» Articles » PMID: 37108796

Synthesis of 3-(Pyridin-2-yl)quinazolin-2,4(13)-diones Via Annulation of Anthranilic Esters with -pyridyl Ureas

Overview
Journal Int J Mol Sci
Publisher MDPI
Date 2023 Apr 28
PMID 37108796
Authors
Affiliations
Soon will be listed here.
Abstract

A new route for the synthesis of quinazolin-2,4(13)-diones and thieno [2,3-]pyrimidine-2,4(1,3)-diones substituted by pyridyl/quinolinyl moiety in position 3 has been developed. The proposed method concluded in an annulation of substituted anthranilic esters or 2-aminothiophene-3-carboxylates with 1,1-dimethyl-3-(pyridin-2-yl) ureas. The process consists of the formation of -aryl-'-pyridyl ureas followed by their cyclocondensation into the corresponding fused heterocycles. The reaction does not require the use of metal catalysts and proceeds with moderate to good yields (up to 89%). The scope of the method is more than 30 examples, including compounds with both electron-withdrawing and electron-donating groups, as well as diverse functionalities. At the same time, strong electron-acceptor substituents in the pyridine ring of the starting ureas reduce the product yield or even prevent the cyclocondensation step. The reaction can be easily scaled to gram quantities.

References
1.
Dong X, Ma P, Zhang T, Jalani H, Li G, Lu H . Iridium-Catalyzed C-H Amination of Weinreb Amides: A Facile Pathway toward Anilines and Quinazolin-2,4-diones. J Org Chem. 2020; 85(20):13096-13107. DOI: 10.1021/acs.joc.0c01789. View

2.
El-Adl K, El-Helby A, Sakr H, El-Hddad S . Design, synthesis, molecular docking, and anticancer evaluations of 1-benzylquinazoline-2,4(1H,3H)-dione bearing different moieties as VEGFR-2 inhibitors. Arch Pharm (Weinheim). 2020; 353(8):e2000068. DOI: 10.1002/ardp.202000068. View

3.
Falsini M, Squarcialupi L, Catarzi D, Varano F, Betti M, Di Cesare Mannelli L . 3-Hydroxy-1H-quinazoline-2,4-dione as a New Scaffold To Develop Potent and Selective Inhibitors of the Tumor-Associated Carbonic Anhydrases IX and XII. J Med Chem. 2017; 60(14):6428-6439. DOI: 10.1021/acs.jmedchem.7b00766. View

4.
Lee S, Xing J, Catlett I, Adamczyk R, Griffies A, Liu A . Safety, pharmacokinetics, and pharmacodynamics of BMS-986142, a novel reversible BTK inhibitor, in healthy participants. Eur J Clin Pharmacol. 2017; 73(6):689-698. PMC: 5423977. DOI: 10.1007/s00228-017-2226-2. View

5.
Boshta N, El-Essawy F, Alshammari M, Noreldein S, Darwesh O . Discovery of Quinazoline-2,4(1,3)-Dione Derivatives as Potential Antibacterial Agent: Design, Synthesis, and Their Antibacterial Activity. Molecules. 2022; 27(12). PMC: 9228007. DOI: 10.3390/molecules27123853. View