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Synthesis and inotropic evaluation of 1-substituted-N-(4,5-dihydro-1-methyl-[1,2,4]triazolo[4,3-a]quinolin-7-yl)piperidine-4-carboxamides.

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Prijava / prijava

A series of 1-substituted-N-(4,5-dihydro-1-methyl-[1,2,4]triazolo[4,3-a]quinolin-7-yl) piperidine-4-carboxamides has been synthesized and evaluated for positive inotropic activity by measuring left atrium stroke volume in isolated rabbit-heart preparations. Some of these derivatives exhibited

Neuroprotection from focal ischemia by 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP) is dependent on treatment duration in rats.

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The IV administration of the potent sigma1-receptor ligand 4-phenyl-1-(4-phenylbutyl)piperidine (PPBP) provides neuroprotection against focal cerebral ischemia. We tested the hypothesis that prolonged, continuous administration of PPBP would provide further neuroprotection in a rat model of

Quantitative determination of the NMDA antagonist cis-4-phosphonomethyl-2-piperidine carboxylic acid (CGS 19755) in human plasma using capillary gas chromatography/mass spectrometry.

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An analytical method has been developed and validated for the quantitative determination of the N-methyl-D-aspartate (NMDA) antagonist cis-4-phosphonomethyl-2-piperidine carboxylic acid (CGS 19755) in human plasma. It is a member of a new class of compounds with the potential to be neuroprotective

Synthesis and biological activity of novel tert-amylphenoxyalkyl (homo)piperidine derivatives as histamine H3R ligands.

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As a continuation of our search for novel histamine H3 receptor ligands a series of twenty new tert-amyl phenoxyalkylamine derivatives (2-21) was synthesized. Compounds of four to eight carbon atoms spacer alkyl chain were evaluated on their binding properties at human histamine H3 receptor (hH3R).

Neuroprotective effect of sigma(1)-receptor ligand 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP) is linked to reduced neuronal nitric oxide production.

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OBJECTIVE The potent final sigma(1)-receptor ligand 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP) provides neuroprotection in experimental stroke. We tested the hypothesis that PPBP attenuates striatal tissue damage after middle cerebral artery occlusion (MCAO) by a mechanism involving reduction of

4-(Tetrazolylalkyl)piperidine-2-carboxylic acids. Potent and selective N-methyl-D-aspartic acid receptor antagonists with a short duration of action.

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Prijava / prijava

We have prepared a series of cis-4-(tetrazolylakyl)piperidine-2-carboxylic acids as potent and selective N-methyl-D-aspartic acid (NMDA) receptor antagonists. NMDA antagonists may prove to be useful therapeutic agents, for instance, as anticonvulsants, in the treatment of neurodegenerative disorders

Sigma receptor ligand 4-phenyl-1-(4-phenylbutyl)-piperidine modulates neuronal nitric oxide synthase/postsynaptic density-95 coupling mechanisms and protects against neonatal ischemic degeneration of striatal neurons.

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In adult stroke models, 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP), a sigma receptor agonist, attenuates activity of neuronal nitric oxide synthase (nNOS), blunts ischemia-induced nitric oxide production, and provides neuroprotection. Here, we tested the hypothesis that PPBP attenuates neuronal

Novel naphthyloxy derivatives - Potent histamine H3 receptor ligands. Synthesis and pharmacological evaluation.

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A series of 1- and 2-naphthyloxy derivatives were synthesized and evaluated for histamine H3 receptor affinity. Most compounds showed high affinities with Ki values below 100 nM. The most potent ligand, 1-(5-(naphthalen-1-yloxy)pentyl)azepane (11) displayed high affinity for the histamine H3

Synthesis, Molecular Modeling of Novel Substituted Pyridazinones and Their Vasorelaxant activities.

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Hypertension, one of the most common cardiovascular diseases that can cause coronary disease, stroke, myocardial infarction and sudden death, it is the major contributor to cardiac failure as well as renal insufficiency.As there are many cardio-active

Fibroblast growth factor receptor modulators employing diamines with reduced phospholipidosis-inducing potential

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SUN13837 (1), a fibroblast growth factor receptor modulator, has been an attractive candidate for treating neurodegenerative diseases. However, one of its metabolites, N-benzyl-4-(methylamino)piperidine (BMP), turned out to possess phospholipidosis-inducing potential (PLIP) in vitro. To obtain

Enzymatic and solid-phase synthesis of new donepezil-based L- and d-glutamic acid derivatives and their pharmacological evaluation in models related to Alzheimer's disease and cerebral ischemia.

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Previously, we have described N-Bz-L-Glu[NH-2-(1-benzylpiperidin-4-yl)ethyl]-O-nHex (IQM9.21, L-1) as an interesting multifunctional neuroprotective compound for the potential treatment of neurodegenerative diseases. Here, we describe new derivatives and different synthetic routes, such as

CGS 19755 (Selfotel): A Novel Neuroprotective Agent Against CNS Injury.

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The hypothesis that excitoxicity is a mechanism of damage following different types of cerebral injury including global and focal ischemia (34), and head and spinal cord trauma (6,7,9,25) has been supported by numerous findings. During ischemia for example, glutamate neurotoxicity is mediated in

Synthesis of a series of 4-benzyloxyaniline analogues as neuronal N-type calcium channel blockers with improved anticonvulsant and analgesic properties.

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In this article, the rationale for the design, synthesis, and biological evaluation of a series of N-type voltage-sensitive calcium channel (VSCC) blockers is described. N-Type VSCC blockers, such as ziconotide, have shown utility in several models of stroke and pain. Modification of the previously

Synthesis of 1,4,7,8,9,10-hexahydro-9-methyl-6-nitropyrido[3,4-f]- quinoxaline-2,3-dione and related quinoxalinediones: characterization of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (and N-methyl-D-aspartate) receptor and anticonvulsant activity.

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Prijava / prijava

Four related series of substituted quinoxalinediones containing angular fused-piperidine rings have been synthesized as alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor antagonists with potential as neuroprotective agents, primarily for acute therapy immediately following a

Ifenprodil and SL 82.0715 as cerebral anti-ischemic agents. I. Evidence for efficacy in models of focal cerebral ischemia.

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Prijava / prijava

Recent studies have strongly implicated the excitatory neurotransmitter glutamate in the cascade of pathological mechanisms that cause neuronal loss after certain types of brain ischemia. The neurotoxic effects of glutamate are mediated, at least in global ischemia, via NMDA receptors. In the

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