587-18-8Relevant academic research and scientific papers
ISOINDOLINE COMPOUND, AND PREPARATION METHOD, PHARMACEUTICAL COMPOSITION, AND APPLICATION OF ISOINDOLINE COMPOUND
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Paragraph 0256-0259, (2021/10/22)
The present invention relates to an isoindoline compound as represented by general formula (I) and used as a CRBN regulator, and a preparation method, a pharmaceutical composition, and an application of the isoindoline compound. Specifically, a class of polysubstituted isoindoline compound provided in the present invention, as a class of CRL4CRBN E3 ubiquitin ligase regulator having a novel structure, has good anti-tumor activity and immunoregulatory activity, and can be used for preparing drugs for treating diseases associated with a CRL4CRBN E3 ubiquitin ligase.
Visible-Light Photoredox-Catalyzed and Copper-Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates
Yang, Shaoqiang,Chen, Miao,Tang, Pingping
supporting information, p. 7840 - 7844 (2019/05/15)
We report the development of photoredox-catalyzed and copper-promoted trifluoromethoxylation of arenediazonium tetrafluoroborates, with trifluoromethyl arylsulfonate (TFMS) as the trifluoromethoxylation reagent. This new method takes advantage of visible-light photoredox catalysis to generate the aryl radical under mild conditions, combined with copper-promoted selective trifluoromethoxylation. The reaction is scalable, tolerates a wide range of functional groups, and proceeds regioselectively under mild reaction conditions. Furthermore, mechanistic studies suggested that a Cs[Cu(OCF3)2] intermediate might be generated during the reaction.
Sequential Xanthalation and O-Trifluoromethylation of Phenols: A Procedure for the Synthesis of Aryl Trifluoromethyl Ethers
Yoritate, Makoto,Londregan, Allyn T.,Lian, Yajing,Hartwig, John F.
, p. 15767 - 15776 (2019/12/04)
Molecules containing trifluoromethoxyaryl groups are of interest in pharmaceutical, agrochemical, and materials science research, due to their unique physical and electronic properties. Many of the known methods to synthesize aryl trifluoromethyl ethers require harsh reagents and highly controlled reaction conditions and rarely occur when heteroaromatic units are present. The two-step O-trifluoromethylation of phenols via aryl xanthates is one such method that suffers from these drawbacks. Herein, we report a method for the synthesis of aryl trifluoromethyl ethers from phenols by the facile conversion of the phenol to the corresponding aryl and heteroaryl xanthates with newly synthesized imidazolium methylthiocarbonothioyl salts and conversion of these xanthates to the trifluoromethyl ethers under mild reaction conditions.
O-Trifluoromethylation of Phenols: Access to Aryl Trifluoromethyl Ethers by O-Carboxydifluoromethylation and Decarboxylative Fluorination
Zhou, Min,Ni, Chuanfa,He, Zhengbiao,Hu, Jinbo
supporting information, p. 3754 - 3757 (2016/08/16)
A new strategy for the synthesis of aryl trifluoromethyl ethers (ArOCF3) by combining O-carboxydifluoromethylation of phenols and subsequent decarboxylative fluorination is reported. This protocol allows easy construction of functionalized trifluoromethoxybenzenes and trifluoromethylthiolated arenes (ArSCF3) in moderate to good yields. Moreover, it utilizes accessible and inexpensive reagents sodium bromodifluoroacetate and SelectFluor II and, thus, is practical for O-trifluoromethylation of phenols. The potential application of this method is demonstrated with the preparation of a plant-growth regulator, Flurprimidol.
Addressing the Glycine-Rich Loop of Protein Kinases by a Multi-Facetted Interaction Network: Inhibition of PKA and a PKB Mimic
Lauber, Birgit S.,Hardegger, Leo A.,Asraful, Alam K.,Lund, Bjarte A.,Dumele, Oliver,Harder, Michael,Kuhn, Bernd,Engh, Richard A.,Diederich, Fran?ois
supporting information, p. 211 - 221 (2016/01/25)
Protein kinases continue to be hot targets in drug discovery research, as they are involved in many essential cellular processes and their deregulation can lead to a variety of diseases. A series of 32 enantiomerically pure inhibitors was synthesized and tested towards protein kinase A (PKA) and protein kinase B mimic PKAB3 (PKA triple mutant). The ligands bind to the hinge region, ribose pocket, and glycine-rich loop at the ATP site. Biological assays showed high potency against PKA, with Ki values in the low nanomolar range. The investigation demonstrates the significance of targeting the often neglected glycine-rich loop for gaining high binding potency. X-ray co-crystal structures revealed a multi-facetted network of ligand-loop interactions for the tightest binders, involving orthogonal dipolar contacts, sulfur and other dispersive contacts, amide-π stacking, and H-bonding to organofluorine, besides efficient water replacement. The network was analyzed in a computational approach.
Synthesis of trifluoromethyl ethers and difluoro(methylthio)methyl ethers by the reaction of dithiocarbonates with IF5-pyridine-HF
Inoue, Toshiya,Fuse, Chiaki,Hara, Shoji
, p. 48 - 52 (2015/11/10)
Trifluoromethyl ether and difluoro(methylthio)methyl ether of phenols and aliphatic alcohols were selectively synthesized from the corresponding dithiocarbonates. When IF5-pyridine-HF was used alone in the reaction of the dithiocarbonate, the difluoro(methylthio)methyl ether was selectively formed. On the other hand, by the additional use of Et3N-6HF with IF5-pyridine-HF, trifluoromethyl ether was formed selectively. Various functional groups such as ester, ether, amide, and acetonide could tolerate the reaction conditions, and various functionalized difluoro(methylthio)methyl ethers and trifluoromethyl ethers were synthesized.
Silver-mediated trifluoromethoxylation of aryl stannanes and arylboronic acids
Huang, Chenghong,Liang, Theresa,Harada, Shinji,Lee, Eunsung,Ritter, Tobias
supporting information; experimental part, p. 13308 - 13310 (2011/10/10)
A silver-mediated cross-coupling of trifluoromethoxide with aryl stannanes and arylboronic acids to give aryl trifluoromethyl ethers is reported. This is the first report of a transition-metal-mediated Caryl-OCF3 bond formation.
