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European Journal of Medicinal Chemistry | 2001

Synthesis, anticonvulsant properties and pharmacokinetic profile of novel 10,11-dihydro-10-oxo-5H-dibenz/b,f/azepine-5-carboxamide derivatives.

David Alexander Learmonth; Jan Benes; António Parada; Dominik Hainzl; Alexander Beliaev; Maria João Bonifácio; Pedro M. Matias; Maria Arménia Carrondo; José Garrett; Patrício Soares-da-Silva

A series of novel derivatives of oxcarbazepine (5), 10,11-dihydro-10-oxo-5H-dibenz/b,f/azepine-5-carboxamide was synthesised and evaluated for their anticonvulsant activity and sodium channel blocking properties. The oxime 8 was found to be the most active compound from this series, displaying greater potency than its geometric isomer 9 and exhibiting also the highest protective index value. Importantly, the metabolic profile of 8 differs from the already established dibenz/b,f/azepine-5-carboxamide drugs such as 1 and 5 which undergo rapid and complete conversion in vivo to several biologically active metabolites. In contrast 8 is metabolised to only a very minor extent leading to the conclusion that the observed anti-convulsant effect is solely attributable to 8. It is concluded that 8 may be as effective as 1 and 5 at controlling seizures and that the low toxicity and consequently high protective index should provide the compound with an improved side-effect profile.


Archive | 2003

Imidazole deriviatives and their use as peripherally-selective inhibitors of dopamine-beta-hydroxylase

David Alexander Learmonth; Da Silva Patricio Manuel Viera Araujo Soares; Alexander Beliaev


Archive | 2008

1,3-Dihydroimidazole-2-Thione Derivatives as Inhibitors of Dopamine-Beta-Hydroxylase

Patrício Soares da Silva; David Alexander Learmonth; Alexander Beliaev


Archive | 2003

Peripherally-selective inhibitors of dopamine-β-hydroxylase and method of their preparation

David Alexander Learmonth; Patricio Manuel Viera Araújo Soares da Silva; Alexander Beliaev


Archive | 2008

5-o-substituted 3-n-phenyl-1,3,4-oxadiazolones for medical use

David Alexander Learmonth; Laszlo Erno Kiss; Alexander Beliaev; Humberto S. Ferreira; Patrício Soares da Silva


Archive | 2009

Catalytic process for asymmetric hydrogenation

David Alexander Learmonth; Antonio Zanotti-Gerosa; Gabriela Alexandra Grasa; Alexander Beliaev


Archive | 2008

New salts and crystal forms

David Alexander Learmonth; Alexander Beliaev; Melanie J. Roe; Petinka Vlahova; Eric J. Hagen; Valeriya Smolenskaya; Donglai Yang


Archive | 2008

Process for the Preparation of 2H-Chromene-3-Carbamate Derivatives

Brian Broadbelt; Alexander Beliaev; David Alexander Learmonth


Archive | 2007

New Crystal Forms

Alexander Beliaev; David Alexander Learmonth; Valeriya Smolenskaya


Archive | 2007

Polymorphs of (r) -5- (2-aminoethyl) -1- (6, 8-difluorochroman-3-yl) -1,3- dihydroimidazole-thione hydrochloride

Alexander Beliaev; David Alexander Learmonth; Valeriya Smolenskaya

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