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Fan L, He M, Liu X, He F, Wu L, Yang G, Pan Z, Shi L, Wang C, Xu C. Direct access to carbamates via acylation of arylamines with dialkyl azodicarboxylates under metal-free conditions. Org Biomol Chem 2023; 21:9037-9048. [PMID: 37933527 DOI: 10.1039/d3ob01437a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A novel C-N coupling of various arylamines with dialkyl azodicarboxylates under metal-free conditions for the rapid assembly of carbamates has been achieved. This established protocol features mild reaction conditions, simple operation, broad substrate scope, moderate to excellent yields and good tolerance of functional groups. Moreover, the potential synthetic utility of products was exemplified by a series of intriguing chemical operations.
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Affiliation(s)
- Liangxin Fan
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Mengyang He
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xinyuan Liu
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Fangyu He
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Lulu Wu
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Guoyu Yang
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zhenliang Pan
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Lijun Shi
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Caixia Wang
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
| | - Cuilian Xu
- Department of Chemical Biology, School of Sciences, Henan Agricultural University, Zhengzhou 450002, China.
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Baykova SO, Geyl KK, Baykov SV, Boyarskiy VP. Synthesis of 3-(Pyridin-2-yl)quinazolin-2,4(1 H,3 H)-diones via Annulation of Anthranilic Esters with N-pyridyl Ureas. Int J Mol Sci 2023; 24:ijms24087633. [PMID: 37108796 PMCID: PMC10142796 DOI: 10.3390/ijms24087633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
A new route for the synthesis of quinazolin-2,4(1H,3H)-diones and thieno [2,3-d]pyrimidine-2,4(1H,3H)-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 N-aryl-N'-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.
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Affiliation(s)
- Svetlana O Baykova
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg 199034, Russia
| | - Kirill K Geyl
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg 199034, Russia
| | - Sergey V Baykov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg 199034, Russia
| | - Vadim P Boyarskiy
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., Saint Petersburg 199034, Russia
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Geyl KK, Baykov SV, Kasatkina SO, Savko PY, Boyarskiy VP. Reaction of coordinated isocyanides with substituted N-(2-pyridyl) ureas as a route to new cyclometallated Pd(II) complexes. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kasatkina SO, Geyl KK, Baykov SV, Novikov MS, Boyarskiy VP. “Urea to Urea” Approach: Access to Unsymmetrical Ureas Bearing Pyridyl Substituents. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Svetlana O. Kasatkina
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Kirill K. Geyl
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Sergey V. Baykov
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Mikhail S. Novikov
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Vadim P. Boyarskiy
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
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Synthesis, Structure, and Antiproliferative Action of 2-Pyridyl Urea-Based Cu(II) Complexes. Biomedicines 2022; 10:biomedicines10020461. [PMID: 35203671 PMCID: PMC8962293 DOI: 10.3390/biomedicines10020461] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/29/2022] [Accepted: 02/14/2022] [Indexed: 02/06/2023] Open
Abstract
Relying on a recently suggested protocol that furnishes convenient access to variously substituted 2-pyridyl ureas, twelve hitherto unknown Cu(II) complexes have been synthesized in the present work and their structures were evaluated by elemental analysis, HRMS, IR spectroscopy, and X-ray diffraction study. Two structural motifs ([Cu(L)2Cl]+[Cl]− or (Cu(L)2Cl2) depending on the substitution pattern on the 2-pyridine fragment were revealed. In addition, antiproliferative action of the obtained compounds have been investigated against lung cancer cell lines (A549, NCI-H460, NCI-H1975), and healthy WI-26 VA4 cells were used to monitor non-specific cytotoxicity. Two nitro-group substituted complexes Cu(U3)2Cl2 (IC50 = 39.6 ± 4.5 μM) and Cu(U11)2Cl2 (IC50 = 33.4 ± 3.8 μM) demonstrate enhanced activity against the drug resistant NCI-H1975 cells with moderate selectivity toward normal WI-26 VA4 cells. The antiproliferative mechanism of cell death underlying the growth inhibitory effect of the synthesized complexes was studied via additional experiments, including the cell cycle analysis and the apoptosis induction test. Reassuringly, certain 2-pyridyl urea-based Cu(II) complexes exerted cell line-specific antiproliferative effect which renders them valuable starting points for further unveiling the anticancer potential of this class of coordination compounds.
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Dobrynin MV, Kasatkina SO, Baykov SV, Savko PY, Antonov NS, Mikherdov AS, Boyarskiy VP, Islamova RM. Cyclometallated Platinum(II) Complexes for Obtaining Phenyl-Containing Silicone Rubbers via Catalytic Hydrosilylation Reaction. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s107036322201011x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khramtsova EE, Lystsova EA, Khokhlova EV, Dmitriev MV, Maslivets AN. Amination of 5-Spiro-Substituted 3-Hydroxy-1,5-dihydro-2 H-pyrrol-2-ones. Molecules 2021; 26:molecules26237179. [PMID: 34885757 PMCID: PMC8658906 DOI: 10.3390/molecules26237179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
The 3-hydroxy-1,5-dihydro-2H-pyrrol-2-one motif is a valuable scaffold in drug discovery. The replacement of the 3-oxy fragment in 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones-based compounds with a 3-amino one (3-amino analogs of 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones, 3-amino-1,5-dihydro-2H-pyrrol-2-ones) can play a crucial role in their biological effect. Thus, approaches to 3-amino-1,5-dihydro-2H-pyrrol-2-ones are of significant interest. We developed an approach to 5-spiro-substituted 3-amino-1,5-dihydro-2H-pyrrol-2-ones that could not be obtained using previously reported approaches (reactions of 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones with amines). The developed approach is based on the thermal decomposition of 1,3-disubstituted urea derivatives of 5-spiro-substituted 3-hydroxy-1,5-dihydro-2H-pyrrol-2-ones, which were prepared via their reaction with carbodiimides.
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