- NOVEL COMPOUNDS SUITABLE FOR THE TREATMENT OF DYSLIPIDEMIA
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The present invention relates to compounds of the general formula (I), their tautomeric forms, their stereoisomers, their pharmaceutically acceptable salts, pharmaceutical compositions containing them, methods for their preparation, use of these compounds
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Page/Page column 38
(2021/07/02)
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- GLYCOLATE OXIDASE INHIBITORS FOR THE TREATMENT OF DISEASE
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Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with a defect in glyoxylate metabolism, for example a disease or disorder associated with the enzyme glycolate oxidase (GO) or alterations in oxalate metabolism. Such diseases or disorders include, for example, disorders of glyoxylate metabolism, including primary hyperoxaluria, that are associated with production of excessive amounts of oxalate.
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Paragraph 001445; 001446; 001517; 001518
(2021/01/22)
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- General Paradigm in Photoredox Nickel-Catalyzed Cross-Coupling Allows for Light-Free Access to Reactivity
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Self-sustained NiI/III cycles are established as a potentially general paradigm in photoredox Ni-catalyzed carbon–heteroatom cross-coupling reactions through a strategy that allows us to recapitulate photoredox-like reactivity in the absence of light across a wide range of substrates in the amination, etherification, and esterification of aryl bromides, the latter of which has remained, hitherto, elusive under thermal Ni catalysis. Moreover, the accessibility of esterification in the absence of light is especially notable because previous mechanistic studies on this transformation under photoredox conditions have unanimously invoked energy-transfer-mediated pathways.
- Nocera, Daniel G.,Qin, Yangzhong,Sun, Rui
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supporting information
p. 9527 - 9533
(2020/04/08)
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- Solar-driven tandem photoredox nickel-catalysed cross-coupling using modified carbon nitride
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Nickel-catalysed aryl amination and etherification are driven with sunlight using a surface-modified carbon nitride to extend the absorption of the photocatalyst into a wide range of the visible region. In contrast to traditional homogeneous photochemical methodologies, the lower cost and higher recyclability of the metal-free photocatalyst, along with the use of readily available sunlight, provides an efficient and sustainable approach to promote nickel-catalysed cross-couplings. This journal is
- Qin, Yangzhong,Martindale, Benjamin C. M.,Sun, Rui,Rieth, Adam J.,Nocera, Daniel G.
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p. 7456 - 7461
(2020/08/03)
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- INHIBITORS OF DIHYDROCERAMIDE DESATURASE FOR TREATING DISEASE
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Disclosed herein are dihydroceramide desaturase 1 (Des1) inhibitor compounds and compositions, which are useful in the treatment of diseases, such as metabolic disorders, where inhibition of Des1 is expected to be therapeutic to a patient. Methods of inhibition of Des1 activity in a human or animal subject are also provided.
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Paragraph 0728; 0729; 0730
(2019/08/20)
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- METHODS FOR FORMING ARYL CARBON-NITROGEN BONDS USING LIGHT AND PHOTOREACTORS USEFUL FOR CONDUCTING SUCH REACTIONS
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The disclosure relates to a method for forming aryl carbon-nitrogen bonds and to photoreactors useful in these and other light-driven reactions. The method comprises contacting an aryl halide with an amine in the presence of a Ni salt catalyst solution and an optional base, thereby forming a reaction mixture; exposing the reaction mixture to light under reaction condition sufficient to produce the aryl carbon-nitrogen bonds. In certain embodiments, the amine may be present in a molar excess to the aryl halide. In certain embodiments, the Ni salt catalyst solution includes a Ni(II) salt and a polar solvent, wherein the Ni(II) salt is dissolved in the polar solvent. In certain embodiments, the reactions conditions include holding the reaction mixture at between about room temperature and about 80° C. for between about 1 hour and about 20 hours such that at least about 50% yield is obtained.
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Paragraph 0097-0098; 0118-0119
(2019/11/22)
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- GLYCOLATE OXIDASE INHIBITORS FOR THE TREATMENT OF DISEASE
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Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme glycolate oxidase (GO). Such diseases or disorders include, for example, disorders of glyoxylate metabolism, including primary hyperoxaluria, that are associated with production of excessive amounts of oxalate.
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Paragraph 001487; 001488; 001489; 001559; 001560; 001561
(2019/07/17)
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- Energy Transfer to Ni-Amine Complexes in Dual Catalytic, Light-Driven C-N Cross-Coupling Reactions
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Dual catalytic light-driven cross-coupling methodologies utilizing a Ni(II) salt with a photocatalyst (PC) have emerged as promising methodologies to forge aryl C-N bonds under mild conditions. The recent discovery that the PC can be omitted and the Ni(II) complex directly photoexcited suggests that the PC may perform energy transfer (EnT) to the Ni(II) complex, a mechanistic possibility that has recently been proposed in other systems across dual Ni photocatalysis. Here, we report the first studies in this field capable of distinguishing EnT from electron transfer (ET), and the results are consistent with F?rster-type EnT from the excited state [Ru(bpy)3]Cl2 PC to Ni-amine complexes. The structure and speciation of Ni-amine complexes that are the proposed EnT acceptors were elucidated by crystallography and spectroscopic binding studies. With the acceptors known, quantitative F?rster theory was utilized to predict the ratio of quenching rate constants upon changing the PC, enabling selection of an organic phenoxazine PC that proved to be more effective in catalyzing C-N cross-coupling reactions with a diverse selection of amines and aryl halides.
- Kudisch, Max,Lim, Chern-Hooi,Thordarson, Pall,Miyake, Garret M.
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supporting information
p. 19479 - 19486
(2019/12/25)
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- C-N Cross-Coupling via Photoexcitation of Nickel-Amine Complexes
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C-N cross-coupling is an important class of reactions with far-reaching impacts across chemistry, materials science, biology, and medicine. Transition metal complexes can elegantly orchestrate diverse aminations but typically require demanding reaction conditions, precious metal catalysts, or oxygen-sensitive procedures. Here, we introduce a mild nickel-catalyzed C-N cross-coupling methodology that operates at room temperature using an inexpensive nickel source (NiBr2·3H2O), is oxygen tolerant, and proceeds through direct irradiation of the nickel-amine complex. This operationally robust process was employed for the synthesis of diverse C-N-coupled products (40 examples) by irradiating a solution containing an amine, an aryl halide, and a catalytic amount of NiBr2·3H2O with a commercially available 365 nm LED at room temperature without added photoredox catalyst and the amine substrate serving additional roles as the ligands and base. Density functional theory calculations and kinetic isotope effect experiments were performed to elucidate the observed C-N cross-coupling reactivity.
- Lim, Chern-Hooi,Kudisch, Max,Liu, Bin,Miyake, Garret M.
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supporting information
p. 7667 - 7673
(2018/05/31)
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- Electrochemically Enabled, Nickel-Catalyzed Amination
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Along with amide bond formation, Suzuki cross-coupling, and reductive amination, the Buchwald–Hartwig–Ullmann-type amination of aryl halides stands as one of the most employed reactions in modern medicinal chemistry. The work herein demonstrates the potential of utilizing electrochemistry to provide a complementary avenue to access such critical bonds using an inexpensive nickel catalyst under mild reaction conditions. Of note is the scalability, functional-group tolerance, rapid rate, and the ability to employ a variety of aryl donors (Ar?Cl, Ar?Br, Ar?I, Ar?OTf), amine types (primary and secondary), and even alternative X?H donors (alcohols and amides).
- Li, Chao,Kawamata, Yu,Nakamura, Hugh,Vantourout, Julien C.,Liu, Zhiqing,Hou, Qinglong,Bao, Denghui,Starr, Jeremy T.,Chen, Jinshan,Yan, Ming,Baran, Phil S.
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supporting information
p. 13088 - 13093
(2017/09/25)
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- ANTHELMINTIC AGENTS AND THEIR USE
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This invention is directed to compounds and salts that are generally useful as anthelmintic agents or as intermediates in processes for making anthelmintic agents. This invention also is directed to processes for making the compounds and salts, pharmaceut
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Page/Page column 127
(2010/11/03)
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- NIROGENOUS HETEROCYCLIC DERIVATIVES SUBSTITUTED WITH CYCLIC GROUPS
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It was found out that the nitrogen-containing heterocyclic derivative represented by the formula (I) specifically binds to a receptor of NR1/NR2B, and is used as a NR2B receptor antagonist. A compound represented by: wherein Z is N or CR1, A1 is a nitrogen-containing aromatic monocyclic group which is optionally substituted, a nitrogen-containing aromatic fused cyclic group which is optionally substituted etc., A2 is an aromatic hydrocarbon cyclic group or an aromatic heterocyclic group, each optionally having a substituent, R1, R2, Ra, Rb, Rc and Rd are each independently hydrogen, hydroxy, etc., w is 2 or 3, t is 1 or 2, X is -(CR3R4)m-, -CO(CR3R4)n-, -CONR5(CR3R4)n- etc., m is an integer of 1 to 4, n is an integer of 0 to 4, R3 and R4 are each independently hydrogen, halogen, hydroxy etc., and R5 is hydrogen or lower alkyl, or a pharmaceutically acceptable salt, or a solvate thereof.
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Page/Page column 63-64
(2008/12/08)
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