78510-27-7Relevant academic research and scientific papers
Development of Potent and Selective Antagonists for the UTP-Activated P2Y4 Receptor
Rafehi, Muhammad,Malik, Enas M.,Neumann, Alexander,Abdelrahman, Aliaa,Hanck, Theodor,Namasivayam, Vigneshwaran,Müller, Christa E.,Baqi, Younis
, p. 3020 - 3038 (2017/04/21)
P2Y4 is a Gq protein-coupled receptor activated by uridine-5′-triphosphate (UTP), which is widely expressed in the body, e.g., in intestine, heart, and brain. No selective P2Y4 receptor antagonist has been described so far. Therefore, we developed and optimized P2Y4 receptor antagonists based on an anthraquinone scaffold. Potency was assessed by a fluorescence-based assay measuring inhibition of UTP-induced intracellular calcium release in 1321N1 astrocytoma cells stably transfected with the human P2Y4 receptor. The most potent compound of the present series, sodium 1-amino-4-[4-(2,4-dimethylphenylthio)phenylamino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate (PSB-16133, 61) exhibited an IC50 value of 233 nM, selectivity versus other P2Y receptor subtypes, and is thought to act as an allosteric antagonist. A receptor homology model was built and docking studies were performed to analyze ligand-receptor interactions. Compound 64 (PSB-1699, sodium 1-amino-4-[4-(3-pyridin-3-ylmethylthio)phenylamino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate) represents the most selective P2Y4 receptor antagonist known to date. Compounds 61 and 64 are therefore anticipated to become useful tools for studying this scarcely investigated receptor.
ANTHRAQUINONE COMPOUNDS AND THEIR USES
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Page/Page column 29; 32, (2012/04/04)
The present invention relates to a compound comprising a substituted or unsubstituted anthraquinone, or a salt or isomer thereof, for use in treating a disorder caused by or associated with dysfunctional ion channel activity. The invention finds utility in the treatment of disorders associated with smooth muscle tone and contraction, such as arterial hypertension; myocardial infarction; faecal incontinence; constipation; gastro oesophageal reflux; impaired gastrointestinal passage; urinary incontinence; erectile dysfunction; and asthma.
Anthraquinone compounds and their uses
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Page/Page column 13-14, (2012/04/23)
This invention relates to compounds comprising a substituted or unsubstituted anthraquinone, or a salt or isomer thereof, for use in treating a disorder caused by or associated with dysfunctional ion channel activity; for example, BK Channel activity. The compounds of the present invention find utility in the treatment such as urinary incontinence, irritable bowel syndrome, diabetes and arterial hypertension, cardiovascular diseases including myocardial infarction, erectile dysfunction and airway constriction.
Development of potent and selective inhibitors of ecto-5′- nucleotidase based on an anthraquinone scaffold
Baqi, Younis,Lee, Sang-Yong,Iqbal, Jamshed,Ripphausen, Peter,Lehr, Anne,Scheiff, Anja B.,Zimmennann, Herbert,Bajorath, Jürgen,Müller, Christa E.
experimental part, p. 2076 - 2086 (2010/08/19)
ecto-5′-Nucleotidase (eN, CD73) plays a major role in controlling extracellular adenosine levels. eN inhibitors have potential as novel drugs, for example, for the treatment of cancer. In the present study, we synthesized and investigated a series of 55 anthraquinone derivatives as potential inhibitors of eN, 11 of which are novel compounds and another 11 of which had previously been described but have now been synthesized by an improved method. We identified several potent inhibitors of rat eN. The most potent compounds were l-amino-4-[4-fluoro-2-carboxyphenylamino]-9,10-dioxo-9,10-dihydroanthracene-2- sulfonate (45, PSB-0952, K1 = 260 nM) and 1-amino-4-[2- anthracenylamino]-9,10-dioxo-9,10dihydroanthracene-2-sulfonate (52, PSB-0963, 150 nM), with 52 being the most potent eN inhibitor described to date. Selected compounds were further characterized and found to exhibit a competitive mechanism of inhibition. Investigations of ecio-nucleoside triphosphate diphosphohydrolases (NTPDases) and the P2Y receptor subtypes P2Y2, P2Y4, P2Y6, and P2Y12 showed that compound 45 exhibited the highest degree of selectivity ( > 150-fold).
Novel P2Y12 receptor antagonists
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Page/Page column 34-35; 44, (2008/12/08)
The present invention relates to compounds of Formula I, in which A and B are independently CH2, O, S, NH, C=O, C=NH, C=S or C=N-OH; X is NH, O, S, C=O or CH2 and R1-R5 are as defined in claim 1, which are P2Y12 receptor antagonists and useful for treating, alleviating and/or preventing diseases and disorders related to P2Y12 receptor function as well as pharmaceutical compositions comprising such compounds and methods for preparing such compounds. The present invention is further directed to the use of these compounds, alone or in combination with other therapeutic agents, for the alleviation, prevention and/or treatment of diseases and disorders, especially the use as antithrombotic agents for inhibiting platelet aggregation.
Combinatorial synthesis of anilinoanthraquinone derivatives and evaluation as non-nucleotide-derived P2Y2 receptor antagonists
Weyler, Stefanie,Baqi, Younis,Hillmann, Petra,Kaulich, Marko,Hunder, Andrea M.,Mueller, Ingrid A.,Mueller, Christa E.
, p. 223 - 227 (2008/09/19)
A library of anilinoanthraquinone derivatives was synthesized by parallel Ullmann coupling reaction of bromaminic acid with aniline derivatives in solution using a compact parallel synthesizer. The products were purified by HPLC and evaluated as antagonists at mouse and human P2Y2 receptors. 4-Phenylamino-substituted 1-amino-2-sulfoanthraquinones, for example, 1-amino-4-(2-methoxyphenyl)-2-sulfoanthraquinone (PSB-716), were potent P2Y2 antagonists with IC50 values in the low micromolar range.
Rapid and efficient microwave-assisted copper(0)-catalyzed ullmann coupling reaction: General access to anilinoanthraquinone derivatives
Baqi, Younis,Muller, Christa E.
, p. 1271 - 1274 (2008/01/01)
Figure presented The synthesis of anilinoanthraquinones 3a-z was achieved by a new, Cu(0)-catalyzed, microwave-assisted Ullmann coupling reaction of bromaminic acid (1) with aniline derivatives 2a-z in phosphate buffer. Good to excellent isolated yields were obtained within only 2-20 min at 80-120 °C and 40-100 W. The new procedure provides the first general access to anilinoanthraquinones, furnishing a number of previously inaccessible compounds. It is superior to classical methods in all aspects, including yields, reaction time, and versatility.
