sodium 1-amino-9,10-dioxo-4-(phenylamino)-9,10-dihydroanthracene-2-sulfonate;C.I. acid blue 25;sodium;1-amino-4-anilino-2-sulfonatoanthracene-9,10-dione
Efficient and mild deamination procedure for 1-aminoanthraquinones yielding a diverse library of novel derivatives with potential biological activity
摘要:
A convenient in situ method is described for reductive removal of the amino group in position 1 of the anthraquinone (AQ) moiety. The reaction proceeds smoothly within a few minutes yielding novel AQ derivatives in excellent yields. Diazonium salt formation is followed by reduction with zinc in ethanol. The method has been applied to a variety of 1-amino-AQ derivatives. It allows access to a large library of new AQ derivatives which possess potential as pharmacological tools for studying purinergic signaling, and as potential drugs, for example, for the treatment of cancer and cardiovascular diseases. (C) 2012 Elsevier Ltd. All rights reserved.
Rapid and Efficient Microwave-Assisted Copper(0)-Catalyzed Ullmann Coupling Reaction: General Access to Anilinoanthraquinone Derivatives
作者:Younis Baqi、Christa E. Müller
DOI:10.1021/ol070102v
日期:2007.3.1
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 degrees C and 40-100 W. The new procedure provides the first generalaccess to anilinoanthraquinones, furnishing a number of previously inaccessible compounds. It is superior to classical methods in all aspects, including yields, reaction time
Development of Potent and Selective Antagonists for the UTP-Activated P2Y<sub>4</sub> Receptor
作者:Muhammad Rafehi、Enas M. Malik、Alexander Neumann、Aliaa Abdelrahman、Theodor Hanck、Vigneshwaran Namasivayam、Christa E. Müller、Younis Baqi
DOI:10.1021/acs.jmedchem.7b00030
日期:2017.4.13
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
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.
Structure–activity relationships of novel P2-receptor antagonists structurally related to Reactive Blue 2
作者:Markus Glänzel、Ralph Bültmann、Klaus Starke、August W. Frahm
DOI:10.1016/j.ejmech.2005.07.007
日期:2005.12
we have shown that Reactive Blue 2 (RB 2), one of the most widely used P2-receptor antagonists, displays only moderate affinity and does not discriminate between native P2X- and P2Y-receptor subtypes. In the present study we have pharmacologically evaluated a series of 15 synthesized and re-evaluated four commercially obtained and chromatographically purified RB 2 type anthraquinone derivatives on