Synthesis, radiolabeling and in vivo evaluation of [11C](R)-1-[4-[2-(4-methoxyphenyl)phenyl]piperazin-1-yl]-3-(2-pyrazinyloxy)-2-propanol, a potential PET radioligand for the 5-HT7 receptor
作者:Hanne D. Hansen、Enza Lacivita、Pantaleo Di Pilato、Matthias M. Herth、Szabolcs Lehel、Anders Ettrup、Valdemar L. Andersen、Agnete Dyssegaard、Paola De Giorgio、Roberto Perrone、Francesco Berardi、Nicola Antonio Colabufo、Mauro Niso、Gitte M. Knudsen、Marcello Leopoldo
DOI:10.1016/j.ejmech.2014.03.066
日期:2014.5
novel serotonin 7 (5-HT7) receptor PET radioligand we synthesized and evaluated a new series of biphenylpiperazine derivatives in vitro. Among the studied compounds, (R)-1-[4-[2-(4-methoxyphenyl)phenyl]piperazin-1-yl]-3-(2-pyrazinyloxy)-2-propanol ((R)-16), showed the best combination of affinity, selectivity, and lipophilicity, and was thus chosen for carbon-11labelling and evaluation in pigs. After
in preclinical candidates (privileged scaffolds). The new compounds were synthesized, tested for their affinity at 5-HT7 and 5-HT1A receptors, and screened for their in vitro stability to microsomal degradation and toxicity. Selected compounds were characterized as 5-HT7 receptor-preferring ligands, endowed with high metabolic stability and low toxicity. Compound 7g emerged as a drug-like 5-HT7 receptor-preferring