175596-01-7Relevant articles and documents
Development and Molecular Understanding of a Pd-Catalyzed Cyanation of Aryl Boronic Acids Enabled by High-Throughput Experimentation and Data Analysis
De Jesus Silva, Jordan,Bartalucci, Niccolò,Jelier, Benson,Grosslight, Samantha,Gensch, Tobias,Schünemann, Claas,Müller, Bernd,Kamer, Paul C. J.,Copéret, Christophe,Sigman, Matthew S.,Togni, Antonio
, (2021/11/10)
A synthetic method for the palladium-catalyzed cyanation of aryl boronic acids using bench stable and non-toxic N-cyanosuccinimide has been developed. High-throughput experimentation facilitated the screen of 90 different ligands and the resultant statistical data analysis identified that ligand σ-donation, π-acidity and sterics are key drivers that govern yield. Categorization into three ligand groups – monophosphines, bisphosphines and miscellaneous – was performed before the analysis. For the monophosphines, the yield of the reaction increases for strong σ-donating, weak π-accepting ligands, with flexible pendant substituents. For the bisphosphines, the yield predominantly correlates with ligand lability. The applicability of the designed reaction to a wider substrate scope was investigated, showing good functional group tolerance in particular with boronic acids bearing electron-withdrawing substituents. This work outlines the development of a novel reaction, coupled with a fast and efficient workflow to gain understanding of the optimal ligand properties for the design of improved palladium cross-coupling catalysts.
SUBSTITUTED 4-ARYL-1,4-DIHYDRO-1,6-NAPHTHYRIDINAMIDES AND USE THEREOF
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Paragraph 0349-0351, (2016/10/17)
1,6-Naphthyridine or 8-azaquinazoline derivatives (I) are new. 1,6-Naphthyridine or 8-azaquinazoline derivatives of formula (I) are new. D : N or CR 4>; R 4> : H, F, CF 3 or 1-4C alkyl; Ar : 5-R 5>-6-R 6>-2-methyl-4-oxo-4H-1-benzopyran-8-yl; 3-R 6>-4-R 8>-1-naphthyl optionally substituted with 1-3 of R 7>; 7-R 6>-8-R 8>-5-quinolinyl optionally substituted with 1-2 of R 7>; or 2-R 9>-3-R 10>-4-R 8>-5-R 6>-phenyl; R 5> : H, F, Cl, CN, NO 2, CF 3 or 1-4C alkyl; R 6> : H or F; R 7> : halo, 1-4C alkyl, CF 3, 1-4C alkoxy or OCF 3; R 8> : CN or NO 2; R 9> : H or halo; optionally fluorinated 1-4C alkyl, 1-4C alkoxy, 1-4C alkylthio of di(1-4C alkyl)amino; or phenyl optionally substituted with halo, 1-4C alkyl or CF 3; R 10> : H, halo or 1-4C alkyl; R 1> : optionally fluorinated 1-4C alkyl; R 2> : 1-6C alkyl optionally substituted with 3-7C cycloalkyl or F; or SO 2R 11>; R 11> : 1-6C alkyl, CF 3 or 3-7C cycloalkyl; or phenyl or heteroaryl optionally substituted with 1-2 of halo, CN, 1-4C alkyl, CF 3, 1-4C alkoxy and/or OCF 3; R 3> : H, F, CF 3 or 1-4C alkyl. An independent claim is also included for a process for preparing (I). [Image] ACTIVITY : Hypotensive; Cardiant; Hepatotropic; Nephrotropic; Cerebroprotective. MECHANISM OF ACTION : Mineralocorticoid receptor (MR) antagonist. 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2-methyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide had an IC 50 of 35 nM when tested on cells expressing a GAL4-MR chimera.
BICYCLOHETEROARYL-HETEROARYL-BENZOIC ACID COMPOUNDS AS RETINOIC ACID RECEPTOR BETA (RARβ) AGONISTS
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Page/Page column 71; 72, (2016/07/05)
The present invention pertains generally to the field of therapeutic compounds, and more specifically to certain bicycloheteroaryl-heteroaryl-benzoic acid compounds of the following formula (for convenience, collectively referred to herein as "BHBA compou