2-Arylureidobenzoic Acids: Selective Noncompetitive Antagonists for the Homomeric Kainate Receptor Subtype GluR5
摘要:
A series of 2-arylureidobenzoic acids (AUBAs) was prepared by a short and effective synthesis, and the pharmacological activity at glutamate receptors was evaluated in vitro and in vivo. The compounds showed noncompetitive antagonistic activity at the kainate receptor subtype GluR5. The most potent compounds showed more than 50-fold selectivity for GluR5 compared to GluR6 and the AMPA receptor subtypes GluR1-4. The structure-activity relationships for the AUBAs showed distinct structural requirements for the substituents on the two aromatic ring systems. Only para-substituents were tolerated on the benzoic acid moiety (ring A), whereas ring B tolerated a variety of substituents, but with a preference for lipophilic substituents. The most potent compounds had a 4-chloro substituent on ring A and 3-chlorobenzene (6b), 2-naphthalene (8h), or 2-indole (8k) as ring B and had IC50 values of 1.3, 1.2, and 1.2,muM, respectively, in a functional GluR5 assay. Compound 6c (IC50 = 4.8 muM at GluR5) showed activity in the in vivo ATPA rigidity test, indicating that 6c has better pharmacokinetic properties than 8h, which was inactive in this test. The AUBAs are the first example of a series of noncompetitive GluR5-selective antagonists and may prove to be important pharmacological tools and leads in the search for therapeutic glutamatergic agents.
Novel aryl ureido benzoic acid derivatives and their use
申请人:Valgeirsson Jon
公开号:US20060069255A1
公开(公告)日:2006-03-30
This invention relates to novel aryl ureido benzoic acid derivatives useful as selective and non-competitive antagonists of the ionotropic GluR5 receptor. Due to their biological activity, the aryl ureido derivatives of the invention are considered useful for treating diseases that are responsive to modulation of an aspartate or a glutamate receptor. Moreover the invention provides chemical compounds for use according to the invention, as well as pharmaceutical compositions comprising the chemical compounds, and methods of treating diseases or disorders or conditions responsive to modulation of an aspartate or a glutamate receptor.
Methods and compositions for restoring homeostatic capacity of a subject
申请人:Palo Alto Investors
公开号:US10835134B2
公开(公告)日:2020-11-17
Methods of restoring homeostatic capacity of a subject are provided. Aspects of the invention further include compositions, systems and devices for practicing the methods. The methods and compositions described herein find use in a variety of applications. Aspects of certain embodiments of the methods include modulating a subject's autonomic nervous system in a manner sufficient to restore the homeostatic capacity of the subject. Aspects of other embodiments of the invention include administering to the subject an amount of an apoptosis modulator effective to at least partially restore homeostatic function of the neuroendocrine system of the subject.
Treatment of diseases characterized by excessive or insufficient cell death
申请人:——
公开号:US20040077634A1
公开(公告)日:2004-04-22
The invention relates to the use of a compound that modulates the association of caspase-9 to Apaf-1 for the treatment of diseases characterized by excessive or insufficient cell death.
Compounds for use in disorders associated with mast cell or basophil acitvity
申请人:Madsen Siim Lars
公开号:US20050080112A1
公开(公告)日:2005-04-14
The present invention relates to the use certain compounds for the treatment, prevention or alleviation of a disorder or disease of a subject, which disorder or disease is responsive to modulation of the mast cell or basophil activity of such a subject.