Synthesis and investigations of double-pharmacophore ligands for treatment of chronic and neuropathic pain
摘要:
Acids 9a-f as possible bivalent ligands designed as a structural combination of opioid mu-agonist (Fentanyl) and NSAID ( Indomethacin) activities and produced compounds which were tested as analgesics. The obtained series of compounds exhibits low affinity and activity both at opioid receptors and as cyclooxygenase ( COX) inhibitors. One explanation of the weak opioid activity could be stereochemical peculiarities of these bivalent compounds which differ significantly from the fentanyl skeleton. The absence of significant COX inhibitory properties could be explained by the required substitution of an acyl fragment in the indomethacin structure for 4-piperidyl. Published by Elsevier Ltd.
Hydrogen-Borrowing Amination of Secondary Alcohols Promoted by a (Cyclopentadienone)iron Complex
作者:Xishan Bai、Francesco Aiolfi、Mattia Cettolin、Umberto Piarulli、Alberto Dal Corso、Luca Pignataro、Cesare Gennari
DOI:10.1055/s-0039-1690101
日期:2019.9
(HB) amination has been expanded to secondaryalcohols, which had previously been reported to react only in the presence of large amounts of co-catalysts. A range of cyclic and acyclic secondaryalcohols were reacted with aromatic and aliphatic amines giving fair to excellent yields of the substitution products. The catalyst was also able to promote the cyclization of diols bearing a secondary alcohol