Synthesis and biological evaluation of new 4-arylpiperidines and 4-aryl-4-piperidinols: dual Na+ and Ca2+ channel blockers with reduced affinity for dopamine D2 receptors
摘要:
A series of novel 4-arylpiperidines and 4-aryl-4-piperidinols (2a-f, 3a f and 4a-f) wits synthesized and evaluated for blocking effects on both neuronal Na+ and T-type Ca2+ channels and binding affinity for dopamine D-2 receptors. Most or the compounds blockaded both ion channels with potency greater than or equal to flunarizine Ia which was adopted as a reference standard. In addition, these compounds had significantly reduced affinity for dopamine D-2 receptors which is common in this class of structure. Compounds 2a-f, 3a-f and 4a-f exhibited potent anticonvulsant effects following systemic (ip) administration on audiogenic seizures in DBA/2 mice, indicating their excellent brain permeability. The neuroprotective activity of 2a, 3a and 4a was also assessed in a transient middle cerebral artery Occlusion (MCAO) model. These Compounds significantly reduced neuronal damage without affecting ischemic hyperthemia, while flunarizine Ia produced only minor reductions. In particular. 4a had 1.7-fold the potency in this MCAO model but only 1/20 the affinity for dopamine D-2 receptors of 1a. The Superposition of 2a, 3a and 4a on the basis of analyses of systematic conformation and similar structure has revealed that the cinnamyl, phenacyl and phenoxy-propanol groups are likely to be structurally and biologically equivalent. Moreover, the Superposition of 2a and 2f shows that diphenyl ether and biphenyl groups occupy a similar space, suggesting that both groups act as a bioisostere for the blockade of ion channels: however, this is not the case for dopamine D-2 receptors since only biphenyl Compounds such as 2f had high affinity similar to flunarizine Ia. Compound 4a (SUN N5030) has a good pharmacological profile and may be Useful in the alleviation and treatment or ischemic diseases. (C) 2001 Elsevier Science Ltd. All rights reserved.
Base catalyzed Mitsunobu reactions as a tool for the synthesis of aryl sec-alkyl ethers
摘要:
A facile and versatile method for the synthesis of aryl sec-alkyl ethers from phenols with alcohols in the presence of base via a Mitsunobu reaction is described. (c) 2007 Elsevier Ltd. All rights reserved.
[EN] GLYCOLATE OXIDASE INHIBITORS FOR THE TREATMENT OF DISEASE<br/>[FR] INHIBITEURS DE GLYCOLATE OXYDASE POUR LE TRAITEMENT D'UNE MALADIE
申请人:BIOMARIN PHARM INC
公开号:WO2020257487A1
公开(公告)日:2020-12-24
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with a defect in glyoxylate metabolism, for example a disease or disorder associated with the enzyme glycolate oxidase (GO) or alterations in oxalate metabolism. Such diseases or disorders include, for example, disorders of glyoxylate metabolism, including primary hyperoxaluria, that are associated with production of excessive amounts of oxalate.
[EN] CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE<br/>[FR] INHIBITEURS DE LA CÉRAMIDE GALACTOSYLTRANSFÉRASE POUR LE TRAITEMENT DE MALADIES
申请人:BIOMARIN PHARM INC
公开号:WO2017214505A1
公开(公告)日:2017-12-14
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.
A 2-pyridone compound represented by the formula [1]:
wherein in the formula [1],
the ring represented by A represents a benzene ring or a pyridine ring,
X represents any of the structures represented by the formulas [3] shown below:
V represents a single bond or a lower alkylene group, and
W represents a single bond, an ether bond or a lower alkylene group (wherein the lower alkylene group may contain an ether bond)},
a tautomer or stereoisomer of the compound, a pharmaceutically acceptable salt thereof, or a solvate thereof is a compound that has an excellent GK activating effect and is useful as a pharmaceutical.
The invention provides new heterocyclic compounds having the general formula (I)
wherein A, L
1
, X, m, n and R
1
to R
4
are as described herein, compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds.
New azetidine derivatives, pharmaceutical compositions and uses thereof
申请人:FLECK Martin
公开号:US20130172316A1
公开(公告)日:2013-07-04
The invention relates to new azetidine derivatives of the formula I
to their use as medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.