1
|
Gao C, Liu YZ, Wang YN, Zhang ZQ, Zhan ZP. Regioselective Synthesis of α-Quaternary Amino Acid Derivatives Enabled by Photoinduced Energy Transfer. J Org Chem 2024; 89:10393-10402. [PMID: 38953569 DOI: 10.1021/acs.joc.4c01153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
α-Quaternary amino acids have found application in many biologically relevant compounds and pharmaceuticals. Although there are many methods for the synthesis of α-quaternary amino acids, most of them are mainly realized with the aid of transition metals and complex ligands. We present herein a 2,7-Br-4CzIPN catalyzed regioselective alkylation of azlactones with redox-active esters via radical-radical couplings. Strikingly, this approach is devoid of any metal or additive and shows broad scope and superior sensitive functional group compatibility.
Collapse
Affiliation(s)
- Cai Gao
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P. R. China
| | - Yan-Zhi Liu
- Gulei Innovation Institute, Xiamen University, Zhangzhou, 363100, Fujian, P. R. China
| | - Yan-Ni Wang
- Gulei Innovation Institute, Xiamen University, Zhangzhou, 363100, Fujian, P. R. China
| | - Zhen-Qiang Zhang
- Yunnan Precious Metals Laboratory Co., Ltd., Kunming, 650106, Yunnan, P. R. China
| | - Zhuang-Ping Zhan
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, P. R. China
- Gulei Innovation Institute, Xiamen University, Zhangzhou, 363100, Fujian, P. R. China
| |
Collapse
|
2
|
Su J, Guo Y, Li C, Song Q. Difluorocarbene-induced [1,2]- and [2,3]-Stevens rearrangement of tertiary amines. Nat Commun 2024; 15:4794. [PMID: 38839757 PMCID: PMC11153565 DOI: 10.1038/s41467-024-49054-x] [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: 02/02/2024] [Accepted: 05/23/2024] [Indexed: 06/07/2024] Open
Abstract
The [1,2]- and [2,3]-Stevens rearrangements are one of the most fascinating chemical bond reorganization strategies in organic chemistry, and they have been demonstrated in a wide range of applications, representing a fundamental reaction tactic for the synthesis of nitrogen compounds in chemical community. However, their applicabilities are limited by the scarcity of efficient, general, and straightforward methods for generating ammonium ylides. Herein, we report a general difluorocarbene-induced tertiary amine-involved [1,2]- and [2,3]-Stevens rearrangements stemmed from in situ generated difluoromethyl ammonium ylides, which allows for the rearrangements of versatile tertiary amines bearing either allyl, benzyl, or propargyl groups, resulting in the corresponding products in one reaction under the same reaction conditions with a general way. Broad substrate scope, simple operation, mild reaction conditions and late-stage modification of natural products highlight the advantages of this strategy, meanwhile, this general rearrangement reaction is believed to bring opportunities for the transformations of nitrogen ylides and the assembly of valuable tertiary amines and amino acids. This will further enrich the reaction repertoire of difluorocarbene species, facilitate the development of reactions involving difluoromethyl ammonium salts, and provide an avenue for the development of this type of rearrangement reactions.
Collapse
Affiliation(s)
- Jianke Su
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Yu Guo
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Chengbo Li
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Material Sciences Engineering, Huaqiao University, Xiamen, Fujian, 361021, China.
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian, 350108, China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China.
| |
Collapse
|
3
|
Tian D, Li ZC, Sun ZH, He YP, Xu LP, Wu H. Catalytic Enantioselective Biltz Synthesis. Angew Chem Int Ed Engl 2023; 62:e202313797. [PMID: 37814442 DOI: 10.1002/anie.202313797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
The Biltz synthesis establishes straightforward access to 5,5-disubstituted (thio)hydantoins by combining a 1,2-diketone and a (thio)urea. Its appealing features include inherent atom and step economy together with the potential to generate structurally diverse products. However, control of the stereochemistry of this reaction has proven to be a daunting challenge. Herein, we describe the first example of enantioselective catalytic Biltz synthesis which affords more than 40 thiohydantoins with high stereo- and regio-control, irrespective of the symmetry of thiourea structure. A one pot synthesis of corresponding hydantoins is also documented. Remarkably, experimental studies and DFT calculations establish the reaction pathway and origin of stereoselectivity.
Collapse
Affiliation(s)
- Di Tian
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Zhuo-Chen Li
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Ze-Hua Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Yu-Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, Shandong, China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| |
Collapse
|
4
|
Kedzia K, Dobrzycki L, Wilczek M, Pulka-Ziach K. C-Terminal-Modified Oligourea Foldamers as a Result of Terminal Methyl Ester Reactions under Alkaline Conditions. Int J Mol Sci 2023; 24:ijms24076806. [PMID: 37047779 PMCID: PMC10094884 DOI: 10.3390/ijms24076806] [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: 03/22/2023] [Revised: 04/02/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
Hybrids of short oligourea foldamers with residues of α, β and γ-amino acids esters at the C-terminus were obtained and subjected to a reaction with LiOH. There are two possible transformations under such conditions, one of which is ester hydrolysis and the formation of a carboxylic group and the other is the cyclization reaction after abstraction of a proton from urea by a base. We have investigated this reaction with difference C-terminal residue structures, as well as under different work-up conditions, especially for oligourea hybrids with α-amino acid esters. For these compounds, an oligourea-hydantoin combination is the product of cyclization. The stability of the hydantoin ring under alkaline conditions has been alsotested. Furthermore, this work reports data related to the structure of C-terminal-modified oligourea foldamers in solution and, for one compound, in the solid state. Helical folding is preserved both for cyclized and linear modifications, with oligourea-acid hybrids appearing to be more conformationally stable, as they are stabilized by an additional intramolecular hydrogen bond in comparison to cyclic derivatives.
Collapse
Affiliation(s)
- Katarzyna Kedzia
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Lukasz Dobrzycki
- Laboratory of Advanced Crystal Engineering, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Marcin Wilczek
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | | |
Collapse
|
5
|
Xu P, Xie J, Wang DS, Zhang XP. Metalloradical approach for concurrent control in intermolecular radical allylic C-H amination. Nat Chem 2023; 15:498-507. [PMID: 36635599 PMCID: PMC10073309 DOI: 10.1038/s41557-022-01119-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 11/28/2022] [Indexed: 01/13/2023]
Abstract
Although they offer great potentials, the high reactivity and diverse pathways of radical chemistry pose difficult problems for applications in organic synthesis. In addition to the differentiation of multiple competing pathways, the control of various selectivities in radical reactions presents both formidable challenges and great opportunities. To regulate chemoselectivity and regioselectivity, as well as diastereoselectivity and enantioselectivity, calls for the formulation of conceptually new approaches and fundamentally different governing principles. Here we show that Co(II)-based metalloradical catalysis enables the radical chemoselective intermolecular amination of allylic C-H bonds through the employment of modularly designed D2-symmetric chiral amidoporphyrins with a tunable pocket-like environment as the supporting ligand. The reaction exhibits a remarkable convergence of regioselectivity, diastereoselectivity and enantioselectivity in a single catalytic operation. In addition to demonstrating the unique opportunities of metalloradical catalysis in controlling homolytic radical reactions, the Co(II)-catalysed convergent C-H amination offers a route to synthesize valuable chiral α-tertiary amines directly from an isomeric mixture of alkenes.
Collapse
Affiliation(s)
- Pan Xu
- Department of Chemistry, Merkert Chemistry Center, Boston College, Boston, MA, USA
| | - Jingjing Xie
- Department of Chemistry, Merkert Chemistry Center, Boston College, Boston, MA, USA
| | - Duo-Sheng Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Boston, MA, USA
| | - X Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Boston, MA, USA.
| |
Collapse
|
6
|
Xie L, Sun L, Wu P, Wang Z, Zhao C, Wu L, Li X, Gao Z, Liu W, Nie SZ. Organocatalytic cascade nucleophilic/aza-Michael addition reactions: metal-free catalytic strategy for the synthesis of hydantoins. Org Biomol Chem 2023; 21:2295-2300. [PMID: 36825465 DOI: 10.1039/d2ob01825j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lewis base-catalyzed cascade nucleophilic/aza-Michael addition reaction of N-alkoxy β-oxo-acrylamides with isocyanates has been developed to afford various highly functionalized hydantoin derivatives in 80-98% yields under mild reaction conditions. The intriguing features of this method include metal-free reaction conditions, low catalyst loading, broad substrate scope and short reaction time.
Collapse
Affiliation(s)
- Lei Xie
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Lei Sun
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Ping Wu
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Zhaoxue Wang
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Chenyi Zhao
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Lingang Wu
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Xiaojing Li
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Zhenzhen Gao
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Wanxing Liu
- The Non-Public Enterprise Service Center of Liaocheng, Liaocheng 252000, Shandong, P. R. China.
| | - Shao-Zhen Nie
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| |
Collapse
|
7
|
Langer MK, Rahman A, Dey H, Anderssen T, Blencke HM, Haug T, Stensvåg K, Strøm MB, Bayer A. Investigation of tetrasubstituted heterocycles reveals hydantoins as a promising scaffold for development of novel antimicrobials with membranolytic properties. Eur J Med Chem 2023; 249:115147. [PMID: 36739750 DOI: 10.1016/j.ejmech.2023.115147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/19/2022] [Accepted: 01/21/2023] [Indexed: 01/26/2023]
Abstract
Mimics of antimicrobial peptides (AMPs) have been proposed as a promising class of antimicrobial agents. We report the analysis of five tetrasubstituted, cationic, amphipathic heterocycles as potential AMP mimics. The analysis showed that the heterocyclic scaffold had a strong influence on the haemolytic activity of the compounds, and the hydantoin scaffold was identified as a promising template for drug lead development. Subsequently, a total of 20 hydantoin derivatives were studied for their antimicrobial potency and haemolytic activity. We found 19 of these derivatives to have very low haemolytic toxicity and identified three lead structures, 2dA, 6cG, and 6dG with very promising broad-spectrum antimicrobial activity. Lead structure 6dG displayed minimum inhibitory concentration (MIC) values as low as 1 μg/mL against Gram-positive bacteria and 4-16 μg/mL against Gram-negative bacteria. Initial mode of action (MoA) studies performed on the amine derivative 6cG, utilizing a luciferase-based biosensor assay, suggested a strong membrane disrupting effect on the outer and inner membrane of Escherichia coli. Our findings show that the physical properties and structural arrangement induced by the heterocyclic scaffolds are important factors in the design of AMP mimics.
Collapse
Affiliation(s)
- Manuel K Langer
- Department of Chemistry, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Ataur Rahman
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Hymonti Dey
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Trude Anderssen
- Department of Pharmacy, Faculty of Health Sciences, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Hans-Matti Blencke
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Tor Haug
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Klara Stensvåg
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway
| | - Morten B Strøm
- Department of Pharmacy, Faculty of Health Sciences, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway.
| | - Annette Bayer
- Department of Chemistry, UiT - The Arctic University of Norway, NO-9037, Tromsø, Norway.
| |
Collapse
|
8
|
Guerrab W, El Moutaouakil Ala Allah A, Alsubari A, Mague JT, Ramli Y. 15,15-Diphenyl-2,3,4,5,6,8,9,11,12-octa-hydro-imidazo[2,1- h][1,4,12]trioxa[7]thia-[9]azacyclo-tetra-decin-14(15 H)-one. IUCRDATA 2023; 8:x230125. [PMID: 36911084 PMCID: PMC9993893 DOI: 10.1107/s2414314623001256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
The title mol-ecule, C23H26N2O4S, adopts a cup-shaped conformation. In the crystal, layers lying parallel to the ab plane are formed by C-H⋯O hydrogen bonds and C-H⋯π(ring) inter-actions. The layers stack along the c-axis direction through normal van der Waals inter-actions.
Collapse
Affiliation(s)
- Walid Guerrab
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | | | - Abdulsalam Alsubari
- Laboratory of Medicinal Chemistry, Faculty of Clinical Pharmacy, 21 September University, Yemen
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Youssef Ramli
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| |
Collapse
|
9
|
Insights into the DMH tautomeric structures and its effects on the electro-reduction of Au(DMH)4− coordination ions. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2022.141494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
10
|
Moskalik MY. Sulfonamides with Heterocyclic Periphery as Antiviral Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010051. [PMID: 36615245 PMCID: PMC9822084 DOI: 10.3390/molecules28010051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Sulfonamides are the basic motifs for a whole generation of drugs from a large group of antibiotics. Currently, research in the field of the new sulfonamide synthesis has received a "second wind", due to the increase in the synthetic capabilities of organic chemistry and the study of their medical and biological properties of a wide spectrum of biological activity. New reagents and new reactions make it possible to significantly increase the number of compounds with a sulfonamide fragment in combination with other important pharmacophore groups, such as, for example, a wide class of N-containing heterocycles. The result of these synthetic possibilities is the extension of the activity spectrum-along with antibacterial activity, many of them exhibit other types of biological activity. Antiviral activity is also observed in a wide range of sulfonamide derivatives. This review provides examples of the synthesis of sulfonamide compounds with antiviral properties that can be used to develop drugs against coxsackievirus B, enteroviruses, encephalomyocarditis viruses, adenoviruses, human parainfluenza viruses, Ebola virus, Marburg virus, SARS-CoV-2, HIV and others. Since over the past three years, viral infections have become a special problem for public health throughout the world, the development of new broad-spectrum antiviral drugs is an extremely important task for synthetic organic and medicinal chemistry. Sulfonamides can be both sources of nitrogen for building a nitrogen-containing heterocyclic core and the side chain substituents of a biologically active substance. The formation of the sulfonamide group is often achieved by the reaction of the N-nucleophilic center in the substrate molecule with the corresponding sulfonylchloride. Another approach involves the use of sulfonamides as the reagents for building a nitrogen-containing framework.
Collapse
Affiliation(s)
- Mikhail Yu Moskalik
- Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia
| |
Collapse
|
11
|
Calcatelli A, Denton RM, Ball LT. Modular Synthesis of α,α-Diaryl α-Amino Esters via Bi(V)-Mediated Arylation/S N2-Displacement of Kukhtin–Ramirez Intermediates. Org Lett 2022; 24:8002-8007. [PMID: 36278869 PMCID: PMC9641671 DOI: 10.1021/acs.orglett.2c03201] [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] [Indexed: 11/28/2022]
Abstract
![]()
We report a concise and modular approach to α,α-diaryl
α-amino esters from readily available α-keto esters. This
mild, one-pot protocol proceeds via ketone umpolung, with in situ formation of a Kukhtin–Ramirez intermediate
preceding sequential electrophilic arylation by Bi(V) and SN2 displacement by an amine. The methodology is compatible with a
wide range of anilines and primary amines - including derivatives
of drugs and proteinogenic amino acids - Bi(V) arylating agents, and
α-keto ester substrates.
Collapse
Affiliation(s)
| | - Ross M. Denton
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, U.K
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, 6 Triumph Road, Nottingham NG7 2GA, U.K
| | - Liam T. Ball
- School of Chemistry, University of Nottingham, Nottingham NG7 2RD, U.K
| |
Collapse
|
12
|
Tshiluka NR, Bvumbi MV, Tshishonga U, Mnyakeni-Moleele SS. Synthesis of new 5-benzylidene-hydantoin esters. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221104183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Compounds containing a hydantoin moiety are found in several medicines in clinical use. In this research, ethyl- and methyl-[2-(5-benzylidene)-2,4-dioxoimidazolidin-3-yl]acetyl esters are successfully synthesized over four reaction steps using conventional methods. The synthesis begins by subjecting hydantoin to a Knoevenagel condensation reaction with three different benzaldehydes to afford the penultimate products, which are further reacted with ethyl or methyl (bromoacetyl)alaninates, butanoates, valinates, and norvalinates to give the desired products as esters in low to moderate yields.
Collapse
|
13
|
Babawale F, Murugesan K, Narobe R, König B. Synthesis of Unnatural α-Amino Acid Derivatives via Photoredox Activation of Inert C(sp 3)-H Bonds. Org Lett 2022; 24:4793-4797. [PMID: 35749614 DOI: 10.1021/acs.orglett.2c01822] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of unnatural, tertiary amino acids is a challenging task. While decarboxylation-radical addition has been an important strategy for their formation, the use of alkyl radicals from C(sp3)-H bonds has not been fully explored. Herein, we report a photocatalytic protocol for the synthesis of unnatural α-amino esters employing abundant alkanes and imines retaining full atom economy. When this method is applied, several amino acid derivatives are synthesized in moderate to good yields.
Collapse
Affiliation(s)
- Florence Babawale
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93053 Regensburg, Germany
| | - Kathiravan Murugesan
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93053 Regensburg, Germany
| | - Rok Narobe
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93053 Regensburg, Germany
| | - Burkhard König
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg, 93053 Regensburg, Germany
| |
Collapse
|
14
|
Elkanzi NAA, Abdelhamid AA, Ali AM. Designing and Anti‐Inflammatory Effectiveness of Novel Phenytoin Derivatives via One Pot Multicomponent Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202201293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nadia A. A. Elkanzi
- Chemistry Department College of Science Jouf University, P.O. Box 2014 Sakaka Saudi Arabia
| | | | - Ali M. Ali
- Chemistry Department Faculty of Science Sohag 82524 Egypt
| |
Collapse
|
15
|
Design and synthesis of amino acid derivatives containing hydantoin and thiazolidine moieties. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02053-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
Moniriyan F, Sabounchei SJ. Comparison of two new graphene-based magnetic and non-magnetic nanocatalysts for Suzuki–Miyaura coupling and optimization of reaction conditions using design of experiment (DoE). REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02217-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
17
|
Liu W, Zhang S, Xiao L, Wan Y, He L, Wang K, Qi Z, Li X. Synthesis and biological activity of novel hydantoin cyclohexyl sulfonamide derivatives as potential antimicrobial agents in agriculture. PEST MANAGEMENT SCIENCE 2022; 78:1438-1447. [PMID: 34921739 DOI: 10.1002/ps.6761] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/24/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Plant disease is one of the most serious problems in agriculture that can damage crops. Chemical fungicides are widely used to control plant diseases, but have led to resistance and a series of environmental problems. It is, therefore, necessary to develop highly effective and eco-friendly antimicrobial compounds with novel structures. RESULTS A series of novel hydantoin cyclohexyl sulfonamide derivatives were synthesized through an intramolecular condensation reaction. The bioassay results indicated that a majority of the title compounds displayed potent inhibitory activity against Botrytis cinerea, Sclerotinia sclerotiorum and Erwinia carotorora. The in vivo inhibition rate of compound 3h was 91.01% against B. cinerea, which was higher than that of iprodione (84.07%). Compound 3w showed excellent antifungal activity against B. cinerea with a half-maximal effective concentration (EC50 ) of 4.80 μg ml-1 , which is lower than that of iprodione. Compound 3q had an EC50 value of 1.44 μg ml-1 against S. sclerotiorum, which was close to that of iprodione (1.39 μg ml-1 ), and the inhibition rate was also similar to that of iprodione. Compounds 3i and 3w had the best inhibition efficacy against S. sclerotiorum, both on growth of the mycelium and sclerotia and in the greenhouse pot test in vitro. Further study showed that compounds 3h, 3r and 3s have superb antibacterial activity against E. carotorora with EC50 values of 2.65, 4.24 and 4.29 μg ml-1 respectively, and were superior to streptomycin sulfate (5.96 μg ml-1 ). CONCLUSION Because of their excellent antifungal and antibacterial activity against B. cinerea, S. sclerotiorum and E. carotorora, these hydantoin cyclohexyl sulfonamide derivatives could be considered as suitable candidates for new antimicrobial agents. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Wei Liu
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Shen Zhang
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Lifeng Xiao
- Dalian Join King Fine Chemical Co., Ltd., Dalian, China
| | - Ying Wan
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Lu He
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Kai Wang
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Zhiqiu Qi
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Xinghai Li
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, China
| |
Collapse
|
18
|
Keenan T, Jean A, Arseniyadis S. Phase-Transfer-Catalyzed Alkylation of Hydantoins. ACS ORGANIC & INORGANIC AU 2022; 2:312-317. [PMID: 36855589 PMCID: PMC9954259 DOI: 10.1021/acsorginorgau.1c00058] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient, cost-effective, and environmentally friendly protocol is reported for the C5-selective alkylation of hydantoins under phase-transfer catalysis. The reactions are scalable and only require a catalytic amount of tetrabutylammonium bromide (TBAB) to achieve high yields under mild reaction conditions. Moreover, the method is applicable to a wide range of electrophiles, including alkyl-, allyl-, propargyl-, and benzyl halides, as well as acrylates and dibromoalkanes, but also to virtually any hydantoin precursor. We also highlight the potential for an enantioselective adaptation using a chiral phase-transfer catalyst.
Collapse
Affiliation(s)
- Thomas Keenan
- Department
of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.
| | - Alexandre Jean
- Industrial
Research Centre, Oril Industrie, 13 rue Desgenétais, 76210 Bolbec, France,
| | - Stellios Arseniyadis
- Department
of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.,
| |
Collapse
|
19
|
Delgado GE, Mora AJ, Narea P, Chacón C, Marroquin G, Hernández B, Cisterna J, Brito I. Synthesis, crystal structure, hydrogen bond patterns and Hirshfeld surface analysis of (S)-5-(4-hydroxybenzyl)-imidazolidine-2,4‑dione. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
20
|
Yuan Y, Wang L, Porcheddu A, Colacino E, Solin N. Mechanochemical Preparation of Protein : hydantoin Hybrids and Their Release Properties. CHEMSUSCHEM 2022; 15:e202102097. [PMID: 34817915 PMCID: PMC9299789 DOI: 10.1002/cssc.202102097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/20/2021] [Indexed: 05/04/2023]
Abstract
Mechanochemistry is a versatile methodology that can be employed both for covalent bond formation in organic synthesis as well as a mediator to allow preparation novel colloidal dispersions for drug delivery. Herein, ball-milling was employed for the solid-state preparation of fluorescent hydrophobic hydantoins, followed by the unprecedented mechanochemically-mediated complexation of hydrophobic hydantoins within hydrophilic protein β-lactoglobulin (BLG) and BLG nanofibrils (BLGNFs). These hydantoin:protein materials were in turn incorporated into hydrogels. The effect of incorporation of hydantoins into proteins, as well as the effect of protein structure, on the release properties were then investigated. The conversion of BLG to BLGNFs led to a more sustained release demonstrating that heat treatment of BLG into BLGNFs could be employed to modify release properties. To the best of our knowledge, this is the first example where protein : hydantoin complexes were prepared by mechanochemical methodology and mechanochemistry was combined with self-assembly in order to prepare protein nanomaterials for drug-delivery applications. In addition, the use of the developed protein materials is not limited to delivery of drugs but can for example be employed as components of smart food (delivery of nutrients) or release systems of pesticides.
Collapse
Affiliation(s)
- Yusheng Yuan
- Department of Physics, Chemistry, and BiologyBiomolecular and Organic ElectronicsLinköping University581 83LinköpingSweden
| | - Lei Wang
- Department of Physics, Chemistry, and BiologyBiomolecular and Organic ElectronicsLinköping University581 83LinköpingSweden
| | - Andrea Porcheddu
- Department of Chemical and Geological SciencesUniversity of CagliariCittadella UniversitariaSS 554 bivio per Sestu09042MonserratoItaly
| | | | - Niclas Solin
- Department of Physics, Chemistry, and BiologyBiomolecular and Organic ElectronicsLinköping University581 83LinköpingSweden
| |
Collapse
|
21
|
Nie Y, Li J, Yuan Q, Zhang W. Synthesis of Chiral Hydantoins and Thiazolidinediones via
Iridium‐Catalyzed
Asymmetric Hydrogenation. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yu Nie
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jing Li
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- College of Chemistry, Zhengzhou University 75 Daxue Road Zhengzhou 450052 P. R. China
| |
Collapse
|
22
|
Voronov A, Botla V, Montanari L, Carfagna C, Mancuso R, Gabriele B, Maestri G, Motti E, Della Ca N. Pd-Catalysed oxidative carbonylation of α-amino amides to hydantoins under mild conditions. Chem Commun (Camb) 2021; 58:294-297. [PMID: 34882163 DOI: 10.1039/d1cc04154a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of palladium-catalysed oxidative carbonylation of unprotected α-amino amides to hydantoins is described here. The selective synthesis of the target compounds was achieved under mild conditions (1 atm of CO), without ligands and bases. The catalytic system overrode the common reaction pathway that usually leads instead to the formation of symmetrical ureas.
Collapse
Affiliation(s)
- Aleksandr Voronov
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Vinayak Botla
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Luca Montanari
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Carla Carfagna
- Department of Industrial Chemistry "T. Montanari", University of Bologna, Bologna 40136, Italy
| | - Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci 12/C, Arcavacata di Rende 87036, Cosenza, Italy
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci 12/C, Arcavacata di Rende 87036, Cosenza, Italy
| | - Giovanni Maestri
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
| | - Elena Motti
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
| | - Nicola Della Ca
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
| |
Collapse
|
23
|
Hernández B, Narea P, Cisterna J, Maxwell L, Cárdenas A, Brito I, Delgado GE. Synthesis, spectroscopy and crystal structure characterization, Hirshfeld surface analysis and energy framework calculations of 1-acetyl-5-(2-(methylthio) ethyl)-2-thioxoimidazolidin-4-one. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
24
|
Lan CB, Auclair K. Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunling Blue Lan
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Karine Auclair
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| |
Collapse
|
25
|
Shintani Y, Kato K, Kawami M, Takano M, Kumamoto T. Direct N 1-Selective Alkylation of Hydantoins Using Potassium Bases. Chem Pharm Bull (Tokyo) 2021; 69:407-410. [PMID: 33790085 DOI: 10.1248/cpb.c20-00857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydantoins, including the antiepileptic drug phenytoin, contain an amide nitrogen and an imide nitrogen, both of which can be alkylated. However, due to the higher acidity of its proton, N3 can be more easily alkylated than N1 under basic conditions. In this study, we explored methods for direct N1-selective methylation of phenytoin and found that conditions using potassium bases [potassium tert-butoxide (tBuOK) and potassium hexamethyldisilazide (KHMDS)] in tetrahydrofuran (THF) gave N1-monomethylated phenytoin in good yield. The applicable scope of this reaction system was found to include various hydantoins and alkyl halides. To explore the function of methylated hydantoins, the effects of a series of methylated phenytoins on P-glycoprotein were examined, but none of methylated products showed inhibitory activity toward rhodamine 123 efflux by P-glycoprotein.
Collapse
Affiliation(s)
- Yumi Shintani
- Department of Synthetic Organic Chemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Koichi Kato
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry
| | - Masashi Kawami
- Department of Pharmaceutics and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Mikihisa Takano
- Department of Pharmaceutics and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University
| | - Takuya Kumamoto
- Department of Synthetic Organic Chemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University
| |
Collapse
|
26
|
Xiao G, Xu S, Xie C, Zi G, Ye W, Zhou Z, Hou G, Zhang Z. Enantioselective Synthesis of Chiral Substituted 2,4-Diketoimidazolidines and 2,5-Diketopiperazines via Asymmetric Hydrogenation. Org Lett 2021; 23:5734-5738. [PMID: 34240880 DOI: 10.1021/acs.orglett.1c01894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantioselective hydrogenation of 5-alkylidene-2,4-diketoimidazolidines (hydantoins) and 3-alkylidene-2,5-ketopiperazines catalyzed by the Rh/f-spiroPhos complex under mild conditions has been developed, which provides an efficient approach to the highly enantioselective synthesis of chiral hydantoins and 2,5-ketopiperazine derivatives with high enantioselectivities up to 99.9% ee.
Collapse
Affiliation(s)
- Guiying Xiao
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Shuang Xu
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Chaochao Xie
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | | | | | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China.,Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhanbin Zhang
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University, Beijing 100875, China
| |
Collapse
|
27
|
Delgado GE, Mora AJ, Seijas LE, Rincón L, Marroquin G, Cisterna J, Cárdenas A, Brito I. Combined DFT calculation, Hirshfeld surface analysis, and Energy framework study of non-covalent interactions in the crystal structure of (Z)-5-ethylidene-2-thiohydantoin determined by powder X-ray diffraction. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
28
|
Kalník M, Gabko P, Bella M, Koóš M. The Bucherer-Bergs Multicomponent Synthesis of Hydantoins-Excellence in Simplicity. Molecules 2021; 26:4024. [PMID: 34209381 PMCID: PMC8271528 DOI: 10.3390/molecules26134024] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/20/2021] [Accepted: 06/24/2021] [Indexed: 12/02/2022] Open
Abstract
Hydantoins and their hybrids with other molecules represent a very important group of heterocycles because they exhibit diverse biological and pharmacological activities in medicinal and agrochemical applications. They also serve as key precursors in the chemical or enzymatic synthesis of significant nonnatural α-amino acids and their conjugates with medical potential. This review provides a comprehensive treatment of the synthesis of hydantoins via the Bucherer-Bergs reaction including the Hoyer modification but limited to free carbonyl compounds or carbonyl compounds protected as acetals (ketals) and cyanohydrins used as starting reaction components. In this respect, the Bucherer-Bergs reaction provides an efficient and simple method in the synthesis of important natural products as well as for the preparation of new organic compounds applicable as potential therapeutics. The scope and limitations, as well as a comparison with some other methods for preparing hydantoins, are also discussed.
Collapse
Affiliation(s)
| | | | | | - Miroslav Koóš
- Institute of Chemistry, Center for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 38 Bratislava, Slovakia; (M.K.); (P.G.); (M.B.)
| |
Collapse
|
29
|
Guerrab W, El Jemli M, Akachar J, Demirtaş G, Mague JT, Taoufik J, Ibrahimi A, Ansar M, Alaoui K, Ramli Y. Design, synthesis, structural and molecular characterization, toxicity, psychotropic activity and molecular docking evaluation of a novel phenytoin derivative: 3-decyl-5,5-diphenylimidazolidine-2,4-dione. J Biomol Struct Dyn 2021; 40:8765-8782. [PMID: 33970810 DOI: 10.1080/07391102.2021.1922096] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The hydantoin scaffold is of substantial importance and it is commonly used in drug discovery. Herein, we report the synthesis of a novel phenytoine (a hydantoin derivative) with high yield by the reaction of phenytoin with 1-bromodecyl agent. Namely, 3-decyl-5,5- diphenylimidazolidine-2,4-dione (3DDID). The optimized geometry of the compound was calculated using density functional theory (DFT) method by B3LYP with 6-311++G(d,p) basis set. For this calculation, the X-ray data were used as initial values. Molecular electrostatic potential (MEP) surface and Frontier molecular orbitals (FOMs) were prepared for the compound. The crystal structure of the title compound contains intermolecular N-H···O, C-H···O hydrogen bonds and weak C-H···π interactions. Hirshfeld surface analysis and 2D fingerprint plots of the molecule aid comparison of intermolecular interactions and these analysis reveals that two close contacts are associated with intermolecular hydrogen bonds. The psychotropic activity evaluation of the synthesized compound was further explored using hole bored test for exploratory behaviors, dark//light box test for anxiolytic activity and Rota-road, traction, chimney testes were used to assess the myrelaxant effect. In addition, molecular modeling study was also conducted to rationalize the potential as neurotherapeutic drugs of our synthesized compound by predicting their binding modes, binding affinities and optimal orientation at the active site of the GABA-A receptor and Na+ channel. Finally, in silico ADMET predictions was also examined. HighlightsSynthesis, structural, and molecular characterization of a novel phenytoin derivative.DFT, XRD, and the Hirshfeld surface analysis of crystal structure was studied.Acute toxicity and psychotropic activity evaluation of 3-decyl-5,5 diphenylimidazolidine-2,4-dione (3DDID).Molecular modeling studies have been conducted to rationalize the obtained data and to determine the probable binding mode.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Walid Guerrab
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Meryem El Jemli
- Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Jihane Akachar
- Laboratoire of Biotechnologie, Faculté de Médecine et de Pharmacie de rabat, Université Mohamed V, Rabat, Morocco
| | - Güneş Demirtaş
- Faculty of Arts and Sciences, Department of Physics, Ondokuz Mayıs University, Samsun, Turkey
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA, USA
| | - Jamal Taoufik
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Azeddine Ibrahimi
- Laboratoire of Biotechnologie, Faculté de Médecine et de Pharmacie de rabat, Université Mohamed V, Rabat, Morocco
| | - M'Hammed Ansar
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Katim Alaoui
- Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Youssef Ramli
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| |
Collapse
|
30
|
An G, Liu J. TfOH/DMEDA‐Mediated Cyclization of 2‐(3‐Arylthioureido)‐amide to Form 2‐Thioimidazoline‐4‐ones. ChemistrySelect 2021. [DOI: 10.1002/slct.202100661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guanghui An
- School of Petroleum and Chemical Engineering Dalian University of Technology, Panjin Campus Panjin Liaoning Province 124221 P. R. China
| | - Jianhui Liu
- School of Petroleum and Chemical Engineering Dalian University of Technology, Panjin Campus Panjin Liaoning Province 124221 P. R. China
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian Liaoning Province 116024 P. R. China
| |
Collapse
|
31
|
Kumar V. Designed Synthesis of Diversely Substituted Hydantoins and Hydantoin-Based Hybrid Molecules: A Personal Account. Synlett 2021. [DOI: 10.1055/a-1480-6474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractHydantoin and its analogues such as thiohydantoin and iminohydantoin have received substantial attention from both a chemical and a biological point of view. Several compounds of this class have shown useful pharmacological activities such as anticonvulsant, antitumor, antiarrhythmic, and herbicidal properties that have led, in some cases, to clinical applications. Because of these broad-spectrum activities, intensive research efforts have been dedicated in industry and academia to the synthesis and structural modifications of hydantoin and its derivatives. Realizing the importance of hydantoin in organic and medicinal chemistry, we also initiated a research program that successfully designed and developed new routes and methods for the formation of hydantoin, thiohydantoin, and iminohydantoin substituted at various positions, particularly at the N-1 position without following a protection–deprotection strategy. Because combinations of two or more pharmacophoric groups can lead to hybrid molecules that display a mixed mechanism of action on biological targets, we extended our developed strategy to the syntheses of new types of hydantoin-based hybrid molecules by combining hydantoin with a triazole, isoxazoline, or phosphate scaffold as a second pharmacophore to exploit their diverse biological functions.1 Introduction2 Chemistry and Properties2.1 Physical Properties2.2 Chemical Properties2.3 Biological Properties3 General Synthetic Methods4 Synthesis of Diversely Substituted Hydantoins5 Synthesis of Diversely Substituted Thiohydantoins6 Synthesis of Diversely Substituted Iminohydantoins7 Fused or Bicyclic (Thio)hydantoins8 Di- or Multivalent (Thio)hydantoins9 Hydantoin-Based Hybrid Molecules9.1 Hydantoin–Isooxazoline Hybrids9.2 Hydantoin–Triazole Hybrids9.3 Hydantoin–Phosphate Hybrids: Phosphorylated Hydantoins10 Summary and Outlook
Collapse
|
32
|
Shybanov DE, Kukushkin ME, Tafeenko VA, Zyk NV, Grishin YK, Roznyatovsky VA, Beloglazkina EK. Different addition modes of cyclopentadiene and furan at methylidene(thio)hydantoins. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
33
|
Ying P, Yu J, Su W. Liquid‐Assisted Grinding Mechanochemistry in the Synthesis of Pharmaceuticals. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001245] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ping Ying
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Jingbo Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| |
Collapse
|
34
|
|
35
|
Stereoselective synthesis of PEGylated azoles via 1,3-dipolar cycloaddition. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Abha Saikia R, Barman D, Dutta A, Jyoti Thakur A. N
1
‐ and
N
3
‐Arylations of Hydantoins Employing Diaryliodonium Salts
via
Copper(I) Catalysis at Room Temperature. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Raktim Abha Saikia
- Department of Chemical Sciences Tezpur University Napaam-784028 Assam India
| | - Dhiraj Barman
- Department of Chemical Sciences Tezpur University Napaam-784028 Assam India
- Department of Chemistry Shiv Nadar University Greater Noida-201314 Uttar Pradesh India
| | - Anurag Dutta
- Department of Chemical Sciences Tezpur University Napaam-784028 Assam India
| | - Ashim Jyoti Thakur
- Department of Chemical Sciences Tezpur University Napaam-784028 Assam India
| |
Collapse
|
37
|
Millward MJ, Ellis E, Ward JW, Clayden J. Hydantoin-bridged medium ring scaffolds by migratory insertion of urea-tethered nitrile anions into aromatic C-N bonds. Chem Sci 2020; 12:2091-2096. [PMID: 34163972 PMCID: PMC8179327 DOI: 10.1039/d0sc06188c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/11/2020] [Indexed: 01/07/2023] Open
Abstract
Bicyclic or tricyclic nitrogen-containing heterocyclic scaffolds were constructed rapidly by intramolecular nucleophilic aromatic substitution of metallated nitriles tethered by a urea linkage to a series of electronically unactivated heterocyclic precursors. The substitution reaction constitutes a ring expansion, enabled by the conformationally constrained tether between the nitrile and the heterocycle. Attack of the metallated urea leaving group on the nitrile generates a hydantoin that bridges the polycyclic products. X-ray crystallography reveals ring-dependant strain within the hydantoin.
Collapse
Affiliation(s)
- Makenzie J Millward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Emily Ellis
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - John W Ward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| |
Collapse
|
38
|
Hayouni S, Michon C, Morvan D, Bellière-Baca V, Agbossou-Niedercorn F. Homogeneous palladium-catalyzed enantioselective hydrogenation of 5-methylenhydantoin for the synthesis of L-Valine. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
39
|
Delgado GE, Mora AJ, Seijas LE, Almeida R, Chacón C, Azotla-Cruz L, Cisterna J, Cárdenas A, Brito I. N-acetyl-5-isopropyl-2-tioxoimidazolidin-4-one: Synthesis, spectroscopic characterization, crystal structure, DFT calculations, Hirshfeld surface analysis and energy framework study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Guerrab W, Mague JT, Ramli Y. Synthesis and crystal structure of 3-octyl-5,5-diphenylimidazolidine-2,4-dione, C23H28N2O2. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractC23H28N2O2, orthorhombic, Pbca (no. 61), a = 10.713(2) Å, b = 15.689(3) Å, c = 24.485(5) Å, V = 4115.2(14) Å3, Z = 8, Rgt(F) = 0.0581, wRref(F2) = 0.1734, T = 120(2) K.
Collapse
Affiliation(s)
- Walid Guerrab
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Youssef Ramli
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
| |
Collapse
|
41
|
Ghasempour L, Asghari S, Tajbakhsh M, Mohseni M. One‐pot synthesis of new hydantoin (thiohydantoin) derivatives and evaluation of their antibacterial and antioxidant activities. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Leila Ghasempour
- Department of Organic Chemistry, Faculty of Chemistry University of Mazandaran Babolsar Iran
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of Chemistry University of Mazandaran Babolsar Iran
- Nano and Biotechnology Research Group University of Mazandaran Babolsar Iran
| | - Mahmood Tajbakhsh
- Department of Organic Chemistry, Faculty of Chemistry University of Mazandaran Babolsar Iran
| | - Mojtaba Mohseni
- Nano and Biotechnology Research Group University of Mazandaran Babolsar Iran
- Department of Microbiology University of Mazandaran Babolsar Iran
| |
Collapse
|
42
|
Lin C, Arancillo M, Whisenant J, Burgess K. Unconventional Secondary Structure Mimics: Ladder‐Rungs. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chen‐Ming Lin
- Department of Chemistry Texas A&M University Box 30012 College Station TX 77842 USA
| | - Maritess Arancillo
- Department of Chemistry Texas A&M University Box 30012 College Station TX 77842 USA
| | - Jonathan Whisenant
- Department of Chemistry Texas A&M University Box 30012 College Station TX 77842 USA
| | - Kevin Burgess
- Department of Chemistry Texas A&M University Box 30012 College Station TX 77842 USA
| |
Collapse
|
43
|
Vatannavaz L, Sabounchei SJ, Sedghi A, Karamian R, Farida SHM, Rahmani N. New nickel, palladium and platinum complexes of hydantoin derivative: Synthesis, characterization, theoretical study and biological activity. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
44
|
Lin CM, Arancillo M, Whisenant J, Burgess K. Unconventional Secondary Structure Mimics: Ladder-Rungs. Angew Chem Int Ed Engl 2020; 59:9398-9402. [PMID: 32176815 DOI: 10.1002/anie.202002639] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/06/2020] [Indexed: 01/31/2023]
Abstract
Secondary structures tend to be recognizable because they have repeating structural motifs, but mimicry of these does not have to follow such well-defined patterns. Bioinformatics studies to match side-chain orientations of a novel hydantoin triazole chemotype (1) to protein-protein interfaces revealed it tends to align well across parallel and antiparallel sheets, like rungs on a ladder. One set of these overlays was observed for the protein-protein interaction uPA⋅uPAR. Consequently, chemotype 1 was made with appropriate side-chains to mimic uPA at this interface. Biophysical assays indicate these compounds did in fact bind uPAR, and elicit cellular responses that affected invasion, migration, and wound healing.
Collapse
Affiliation(s)
- Chen-Ming Lin
- Department of Chemistry, Texas A&M University, Box 30012, College Station, TX, 77842, USA
| | - Maritess Arancillo
- Department of Chemistry, Texas A&M University, Box 30012, College Station, TX, 77842, USA
| | - Jonathan Whisenant
- Department of Chemistry, Texas A&M University, Box 30012, College Station, TX, 77842, USA
| | - Kevin Burgess
- Department of Chemistry, Texas A&M University, Box 30012, College Station, TX, 77842, USA
| |
Collapse
|
45
|
Synthesis of a novel phenytoin derivative: Crystal structure, Hirshfeld surface analysis and DFT calculations. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127630] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
46
|
Neerbye Berntsen L, Nova A, Wragg DS, Sandtorv AH. Cu-catalyzed N-3-Arylation of Hydantoins Using Diaryliodonium Salts. Org Lett 2020; 22:2687-2691. [PMID: 32202123 PMCID: PMC7309330 DOI: 10.1021/acs.orglett.0c00642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A general Cu-catalyzed,
regioselective method for the N-3-arylation of hydantoins
is described. The protocol utilizes aryl(trimethoxyphenyl)iodonium
tosylate as the arylating agent in the presence of triethylamine and
a catalytic amount of a simple Cu-salt. The method is compatible with
structurally diverse hydantoins and operates well with neutral aryl
groups or aryl groups bearing weakly donating/withdrawing elements.
It is also applicable for the rapid diversification of pharmaceutically
relevant hydantoins.
Collapse
Affiliation(s)
- Linn Neerbye Berntsen
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - Ainara Nova
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - David S Wragg
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| | - Alexander H Sandtorv
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway
| |
Collapse
|
47
|
Wu B, Huang J, Lv Z, Cui Z, Hu G, Luo J, Selim MS, Hao Z. Experimental and DFT study of the effect of mercaptosuccinic acid on cyanide-free immersion gold deposition. RSC Adv 2020; 10:9768-9776. [PMID: 35498623 PMCID: PMC9050236 DOI: 10.1039/d0ra00925c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 02/21/2020] [Indexed: 01/19/2023] Open
Abstract
In order to search for an effective alternative to cyanide for gold plating, mercaptosuccinic acid (MSA) was selected as the complexing agent of Au+ by open circuit potential tests and gold plating compared with 1-hydroxyethylidene-1,1-diphosphonic acid and aminomethylphosphonic acid. For the first time, a novel, stable, slightly acidic and cyanide-free gold plating bath was prepared. Scanning electron microscopy, Tafel tests, and tin dipping tests showed that the Cu/Ni–P/Au coating had a fine and even grain size, no black pad, good corrosion resistance, and good weldability. Quantum chemical calculations based on density functional theory were used to further study complexants and complexes. Molecular electrostatic potential indicates that Au+ approaches MSA in the direction of C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
O. Frontier molecular orbital theory, atomic contribution to orbital composition, condensed local softness, and average local ionization energy indicate that the coordination capacity of the S atom in MSA is much stronger than that of other atoms. Fuzzy bond order analysis shows that the S–Au–S coordination structure is the most stable form in the plating solution. UV-visible absorption spectroscopy clarifies that the wavelength is redshifted when MSA–Au(i) ions form. A cyanide-free gold plating bath was prepared and the complexing capacity of mercaptosuccinic acid with Au(i) was studied through density functional theory.![]()
Collapse
Affiliation(s)
- Bo Wu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Jingmeng Huang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Zeman Lv
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Ziya Cui
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Guanghui Hu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Jiye Luo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Mohamed S. Selim
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
- Petroleum Application Department
| | - Zhifeng Hao
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| |
Collapse
|
48
|
Synthesis, structural and molecular characterization of 2,2-diphenyl-2H,3H,5H,6H,7H-imidazo[2,1-b][1,3]thiazin-3-one. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.081] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Guryanov I, Orlandin A, Viola A, Biondi B, Badocco D, Formaggio F, Ricci A, Cabri W. Overcoming Chemical Challenges in the Solid-Phase Synthesis of High-Purity GnRH Antagonist Degarelix. Part 1. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00430] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ivan Guryanov
- Fresenius Kabi iPSUM Srl, Via San Leonardo 23, Villadose, Rovigo 45010, Italy
- ICB, Padova Unit, CNR, Department of Chemistry, University of Padova, Via Marzolo 1, Padova 35131, Italy
- Institute of Chemistry, Saint Petersburg State University, Universitetskij Pr. 26, Saint Petersburg, Peterhof 198504, Russia
| | - Andrea Orlandin
- Fresenius Kabi iPSUM Srl, Via San Leonardo 23, Villadose, Rovigo 45010, Italy
| | - Angelo Viola
- Fresenius Kabi iPSUM Srl, Via San Leonardo 23, Villadose, Rovigo 45010, Italy
| | - Barbara Biondi
- ICB, Padova Unit, CNR, Department of Chemistry, University of Padova, Via Marzolo 1, Padova 35131, Italy
| | - Denis Badocco
- ICB, Padova Unit, CNR, Department of Chemistry, University of Padova, Via Marzolo 1, Padova 35131, Italy
| | - Fernando Formaggio
- ICB, Padova Unit, CNR, Department of Chemistry, University of Padova, Via Marzolo 1, Padova 35131, Italy
| | - Antonio Ricci
- Fresenius Kabi iPSUM Srl, Via San Leonardo 23, Villadose, Rovigo 45010, Italy
| | - Walter Cabri
- Fresenius Kabi iPSUM Srl, Via San Leonardo 23, Villadose, Rovigo 45010, Italy
| |
Collapse
|
50
|
Brandão P, Pineiro M, Pinho e Melo TMVD. Flow Chemistry: Towards A More Sustainable Heterocyclic Synthesis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901335] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Pedro Brandão
- CQC and Department of Chemistry; University of Coimbra; 3004-535 Coimbra Portugal
- Centro de Química de Évora; Institute for Research and Advanced Studies; University of Évora; 7000 Évora Portugal
| | - Marta Pineiro
- CQC and Department of Chemistry; University of Coimbra; 3004-535 Coimbra Portugal
| | | |
Collapse
|