3460-04-6Relevant articles and documents
Synthesis, in silico Study and Antileishmanial Evaluation of New Selenides Derived from 7-Chloro-quinoline and N-Phenylacetamides
Huang, Min-Fu N.,Luis, José A.S.,da Silva, Alison P.,Rocha, Juliana C.,Lima, Tatjana K.S.,Scotti, Marcus T.,Scotti, Luciana,de Oliveira, Rafael F.,Souza, Helivaldo D.S.,de Athayde-Filho, Petr?nio F.,Barbosa-Filho, José M.
, p. 712 - 721 (2021/03/17)
This study describes a virtual screening performed for two series of selenides (28 compounds), derived from N-phenylacetamides chlorides and 7-chloro-quinoline, to determine their potential for leishmanicidal activity against Leishmania amazonensis and Leishmania donovani. Seven compounds were predicted as potential leishmanicides; therefore, they were synthesized from elemental selenium, as a precursor for the production of NaHSe, and subsequent reactions with 4,7-dichloro-quinoline and N-phenylacetamides chlorides were performed. The compounds were characterized by infrared (IR), 1H and 13C nuclear magnetic resonance (NMR), and sent for in vitro cytotoxicity tests against L. amazonensis and were found to be active and selective, and two compounds presented half-maximal inhibitory concentrations (IC50) of 5.67 and 10.81 μg mL-1. They also presented good interaction energies in the docking study, suggesting that may exert their effects by inhibiting the N-myristoyltransferase and O-acetylserine sulfhydrylase enzymes in parasites.
Synthesis and Exploration of Abscisic Acid Receptor Agonists Against Dought Stress by Adding Constraint to a Tetrahydroquinoline-Based Lead Structure
Baltz, Rachel,Bojack, Guido,Dittgen, Jan,Fischer, Christian,Frackenpohl, Jens,Freigang, J?rg,Getachew, Rahel,Grill, Erwin,Helmke, Hendrik,Hohmann, Sabine,Lange, Gudrun,Lehr, Stefan,Porée, Fabien,Schmidt, Jana,Schmutzler, Dirk,Yang, Zhenyu
, p. 3442 - 3457 (2021/06/25)
New oxotetrahydroquinolinyl- and oxindolinyl sulfonamides interacting with RCAR/(PYR/PYL) receptor proteins were identified as lead structures against drought stress in crops starting from protein docking studies of a sulfonamide lead structure, followed by in-depth SAR studies. Optimized five to six step synthetic approaches via substituted amino oxo-tetrahydro-quinolines and amino oxo-indolines as essential intermediates gave access to the envisaged oxo-tetrahydroquinolinyl and oxindolinyl sulfonamides. Whilst oxo-tetrahydroquinolinyl sulfonamides with additional carbon substituents or spiro-cycloalkyl groups exhibited only low to moderate target affinities, the corresponding spiro-oxindolinyl and oxo-tetrahydroquinolinyl sulfonamides carrying optimized N-substituents revealed strong interactions with RCAR/(PYR/PYL) receptor proteins in Arabidopsis thaliana. Remarkably, the in vitro activity observed for these new compounds was on the same level as observed for the naturally occurring plant hormone in line with strong efficacy against drought stress in-vivo (canola and wheat as broad-acre crops).
Demonstration of in Vitro Resurrection of Aged Acetylcholinesterase after Exposure to Organophosphorus Chemical Nerve Agents
Zhuang, Qinggeng,Franjesevic, Andrew J.,Corrigan, Thomas S.,Coldren, William H.,Dicken, Rachel,Sillart, Sydney,Deyong, Ashley,Yoshino, Nathan,Smith, Justin,Fabry, Stephanie,Fitzpatrick, Keegan,Blanton, Travis G.,Joseph, Jojo,Yoder, Ryan J.,McElroy, Craig A.,Ekici, ?zlem Dogan,Callam, Christopher S.,Hadad, Christopher M.
supporting information, p. 7034 - 7042 (2018/06/13)
After the inhibition of acetylcholinesterase (AChE) by organophosphorus (OP) nerve agents, a dealkylation reaction of the phosphylated serine, referred to as aging, can occur. When aged, known reactivators of OP-inhibited AChE are no longer effective. Realkylation of aged AChE may provide a route to reversing aging. We designed and synthesized a library of quinone methide precursors (QMPs) as proposed realkylators of aged AChE. Our lead compound (C8) from an in vitro screen successfully resurrected 32.7 and 20.4% of the activity of methylphosphonate-aged and isopropyl phosphate-aged electric-eel AChE, respectively, after 4 days. C8 displays properties of both resurrection (recovery from the aged to the native state) and reactivation (recovery from the inhibited to the native state). Resurrection of methylphosphonate-aged AChE by C8 was significantly pH-dependent, recovering 21% of activity at 4 mM and pH 9 after only 1 day. C8 is also effective against isopropyl phosphate-aged human AChE.