Development of cognitive enhancers acting through AMPA potentiation: design of novel benzothiadiazine 1,1-dioxides with improved pharmacokinetic profileFrancotte, Pierre ; De Tullio, Pascal ; Fraikin, Pierre et alConference (2008, May) Detailed reference viewed: 19 (5 ULg) Synthesis and pharmacological evaluation of a second generation of pyridothiadiazine 1,1-dioxides acting as AMPA potentiators.Francotte, Pierre ; De Tullio, Pascal ; et alin Bioorganic & Medicinal Chemistry (2008), 16(23), 9948-56 Taking into account structure-activity relationships obtained with our previous series, new diversely substituted 1,2,4-pyridothiadiazine 1,1-dioxides were designed to obtain novel AMPA potentiators. The ... [more ▼] Taking into account structure-activity relationships obtained with our previous series, new diversely substituted 1,2,4-pyridothiadiazine 1,1-dioxides were designed to obtain novel AMPA potentiators. The aim of this work was focused on the improvement of lipophilicity, which is well known as a critical parameter to obtain in vivo active central nervous system agents. For this purpose, two positions on the pyridine ring were privileged to insert selected groups. Among the synthesized compounds emerged 7-chloro-4-ethyl-3,4-dihydro-2H-pyrido[2,3-e]-[1,2,4]-thiadiazine 1,1-dioxide (12d), which was evaluated in two memory tests in Wistar rats and showed cognition enhancing effects after intraperitoneal injection at doses as low as 0.3mg/kg. [less ▲] Detailed reference viewed: 63 (27 ULg) Application of LC-SPE-NMR to the structural determination of metabolites of KATP channel openers belonging to 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxidesFrancotte, Pierre ; ; et alConference (2007, October) Detailed reference viewed: 3 (1 ULg) Design, synthèse et évaluation pharmacologique de 1,2,4-thiénothiadiazine 1,1-dioxydes en tant que nouveaux potentialisateurs AMPAFrancotte, Pierre ; ; De Tullio, Pascal et alPoster (2007, May) Detailed reference viewed: 6 (1 ULg) Coupling of the LC-MS/MS and the LC-SPE-NMR for the structural identification of pancreatic KATP channel openers metabolites following in vitro biotransformation; De Tullio, Pascal ; VAN HEUGEN, Jean-Claude et alPoster (2007) Detailed reference viewed: 9 (0 ULg) AChE Inhibitors and their Clinical AssessmentFrancotte, Pierre ; De Tullio, Pascal ; Pirotte, Bernard ![]() in Protein Misfolding in Neurodegenerative Diseases: Mechanisms and Therapeutic Strategies (2007) Detailed reference viewed: 7 (4 ULg) Design, synthesis, and pharmacology of novel 7-substituted 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxides as positive allosteric modulators of AMPA receptorsFrancotte, Pierre ; De Tullio, Pascal ; Goffin, Eric et alin Journal of Medicinal Chemistry (2007), 50(13), 3153-3157 A series of 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxides have been synthesized and evaluated as potentiators of AMPA receptors. Attention was paid to the impact of the substituent introduced at the ... [more ▼] A series of 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxides have been synthesized and evaluated as potentiators of AMPA receptors. Attention was paid to the impact of the substituent introduced at the 7-position of the heterocycle. The biological evaluation was achieved by measuring the AMPA current in rat cortex mRNA-injected Xenopus oocytes. The most potent compound, 4-ethyl-7-fluoro-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide (12a) was found to be active in an object recognition test in rats demonstrating cognition enhancing effects in vivo after oral administration. [less ▲] Detailed reference viewed: 49 (22 ULg) Cholinergic Transmission and Acetylcholine release enhancersFrancotte, Pierre ; De Tullio, Pascal ; Pirotte, Bernard ![]() in Protein Misfolding in neuro degenerative Diseases : Mechanisms and Therapeutic Strategies (2007) Detailed reference viewed: 12 (5 ULg) Novel dipyrazoles acting as glutamate modulatorsFrancotte, Pierre ; De Tullio, Pascal ; Pirotte, Bernard ![]() in Expert Opinion on Therapeutic Patents (2007), 17(12), 1489-1493 Knowing the potential therapeutic interest of AMPA potentiation, patents have been published for 15 years relating the discovery of novel compounds able to allosterically bind to the AMPA receptors and ... [more ▼] Knowing the potential therapeutic interest of AMPA potentiation, patents have been published for 15 years relating the discovery of novel compounds able to allosterically bind to the AMPA receptors and leading to a potentiation of the AMPA signals. Besides this classical approach, a new target for the medicinal chemist has been defined due to the recent findings describing the modulation of AMPA receptors by neuronal proteins, and has led to the design of dipyrazole compounds by Aventis. These new dipyrazole derivatives may be considered as `indirect AMPApams', constituting a new pharmacological class. Based on their in vitro activity, it is probable that these compounds could be of therapeutic value for the treatment of cognitive disorders, schizophrenia or depression. [less ▲] Detailed reference viewed: 31 (16 ULg) Etude de la métabolisation in vitro d’activateurs des canaux potassiques appurtenant à la classe des 3-alkylamino-4H-1,2,4-benzothiadiazine 1,1-dioxydes: utilisation conjuguée de la LC-MS et de la LC-SPE-NMRFrancotte, Pierre ; De Tullio, Pascal ; Pirotte, Bernard ![]() Scientific conference (2006, December 14) Detailed reference viewed: 3 (0 ULg) In vitro metabolisation study of several 3-alkylamino-4H-1,2,4-benzothiadiazine 1,1-dioxides as ATP-sensitive potassium channel openers : combined use of LC-Q-TOF MS/MS and LC-SPE-NMRDe Tullio, Pascal ; Chiap, Patrice ; Francotte, Pierre et alPoster (2006, November 18) Detailed reference viewed: 5 (1 ULg) Application of LC-SPE-NMR to the structural determination of KATP channel openers metabolites belonging to the 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxide derivativesDe Tullio, Pascal ; Frederich, Michel ; Chiap, Patrice et alConference (2006, November 17) Detailed reference viewed: 2 (0 ULg) Combined use of LC-SPE-NMR and LC-MS for the metabolites characterization of ATP-sensitive potassium channel openers belonging to 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxidesDe Tullio, Pascal ; ; Francotte, Pierre et alPoster (2006, August) Detailed reference viewed: 9 (0 ULg) Design, synthesis and pharmacological evaluation of novel 7-substituted 3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxides acting as AMPA potentiatorsFrancotte, Pierre ; De Tullio, Pascal ; et alPoster (2006, August) Detailed reference viewed: 6 (0 ULg) Design, synthèse et évaluation pharmacologique de 1,2,4-pytridothiadiazine 1,1-dioxydes en tant que nouveaux potentiateurs AMPAFrancotte, Pierre ; Fraikin, Pierre ; De Tullio, Pascal et alPoster (2006, June) Detailed reference viewed: 7 (0 ULg) Application de la LC-SPE-RMN et de la LC-MS à la détermination structurale des métabolites d’activateurs des canaux KATP de la classe des 3-alkylamino-4H-arylthiadiazine 1,1-dioxydesDe Tullio, Pascal ; Chiap, Patrice ; Francotte, Pierre et alPoster (2006, June) Detailed reference viewed: 44 (2 ULg) Application of LC-SPE-NMR and LC-Q-TOF MS/MS to the structural determination of KATP channel openers metabolites belonging to the 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxides; De Tullio, Pascal ; Van Heugen, Jean-Claude et alPoster (2006, May 17) Detailed reference viewed: 14 (1 ULg) New trends in the design of drugs against Alzheimer's diseaseFrancotte, Pierre ; De Tullio, Pascal ; Fraikin, Pierre et alin Frontiers in Medicinal Chemistry (2006), 3 Detailed reference viewed: 16 (5 ULg) Selective pancreatic ATP-sensitive potassium channel openers for the treatement of glucose homeostasis disordersDe Tullio, Pascal ; ; Florence, Xavier et alin Drugs of the Future (2006), 31 Detailed reference viewed: 7 (1 ULg) Three-Dimentional Quantitative Structure-Activity Relationships of ATP-Sensitive Potassium (KATP) Channel Openers Belonging to the 3-Alkylamino-4H-1,2,4-benzo- and 3-Alkylamino-4H-1,2,4-pyridothiadiazine 1,1-Dioxide FamiliesDe Tullio, Pascal ; ; Francotte, Pierre et alin Journal of Medicinal Chemistry (2006), 49 Detailed reference viewed: 5 (0 ULg) |
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