- Synthesis of rigid trichostatin A analogs as HDAC inhibitors
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New inhibitors of histone deacetylase (HDAC) have been synthesized and evaluated for their activity toward non small lung cancer cell line H661. Their design is based on indanone (or tetralone) systems leading to trichostatin A (TSA) analogs with limited conformational mobility. Molecular modelization at the AM1 level revealed that the conformations of indane-based analogs and TSA bound to HDAC like protein are similar. The synthesis of these new analogs was achieved by alkylation of an appropriate indanone (or tetralone) to introduce the side chain bearing a terminal ester group, the latter being a precursor of hydroxamic acid and aminobenzamide derivatives. Hydroxamic acids with the TSA side chain were found to be the most active compounds and the presence of the dimethylamino group on the phenyl ring turned out to be essential to achieve low micromolar activities against H661 cancer cells.
- Charrier, Cedric,Bertrand, Philippe,Gesson, Jean-Pierre,Roche, Joelle
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- Nickel-Catalyzed Domino Heck-Type Reactions Using Methyl Esters as Cross-Coupling Electrophiles
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While esters are frequently used as traditional electrophiles in substitution chemistry, their application in cross-coupling chemistry is still in its infancy. This work demonstrates that methyl esters can be used as coupling electrophiles in Ni-catalyzed Heck-type reactions through the challenging cleavage of the C(acyl)?O bond under relatively mild reaction conditions at either 80 or 100 °C. With the σ-NiII intermediate generated from the insertion of acyl NiII species into the tethered C=C bond, carbonyl-retentive products were formed by domino Heck/Suzuki–Miyaura coupling and Heck/reduction pathways when organoboron and mild hydride nucleophiles are used.
- Zheng, Yan-Long,Newman, Stephen G.
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supporting information
p. 18159 - 18164
(2019/11/13)
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- Extending the Substrate Scope in the Hydrogenation of Unfunctionalized Tetrasubstituted Olefins with Ir-P Stereogenic Aminophosphine-Oxazoline Catalysts
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Air-stable and readily available Ir-catalyst precursors modified with MaxPHOX-type ligands have been successfully applied in the challenging asymmetric hydrogenation of tetrasubstituted olefins under mild reaction conditions. Gratifyingly, these catalyst precursors are able to efficiently hydrogenate not only a range of indene derivatives (ee's up to 96%) but also 1,2-dihydronapthalene derivatives and acyclic olefins (ee's up to 99%), which both constitute the most challenging substrates for this transformation.
- Biosca, Maria,Salomó, Ernest,De La Cruz-Sánchez, Pol,Riera, Antoni,Verdaguer, Xavier,Pàmies, Oscar,Diéguez, Montserrat
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supporting information
p. 807 - 811
(2019/01/26)
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- Synthesizing method of indanone compound
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The invention discloses a synthesizing method of an indanone compound. The synthesizing method comprises the following steps of respectively adding a catalyst and an antioxidant into a reaction bottle, then adding a compound shown in a formula (2), adding a solvent, and reacting for 2 to 6h at the temperature of 70 to 120 DEG C under the argon protection atmosphere, so as to obtain the indanone compound, wherein the catalyst is selected from any one of Cu(OAc)2, CuCl2 (copper (II) chloride), CuBr2 (copper (II) bromide), CuO (copper oxide), CuF2 (copper fluoride), Cu(OTf) 2, Cu(OH)2 (copper hydroxide), Cu(NO3)2 (copper nitrate), CuCl (copper chloride), CuBr (copper bromide), CuI (cuprous iodide) and Cu2O (cuprous oxide); the oxidant is tert-butyl hydroperoxide; the solvent is toluene. The synthesizing method has the advantages that a novel concept of the indanone compound is provided; the copper catalyst is used, the price of copper is low, the reserve amount is rich, the environment-friendly effect is realized, and the hydroacylation reaction catalyzed by copper meets the requirements of green chemistry.
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Paragraph 0095; 0096; 0098-0101; 0102
(2018/11/04)
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- COMPOUNDS, COMPOSITIONS AND METHODS OF TREATING CANCER
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Disclosed are compounds of formulas I and II, in which R, R0, R1-R4, R7-R10, n, X, Y, Y', and E are as described herein, pharmaceutical compositions containing such compounds. The compounds and pharmaceutical compositions are for use in treating or preventing diseases, for example, cancer.
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- INDENYL COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, AND MEDICAL USES THEREOF
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Disclosed are compounds, for example, compounds of formula I, wherein R, R0, R1-R8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.
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- METHOD OF TREATING OR PREVENTING RAS-MEDIATED DISEASES
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Disclosed are compounds, for example, a compound of formula I, wherein R, R0, R1-R8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition for example, cancer, mediated by the ras gene.
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- Chemical compounds and processes
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Haloalkyl derivatives of aromatic compounds are prepared via reaction with dialkoxy or aralkoxy alkanes in the presence of a Lewis acid.
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- Indenylidene-3-acetic acid process for preparing indene acetic acids
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Process for preparing 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene)-indene-3-acetic acid by reacting fluorobenzene with an acid halide, to form an indanone, reaction of the indanone with a methylthio (or methylsulfinyl)benzyl compound to form 5-fluoro-2-methyl-1-(p-methylthiobenzyl) or (p-methylsulfinylbenzyl)-indene and reacting said indene with a glyoxylic acid. The invention also relates to intermediates thereof and processes for said intermediates.
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