日期:2012.2.1
We describe herein the discovery of (E)-N-methyl-N'-((5-nitrofuran-2-yl) methylene) benzo[d][1,3]dioxole-5-carbohydrazide (9e), named LASSBio-1215, as a novel antiplatelet agent belonging to the N-methyl-N-acylhydrazone class, which exert their antiaggregating actions on human and rabbit platelets induced by different agonists, through cyclooxygenase-1 (COX-1) or thromboxane synthase inhibition. This compound was elected after screening of a series of functionalized furyl N-acylhydrazone derivatives, synthesized from natural safrole 10. In vitro assays showed that compound 9e presents platelet-aggregating activity in rabbit platelet-rich plasma (PRP) induced by arachidonic acid (IC50 = 0.7 mu M) and collagen (IC50 = 4.5 mu M). Moreover, LASSBio-1215 also inhibited almost completely the second wave of adenosine diphosphate-induced platelet aggregation in human PRP, and this effect was correlated with their ability to block the production of pro-aggregating autacoid thromboxane A(2).