作者: Claudia Vergelli , Giovanna Ciciani , Agostino Cilibrizzi , Letizia Crocetti , Lorenzo Di Cesare Mannelli
DOI: 10.1016/J.BMC.2015.08.043
关键词:
摘要: A number of heterocycles bearing an arylpiperazinylalkyl side chain and structurally related to the previously described lead ET1 (4-amino-6-methyl-2-[3-(4-p-tolylpiperazin-1-yl)propyl]-5-vinylpyridazin-3(2H)-one) was synthesized tested for their antinociceptive activity in Writhing Test. Many compounds, at doses 20-40 mg/kg po were able reduce abdominal constrictions by more than 47% and, same cases, potency is comparable as 5e, 24a, 27b 27c. The analgesia induced active compounds completely prevented pretreatment with α2-antagonist yohimbine, confirming involvement adrenergic system mechanism action these new compounds.