4-Hydroxy-N-[3,5-bis(trifluoromethyl)phenyl]-1,2,5-thiadiazole-3-carboxamide: a novel inhibitor of the canonical NF-κB cascade
作者:Agnese C. Pippione、Antonella Federico、Alex Ducime、Stefano Sainas、Donatella Boschi、Alessandro Barge、Elisa Lupino、Marco Piccinini、Michael Kubbutat、Jean-Marie Contreras、Christophe Morice、Salam Al-Karadaghi、Marco L. Lolli
DOI:10.1039/c7md00278e
日期:——
Compound 4, derived from IMD-0354, blocks the canonical NF-κB pathway although it is inactive on the IKKβ enzyme.
化合物4,源自IMD-0354,尽管对IKKβ酶无效,但可以阻断经典NF-κB途径。
New inhibitors of dihydroorotate dehydrogenase (DHODH) based on the 4-hydroxy-1,2,5-oxadiazol-3-yl (hydroxyfurazanyl) scaffold
作者:Marco L. Lolli、Marta Giorgis、Paolo Tosco、Antonio Foti、Roberta Fruttero、Alberto Gasco
DOI:10.1016/j.ejmech.2011.12.038
日期:2012.3
Based on some structural analogies with leflunomide and brequinar, two well-known inhibitors of dihydroorotate dehydrogenase (DHODH), a new series of products was designed, by joining the substituted biphenyl moiety to the 4-hydroxy-1,25-oxadiazol-3-yl scaffold through an amide bridge. The compounds were studied for their DHODH inhibitory activity on rat liver mitochondrial/microsomal membranes. The activity was found to be closely dependent on the substitution pattern at the biphenyl system; the most potent products were those bearing two or four fluorine atoms at the phenyl adjacent to the oxadiazole ring. A molecular modeling study suggested that these structures might have a bre-quinar-like binding mode. The greater potency of fluorinated analogs may depend partly on enhanced interactions with the hydrophobic ubiquinone channel, and partly on the role of fluorine in stabilizing the putative bioactive conformation. (C) 2012 Elsevier Masson SAS. All rights reserved.
Hydroxytriazole derivatives as potent and selective aldo-keto reductase 1C3 (AKR1C3) inhibitors discovered by bioisosteric scaffold hopping approach
作者:Agnese C. Pippione、Alessandro Giraudo、Davide Bonanni、Irene M. Carnovale、Elisabetta Marini、Clara Cena、Annalisa Costale、Daniele Zonari、Klaus Pors、Maria Sadiq、Donatella Boschi、Simonetta Oliaro-Bosso、Marco L. Lolli
DOI:10.1016/j.ejmech.2017.08.046
日期:2017.10
Flufenamic acid, a non-steroidal anti-inflammatory drug, is known to potentlyinhibit AKR1C3 in a non-selective manner as COX off-target effects are also observed. To diminish off-target effects, we have applied a scaffoldhopping strategy replacing the benzoic acid moiety of flufenamic acid with an acidic hydroxyazolecarbonylic scaffold. In particular, differently N-substituted hydroxylated triazoles