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.
High-Affinity, Non-Nucleotide-Derived Competitive Antagonists of Platelet P2Y12 Receptors
摘要:
Anthraquinone derivatives related to the moderately potent, nonselective P2Y(12) receptor antagonist reactive blue 2 (6) have been synthesized and optimized with respect to P2Y(12) receptor affinity. A radioligand binding assay utilizing human blood platelet membranes and the P2Y(12) receptor-selective antagonist radioligand [H-3]2-propylthioadenosine-5'-adenylic acid (1,1-dichloro-1-phosphonomethyl-1-phosphonyl) anhydride ([H-3]PSB-0413) was applied for compound testing. 1-Amino-2-sulfoanthraquinone derivatives bearing a (p-phenylamino)anilino substitution in the 4-position and an additional acidic function in the meta-position of the aniline ring showed high P2Y(12) receptor affinity. These new anthraquinone derivatives became accessible by a recently developed copper(0)-catalyzed Ullmann coupling reaction of 1-amino-4-bromoanthraquinone derivatives with anilines in phosphate buffer under microwave irradiation. The most potent compounds exhibited K-i values of 24.9 nM (1-amino-4-[4-phenylamino-3-sulfophenylamino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, PSB-0739, 39), and 2 1.0 nM (1-amino-4-[4-phenylamino-3-carboxyphenylamino]- 9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, PSB-0702, 41), respectively. 1-Amino-2-sulfo-4-anilinoanthraquinone derivatives appeared to be noncytotoxic, as shown for selected derivatives at two human cell lines (melanoma and astrocytoma). Compounds 39 and 41 represent new lead structures for the development of antithrombotic drugs.
Combinatorial synthesis of anilinoanthraquinone derivatives and evaluation as non-nucleotide-derived P2Y2 receptor antagonists
作者:Stefanie Weyler、Younis Baqi、Petra Hillmann、Marko Kaulich、Andrea M. Hunder、Ingrid A. Müller、Christa E. Müller
DOI:10.1016/j.bmcl.2007.10.082
日期:2008.1
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 P2Y(2) receptors. 4-Phenylamino-substituted 1-amino-2-sulfoanthraquinones, for example, 1-amino-4-(2-methoxyphenyl)-2-sulfoanthraquinone (PSB-716), were potent P2Y(2) antagonists with IC50 values in the low micromolar range. (C) 2007 Elsevier Ltd. All rights reserved.
ADAMEK M.; POSKOCIL J.; BRUN M.; KULIC J., CHEM. PRUM., 1978, 28, NO 8, 423-425
作者:ADAMEK M.、 POSKOCIL J.、 BRUN M.、 KULIC J.
DOI:——
日期:——
High-Affinity, Non-Nucleotide-Derived Competitive Antagonists of Platelet P2Y<sub>12</sub> Receptors
作者:Younis Baqi、Kerstin Atzler、Meryem Köse、Markus Glänzel、Christa E. Müller
DOI:10.1021/jm9003297
日期:2009.6.25
Anthraquinone derivatives related to the moderately potent, nonselective P2Y(12) receptor antagonist reactive blue 2 (6) have been synthesized and optimized with respect to P2Y(12) receptor affinity. A radioligand binding assay utilizing human blood platelet membranes and the P2Y(12) receptor-selective antagonist radioligand [H-3]2-propylthioadenosine-5'-adenylic acid (1,1-dichloro-1-phosphonomethyl-1-phosphonyl) anhydride ([H-3]PSB-0413) was applied for compound testing. 1-Amino-2-sulfoanthraquinone derivatives bearing a (p-phenylamino)anilino substitution in the 4-position and an additional acidic function in the meta-position of the aniline ring showed high P2Y(12) receptor affinity. These new anthraquinone derivatives became accessible by a recently developed copper(0)-catalyzed Ullmann coupling reaction of 1-amino-4-bromoanthraquinone derivatives with anilines in phosphate buffer under microwave irradiation. The most potent compounds exhibited K-i values of 24.9 nM (1-amino-4-[4-phenylamino-3-sulfophenylamino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, PSB-0739, 39), and 2 1.0 nM (1-amino-4-[4-phenylamino-3-carboxyphenylamino]- 9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, PSB-0702, 41), respectively. 1-Amino-2-sulfo-4-anilinoanthraquinone derivatives appeared to be noncytotoxic, as shown for selected derivatives at two human cell lines (melanoma and astrocytoma). Compounds 39 and 41 represent new lead structures for the development of antithrombotic drugs.
Efficient and mild deamination procedure for 1-aminoanthraquinones yielding a diverse library of novel derivatives with potential biological activity
作者:Younis Baqi、Christa E. Müller
DOI:10.1016/j.tetlet.2012.09.011
日期:2012.12
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.