Publications by Wee Han Ang | EPFL Graph Search

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Cisplatin [cis-diamminedichloroplatinum(II) (cis-DDP)] is one of the most successful anticancer agents effective against a wide range of solid tumors. However, its use is restricted by side effects and/or by intrinsic or acquired drug resistance. Here, we ...

Reaction of [Ru6C(CO)16]2− with an excess of AgX (X = Cl, Br or I) affords heteronuclear clusters of formula [{Ru6C(CO)16Ag2X}2]2− in 80% yield, which for X = I and X = ...

With a view to develop drugs that could resist hydrolysis in aq. media,organometallic arene-capped ruthenium(II) 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (RAPTA) complexes bearing chelating carboxylate ligands have been prepd. and studied. The new com ...

Two new aminophosphines, benzyl-N(Ph2P)(2) and 2-picolyl-N(Ph2P)(2), have been synthesized. Oxidation of the aminophosphines with either hydrogen peroxide, elemental sulfur and selenium gave the corresponding oxides, sulfides and selenides benzyl-N(Ph2P=E) ...

In order to utilize macromols. for drug targeting and delivery, a strategy to tether organometallic ruthenium-arene drugs to carrier protein mols. was developed. The approach involves the design of a drug fragment capable of conjugating to linker mols. on ...

The in vitro activity of a series of ruthenium clusters, [(η6-C6H6)(η6-C6Me6)2Ru3(μ-H)3(μ3-O)][BF4], [(η6-C6H6)(η6-1,4-iPrC6H4Me)(η6-C6Me6)Ru3(μ-H)3(μ3-O)][BF4], [(η6-C6H6)4Ru4(μ-H)4][BF4]2, [(η6-C6H5Me)4Ru4(μ-H)4][BF4]2 and [(η6-C6H6)4Ru4(μ-H)3(μ-OH)][Cl] ...

Ruthenium compounds have become promising alternatives to platinum drugs by displaying specific activities against different cancers and favourable toxicity and clearance properties. Nonetheless, their molecular targeting and mechanism of action are poorly ...

Highly stable palladium nanoparticles 5 nm diam., protected by an imidazolium-based ionic polymer in a nitrile-functionalized ionic liq., have been prepd. and characterized by TEM. These Pd nanoparticles are excellent precatalysts for Suzuki, Heck, and Sti ...

A series of nitrile-functionalized imidazolium salts (many of which are liquid at room temperature) have been prepared. The reactivity of these salts with PdCl2 has been studied, resulting in salts containing a tetrachloropalladate dianion or co ...

Anthracene derivatives of ruthenium(II) arene compounds with 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (pta) or a sugar phosphite ligand, viz., 3,5,6-bicyclophosphite1,2-O-isopropylidene-alpha-D-glucofuranoside, were prepared in order to evaluate their ...

A review. The systematic development of the RAPTA family of organometallic ruthenium(II) anticancer drugs contg. a monodentate 1,3,5-triaza-7-phosphatricyclo-[3.3.1.1]decane ligand and a h6-arene ligand is described. ...

A series of allyl-functionalized imidazolium salts are reported, including 1-allyl-3-ethylimidazolium iodide and 1-allyl-3-propylimidazolium iodide, which have m.ps. close to room temp. and show typical properties of supercooled fluids if heated above thei ...

Palladium(II) complexes with N,N-bis(diphenylphosphino)aniline ligands catalyze the Heck reaction between styrene and aryl bromides, affording stilbenes in good yield. The structures of two of the complexes used as pre-catalysts have been detd. by single-c ...

Reaction of the dimer [(η5-C5Me5)RhCl(μ2-Cl)]2 with 2 or 4 equiv of the water-soluble phosphine 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (pta) affords [Rh(η5-C5Me< ...

A series of ether-derivatized imidazolium halides have been prepd. and characterized. Contrary to literature reports, they are all cryst. solids and have m.ps. well above room temp. (50-100 °C). Single crystals of the imidazolium salts, obtained in situ by ...

The reaction of chloromethyl thiocyanate with 1-methylimidazole affords the imidazolium salt, 1-thiocyanomethyl-3-methylimidazolium chloride, [C1SCNmim]Cl (1a). Exchange of the chloride anion in 1a by [PF6] ...

The reaction of the iminobiphosphines RN[dbnd]>PPh2-PPh2, where R = C6H4(p-CN), C6H4(m-CN), C6H4(o-C6H5), C6F5 or C6

Electrospray ionization mass spectrometry allows a rapid characterization of the adducts formed between three novel anticancer ruthenium(II)-arene PTA compds. and horse heart cytochrome c or hen egg white lysozyme. Specific information on the nature of the ...

Double trouble: A hybrid org.-inorg. (organometallic) inhibitor was designed to target glutathione transferases. The metal center is used to direct protein binding, while the org. moiety acts as the active-site inhibitor (see picture). The mechanism of inh ...

Wee Han Ang

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A structure-based mechanism of cisplatin resistance mediated by glutathione transferase P1-1

Investigation into the formation of heteronuclear clusters of formula [ Ru6C(CO)16Ag2X 2]2- (X = Cl, Br or I)

Development of Organometallic Ruthenium-Arene Anticancer Drugs That Resist Hydrolysis

Synthesis of new aminophosphine complexes and their catalytic activities in C-C coupling reactions

Strategy To Tether Organometallic Ruthenium-Arene Anticancer Compounds to Recombinant Human Serum Albumin

Remarkable Anticancer Activity of Triruthenium-Arene Clusters Compared to Tetraruthenium-Arene Clusters

Ligand substitutions between ruthenium-cymene compounds can control protein versus DNA targeting and anticancer activity

Palladium nanoparticles stabilized by an ionic polymer and ionic liquid: A versatile system for C-C cross-coupling reactions

Development of nitrile-functionalized ionic liquids for C-C coupling reactions: implication of carbene and nanoparticle catalysts

Anthracene-Tethered Ruthenium(II) Arene Complexes as Tools To Visualize the Cellular Localization of Putative Organometallic Anticancer Compounds

Development of organometallic ruthenium(II) anticancer (RAPTA) drugs

A Supercooled Imidazolium Iodide Ionic Liquid as a Low-Viscosity Electrolyte for Dye-Sensitized Solar Cells

Application of N,N-bis(diphenylphosphino)aniline palladium(II) complexes as pre-catalysts in Heck coupling reactions

Rational design of platinum(IV) compounds to overcome glutathione-S-transferase mediated drug resistance

In Vitro Evaluation of Rhodium and Osmium RAPTA Analogues: The Case for Organometallic Anticancer Drugs Not Based on Ruthenium

Revisiting Ether-Derivatized Imidazolium-Based Ionic Liquids

Thiocyanate functionalised ionic liquids: synthesis, characterisation and reactivity

Complexation associated rearrangement of iminobiphosphines to diphosphinoamines

ESI-MS characterisation of protein adducts of anticancer ruthenium(II)-arene PTA (RAPTA) complexes

Rational Design of an Organometallic Glutathione Transferase Inhibitor