Chimeric derivatives of functionalized amino acids and α-aminoamides: Compounds with anticonvulsant activity in seizure models and inhibitory actions on central, peripheral, and cardiac isoforms of voltage-gated sodium channels
摘要:
Six novel 3 ''-substituted (R)-N-(phenoxybenzyl) 2-N-acetamido-3-methoxypropionamides were prepared and then assessed using whole-cell, patch-clamp electrophysiology for their anticonvulsant activities in animal seizure models and for their sodium channel activities. We found compounds with various substituents at the terminal aromatic ring that had excellent anticonvulsant activity. Of these compounds, (R)-N-4'-((3 ''-chloro) phenoxy) benzyl 2-N-acetamido-3-methoxypropionamide ((R)-5) and (R)-N-4'-((3 ''-trifluoromethoxy) phenoxy) benzyl 2-N-acetamido-3-methoxypropionamide ((R)-9) exhibited high protective indices (PI = TD50/ED50) comparable with many antiseizure drugs when tested in the maximal electroshock seizure test to mice (intraperitoneally) and rats (intraperitoneally, orally). Most compounds potently transitioned sodium channels to the slow-inactivated state when evaluated in rat embryonic cortical neurons. Treating HEK293 recombinant cells that expressed hNaV1.1, rNa(V)1.3, hNa(V)1.5, or hNa(V)1.7 with (R)-9 recapitulated the high levels of sodium channel slow inactivation. (C) 2015 Elsevier Ltd. All rights reserved.
Flavones as isosteres of 4(1H)-quinolones: Discovery of ligand efficient and dual stage antimalarial lead compounds
作者:Tiago Rodrigues、Ana S. Ressurreição、Filipa P. da Cruz、Inês S. Albuquerque、Jiri Gut、Marta P. Carrasco、Daniel Gonçalves、Rita C. Guedes、Daniel J.V.A. dos Santos、Maria M. Mota、Philip J. Rosenthal、Rui Moreira、Miguel Prudêncio、Francisca Lopes
DOI:10.1016/j.ejmech.2013.09.008
日期:2013.11
diverse set of flavones, isosteric to 4(1H)-quinolones, were prepared and profiled for their antiplasmodial activity against the blood stage of P. falciparum W2 strain, and the liver stage of the rodent parasite Plasmodium berghei. Ligand efficient leads were identified as dualstage antimalarials, suggesting that scaffold optimization may afford potent antiplasmodial compounds.
COMPOSITION FOR AGRICULTURAL USE FOR CONTROLLING OR PREVENTING PLANT DISEASES CAUSED BY PLANT PATHOGENS
申请人:Matsuzaki Yuichi
公开号:US20110009454A1
公开(公告)日:2011-01-13
Disclosed is a composition for agricultural use, which is used for controlling or preventing plant diseases caused by plant pathogens. The composition for agricultural use contains a compound represented by formula (1), a salt thereof or a hydrate of the compound or the salt. (1) [In the formula, Z represents an oxygen atom, a sulfur atom or NR
Z
; and E represents a furyl group, a thienyl group, a pyrrolyl group, a tetrazolyl group, a thiazolyl group, a pyrazolyl group, a phenyl group or the like.]
[EN] COMPOSITION FOR AGRICULTURAL USE FOR CONTROLLING OR PREVENTING PLANT DISEASES CAUSED BY PLANT PATHOGENS<br/>[FR] COMPOSITION À USAGE AGRICOLE POUR LUTTER CONTRE OU EMPÊCHER DES MALADIES DE PLANTE PROVOQUÉES PAR DES AGENTS PATHOGÈNES DE PLANTE
Chimeric derivatives of functionalized amino acids and α-aminoamides: Compounds with anticonvulsant activity in seizure models and inhibitory actions on central, peripheral, and cardiac isoforms of voltage-gated sodium channels
作者:Robert Torregrosa、Xiao-Fang Yang、Erik T. Dustrude、Theodore R. Cummins、Rajesh Khanna、Harold Kohn
DOI:10.1016/j.bmc.2015.04.014
日期:2015.7
Six novel 3 ''-substituted (R)-N-(phenoxybenzyl) 2-N-acetamido-3-methoxypropionamides were prepared and then assessed using whole-cell, patch-clamp electrophysiology for their anticonvulsant activities in animal seizure models and for their sodium channel activities. We found compounds with various substituents at the terminal aromatic ring that had excellent anticonvulsant activity. Of these compounds, (R)-N-4'-((3 ''-chloro) phenoxy) benzyl 2-N-acetamido-3-methoxypropionamide ((R)-5) and (R)-N-4'-((3 ''-trifluoromethoxy) phenoxy) benzyl 2-N-acetamido-3-methoxypropionamide ((R)-9) exhibited high protective indices (PI = TD50/ED50) comparable with many antiseizure drugs when tested in the maximal electroshock seizure test to mice (intraperitoneally) and rats (intraperitoneally, orally). Most compounds potently transitioned sodium channels to the slow-inactivated state when evaluated in rat embryonic cortical neurons. Treating HEK293 recombinant cells that expressed hNaV1.1, rNa(V)1.3, hNa(V)1.5, or hNa(V)1.7 with (R)-9 recapitulated the high levels of sodium channel slow inactivation. (C) 2015 Elsevier Ltd. All rights reserved.