Sulfur-containing 1,3-dialkylxanthine derivatives as selective antagonists at A1-adenosine receptors
摘要:
Sulfur-containing analogues of 8-substituted xanthines were prepared in an effort to increase selectivity or potency as antagonists at adenosine receptors. Either cyclopentyl or various aryl substituents were utilized at the 8-position, because of the association of these groups with high potency at A1-adenosine receptors. Sulfur was incorporated on the purine ring at positions 2 and/or 6, in the 8-position substituent in the form of 2- or 3-thienyl groups, or via thienyl groups separated from an 8-aryl substituent through an amide-containing chain. The feasibility of using the thienyl group as a prosthetic group for selective iodination via its Hg2+ derivative was explored. Receptor selectivity was determined in binding assays using membrane homogenates from rat cortex [( 3H]-N6-(phenylisopropyl)adenosine as radioligand] or striatum [3H]-5'-(N-ethylcarbamoyl)adenosine as radioligand] for A1- and A2-adenosine receptors, respectively. Generally, 2-thio-8-cycloalkylxanthines were at least as A1 selective as the corresponding oxygen analogue. 2-Thio-8-aryl derivatives tended to be more potent at A2 receptors than the oxygen analogue. 8-[4-[(Carboxy-methyl)oxyl] phenyl]-1,3-dipropyl-2-thioxanthine ethyl ester was greater than 740-fold A1 selective.
[EN] PURINE DERIVATIVES AS LIVER X RECEPTOR AGONISTS<br/>[FR] AGONISTES DES RECEPTEURS X DU FOIE
申请人:GLAXO GROUP LTD
公开号:WO2004009091A1
公开(公告)日:2004-01-29
The invention relates to methods for the treatment or prevention of an LXR mediated disease or condition, including cariovascular disease and atherosclerosis, novel compounds for use in such methods and pharmaceutical compositions comprising compounds for use in such methods.
PAK INHIBITORS FOR THE TREATMENT OF CELL PROLIFERATIVE DISORDERS
申请人:AFRAXIS, INC.
公开号:US20130116263A1
公开(公告)日:2013-05-09
Provided herein are PAK inhibitors and methods of utilizing PAK inhibitors for the treatment of cell proliferative disorders and/or CNS disorders.
本文提供了PAK抑制剂以及利用PAK抑制剂治疗细胞增殖性疾病和/或中枢神经系统疾病的方法。
Partial and full agonists of A1 adenosine receptors
申请人:——
公开号:US20030232783A1
公开(公告)日:2003-12-18
Disclosed are novel compounds that are partial and full A
1
adenosine receptor agonists, useful for treating various disease states, in particular tachycardia and atrial flutter, angina, myocardial infarction and hyperlipidemia.
Method of identifying partial adenosine A1 receptor agonists and their use in the treatment of arrhythmias
申请人:——
公开号:US20010008883A1
公开(公告)日:2001-07-19
The present invention provides a method for identifying parital adenosine A1 receptor agonists that are useful in the treatment of arrhythmias. Partial adenosine A1 receptor agonists and methods for using partial adenosine A1 receptor agonists to treat arrhythmias in mammals.
2-amino-3-aroyl-4,5 alkylthiophenes: agonist allosteric enhancers at human A1 adenosine receptors
申请人:——
公开号:US20030078248A1
公开(公告)日:2003-04-24
The present invention relates to a compound of formula (I):
1
wherein:
R
3
is selected from the group consisting of 1-napthyl, 2-napthyl and cycloalkylphenyl; and
R
4
and R
5
taken together form a ring having from 5 to 10 carbon atoms.
Additionally, the invention provides a therapeutic method for preventing or treating a pathological condition or symptom in a mammal subject, such as a human, wherein increased angiogenesis is desired, comprising administering to a mammal in need of such therapy an effective amount of the aforementioned thiophene selective adenosine A
1
allosteric enhancer.