- Development of LM98, a Small-Molecule TEAD Inhibitor Derived from Flufenamic Acid
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The YAP-TEAD transcriptional complex is responsible for the expression of genes that regulate cancer cell growth and proliferation. Dysregulation of the Hippo pathway due to overexpression of TEAD has been reported in a wide range of cancers. Inhibition of TEAD represses the expression of associated genes, demonstrating the value of this transcription factor for the development of novel anti-cancer therapies. We report herein the design, synthesis and biological evaluation of LM98, a flufenamic acid analogue. LM98 shows strong affinity to TEAD, inhibits its autopalmitoylation and reduces the YAP-TEAD transcriptional activity. Binding of LM98 to TEAD was supported by 19F-NMR studies while co-crystallization experiments confirmed that LM98 is anchored within the palmitic acid pocket of TEAD. LM98 reduces the expression of CTGF and Cyr61, inhibits MDA-MB-231 breast cancer cell migration and arrests cell cycling in the S phase during cell division.
- Mélin, Léa,Abdullayev, Shuay,Fnaiche, Ahmed,Vu, Victoria,González Suárez, Narjara,Zeng, Hong,Szewczyk, Magdalena M.,Li, Fengling,Senisterra, Guillermo,Allali-Hassani, Abdellah,Chau, Irene,Dong, Aiping,Woo, Simon,Annabi, Borhane,Halabelian, Levon,LaPlante, Steven R.,Vedadi, Masoud,Barsyte-Lovejoy, Dalia,Santhakumar, Vijayaratnam,Gagnon, Alexandre
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p. 2982 - 3002
(2021/08/03)
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- Rational design of agonists for bitter taste receptor TAS2R14: from modeling to bench and back
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Human bitter taste receptors (TAS2Rs) are a subfamily of 25 G protein-coupled receptors that mediate bitter taste perception. TAS2R14 is the most broadly tuned bitter taste receptor, recognizing a range of chemically diverse agonists with micromolar-range potency. The receptor is expressed in several extra-oral tissues and is suggested to have physiological roles related to innate immune responses, male fertility, and cancer. Higher potency ligands are needed to investigate TAS2R14 function and to modulate it for future clinical applications. Here, a structure-based modeling approach is described for the design of TAS2R14 agonists beginning from flufenamic acid, an approved non-steroidal anti-inflammatory analgesic that activates TAS2R14 at sub-micromolar concentrations. Structure-based molecular modeling was integrated with experimental data to design new TAS2R14 agonists. Subsequent chemical synthesis and in vitro profiling resulted in new TAS2R14 agonists with improved potency compared to the lead. The integrated approach provides a validated and refined structural model of ligand–TAS2R14 interactions and a general framework for structure-based discovery in the absence of closely related experimental structures.
- Di Pizio, Antonella,Waterloo, Lukas A. W.,Brox, Regine,L?ber, Stefan,Weikert, Dorothee,Behrens, Maik,Gmeiner, Peter,Niv, Masha Y.
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p. 531 - 542
(2019/07/03)
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- TEAD INHIBITORS AND USES THEREOF
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The present invention provides compounds, compositions thereof, and methods of using the same.
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Paragraph 00465; 00500; 00501
(2020/12/11)
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- Electrochemical Reductive Smiles Rearrangement for C-N Bond Formation
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A conceptually new and synthetically valuable radical Smiles rearrangement reaction is reported under undivided electrolytic conditions. This protocol employs an entirely new strategy for the electrochemical radical Smiles rearrangement. Remarkably, an amidyl radical generated from the cleavage of the N-O bond under reductive electrolytic conditions plays a crucial role in this transformation. Various hydroxylamine derivatives bearing different substituents are suitable in this electrochemical transformation, furnishing the corresponding amides in up to 86% yield.
- Chang, Xihao,Zhang, Qinglin,Guo, Chang
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supporting information
p. 10 - 13
(2019/01/04)
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- Formal Aniline Synthesis from Phenols through Deoxygenative N-Centered Radical Substitution
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Phenolic, lignin-derived substrates have emerged as desirable biorenewable chemical feedstocks for coupling reactions. A radical-mediated conversion of phenol derivatives to anilines is reported, using unfunctionalized hydroxamic acids as the N-centered radical source. The applicability of this triethyl phosphite mediated O-atom transfer approach, which tolerates a range of steric and electronic demands to naturally occurring phenols and lignin models, has been demonstrated in this work to access the corresponding aniline derivatives.
- Lardy, Samuel W.,Luong, Kristine C.,Schmidt, Valerie A.
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supporting information
p. 15267 - 15271
(2019/12/11)
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- Efficient Aryl Migration from an Aryl Ether to a Carboxylic Acid Group To Form an Ester by Visible-Light Photoredox Catalysis
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We have developed a highly efficient aryl migration from an aryl ether to a carboxylic acid group through retro-Smiles rearrangement by visible-light photoredox catalysis at ambient temperature. Transition metals and a stoichiometric oxidant and base are avoided in the transformation. Inspired by the high efficiency of this transformation and the fundamental importance of C?O bond cleavage, we developed a novel approach to the C?O cleavage of a biaryl ether to form two phenolic compounds, as demonstrated by a one-pot, two-step gram-scale reaction under mild conditions. The aryl migration exhibits broad scope and can be applied to the synthesis of pharmaceutical compounds, such as guacetisal. Primary mechanistic studies indicate that the catalytic cycle occurs by a reductive quenching pathway.
- Wang, Shao-Feng,Cao, Xiao-Ping,Li, Yang
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supporting information
p. 13809 - 13813
(2017/10/24)
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- Benzamide compounds as apo b secretion inhibitors
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The present invention relates to compounds of the formula (I) wherein R1 and R2 are each independently lower alkyl lower alkenyl, acyl, amino, lower alkoxy, lower cycloalkyloxy, aryl, aryloxy, sulfooxy, mercapto, sulfo, hydrogen, halogen, nitro, cyano or hydroxy, or may form a ring structure; Q1 is N or CH; L is optionally substituted unsaturated 3 to 10-membered heterocyclic group; X is optionally substituted monocyclic arylene or monocyclic heteroarylene; Y is -(A1)m-(A2)n-(A4)k-; Z is directbond, —CH2-, —NH— or —O—; and R is hydrogen or lower alkyl, or a salt thereof The compounds of the present invention inhibit apolipoprotein B (Apo B) secretion and are useful as a medicament for prophylactic and treatment of diseases or conditions resulting from elevated circulating levels of Apo B.
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- Substituted (2-Phenoxyphenyl)acetic Acids with Antiinflammatory Activity. 1
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The synthesis and antiinflammatory activity of a series of substituted (2-phenoxyphenyl)acetic acids are described.Initial screening in the adjuvant arthritis test showed that halogen substitution in the phenoxy ring enhanced activity considerably.Ulcerogenic potential, as measured by the minimum ulcerogenic dose (MUD), was low in almost all the acids tested. acetic acid possessed the most favorable combination of potency with low toxicity, including ulcerogenicity, and this compound is now in therapeutic use.
- Atkinson, David C.,Godfrey, Keith E.,Meek, Bernard,Saville, John F.,Stillings, Michael R.
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p. 1353 - 1360
(2007/10/02)
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