1
|
Akbaba Y, Kacı FN, Arslan ME, Göksü S, Mardinoğlu A, Türkez H. Novel tetrahydronaphthalen-1-yl-phenethyl ureas: synthesis and dual antibacterial-anticancer activities. J Enzyme Inhib Med Chem 2024; 39:2286925. [PMID: 38062550 DOI: 10.1080/14756366.2023.2286925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
Cancer and antibiotic-resistant bacterial infections are significant global health challenges. The resistance developed in cancer treatments intensifies therapeutic difficulties. In addressing these challenges, this study synthesised a series of N,N'-dialkyl urea derivatives containing methoxy substituents on phenethylamines. Using isocyanate for the efficient synthesis yielded target products 14-18 in 73-76% returns. Subsequently, their antibacterial and anticancer potentials were assessed. Cytotoxicity tests on cancer cell lines, bacterial strains, and a healthy fibroblast line revealed promising outcomes. All derivatives demonstrated robust antibacterial activity, with MIC values ranging from 0.97 to 15.82 µM. Notably, compounds 14 and 16 were particularly effective against the HeLa cell line, while compounds 14, 15, and 17 showed significant activity against the SH-SY5Y cell line. Importantly, these compounds had reduced toxicity to healthy fibroblast cells than to cancer cells, suggesting their potential as dual-functioning agents targeting both cancer and bacterial infections.
Collapse
Affiliation(s)
- Yusuf Akbaba
- Department of Basic Sciences, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Fatma Necmiye Kacı
- Department of Molecular Biology & Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
- Faculty of Medicine and Health, St. James' University Hospital, University of Leeds, Leeds, UK
| | - Mehmet Enes Arslan
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Süleyman Göksü
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Adil Mardinoğlu
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Hasan Türkez
- Department of Medical Biology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| |
Collapse
|
2
|
Gong Y, Yan L, Guo Z. Na 2CO 3-promoted synthesis of thiocarbamates from isocyanates and thiols under mild conditions. Org Biomol Chem 2024; 22:6277-6281. [PMID: 39040031 DOI: 10.1039/d4ob01068j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Here, we developed an efficient method for the synthesis of s-alkyl or aryl thiocarbamates catalyzed by Na2CO3 under mild conditions using alkyl or aryl isocyanates and thiophenols or thiols. In situ reaction with deuterated tetrahydrofuran (d8-THF) was carried out to investigate the reaction mechanism. This method has the advantages of high yield, good functional group tolerance and high atom economy.
Collapse
Affiliation(s)
- Yingbin Gong
- Scientific Instrument Center, Shanxi University, Taiyuan, 030006, P.R. China.
- Shanxi School of Traditional Chinese Medicine, Jinzhong 030619, P.R. China
| | - Leilei Yan
- Scientific Instrument Center, Shanxi University, Taiyuan, 030006, P.R. China.
| | - Zhiqiang Guo
- Scientific Instrument Center, Shanxi University, Taiyuan, 030006, P.R. China.
| |
Collapse
|
3
|
Kim SY, Lim HN. Methyl Pyruvate Oxime as a Carbonyl Synthon: Synthesis of Ureas, Carbamates, Thiocarbamates, and Anilides. Org Lett 2024; 26:3850-3854. [PMID: 38683648 DOI: 10.1021/acs.orglett.4c01007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
A new strategy for the synthesis of unsymmetrical ureas, carbamates, thiocarbamates, and anilides was developed with methyl pyruvate oxime as the carbonyl synthon. The intrinsic reactivity of the reagent enabled consecutive disubstitution involving direct amidation and one-pot deoximative substitution with various nucleophiles. The utility of the method was demonstrated with the synthesis of bioactive molecules.
Collapse
Affiliation(s)
- Seo Yeon Kim
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| |
Collapse
|
4
|
Sun Q, Xu Y, Yang L, Zheng CL, Wang G, Wang HB, Fang Z, Wang CS, Guo K. Direct C-H Sulfuration: Synthesis of Disulfides, Dithiocarbamates, Xanthates, Thiocarbamates and Thiocarbonates. Chem Asian J 2024; 19:e202400124. [PMID: 38421239 DOI: 10.1002/asia.202400124] [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: 02/05/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
In light of the important biological activities and widespread applications of organic disulfides, dithiocarbamates, xanthates, thiocarbamates and thiocarbonates, the continual persuit of efficient methods for their synthesis remains crucial. Traditionally, the preparation of such compounds heavily relied on intricate multi-step syntheses and the use of highly prefunctionalized starting materials. Over the past two decades, the direct sulfuration of C-H bonds has evolved into a straightforward, atom- and step-economical method for the preparation of organosulfur compounds. This review aims to provide an up-to-date discussion on direct C-H disulfuration, dithiocarbamation, xanthylation, thiocarbamation and thiocarbonation, with a special focus on describing scopes and mechanistic aspects. Moreover, the synthetic limitations and applications of some of these methodologies, along with the key unsolved challenges to be addressed in the future are also discussed. The majority of examples covered in this review are accomplished via metal-free, photochemical or electrochemical approaches, which are in alignment with the overraching objectives of green and sustainable chemistry. This comprehensive review aims to consolidate recent advancements, providing valuable insights into the dynamic landscape of efficient and sustainable synthetic strategies for these crucial classes of organosulfur compounds.
Collapse
Affiliation(s)
- Qiao Sun
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Yuan Xu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore
| | - Liu Yang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Chun-Ling Zheng
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Guowei Wang
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Hai-Bo Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Zheng Fang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Chang-Sheng Wang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Kai Guo
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| |
Collapse
|
5
|
Gallinger TL, Obermann W, Lange-Grünweller K, Schmidt N, Haeberlein S, Grünweller A, Grevelding CG, Schlitzer M. From dithiocarbamates to branched dithiocarbazates: Compounds with potent antischistosomal activity. Arch Pharm (Weinheim) 2023; 356:e2200491. [PMID: 36482264 DOI: 10.1002/ardp.202200491] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 12/13/2022]
Abstract
Schistosomiasis or bilharzia is caused by blood flukes of the genus Schistosoma and represents a considerable health and economic burden in tropical and subtropical regions. The treatment of this infectious disease relies on one single drug: praziquantel (PZQ). Therefore, new and potent antischistosomal compounds need to be developed. In our previous work, starting with the drug disulfiram, we developed dithiocarbamates with in vitro antischistosomal activities in the low micromolar range. Based on these results, we report in this study on the synthesis and biological testing of the structurally related dithiocarbazates against Schistosoma mansoni, one of the major species of schistosomes. In total, three series of dithiocarbazate derivatives were examined, and we found that the antischistosomal activity of N-unbranched dithiocarbazates increased by further N-substitution. Comparable tetra-substituted dithiocarbazates were rarely described in the literature, thus a synthesis route was established. Due to the elaborate synthesis, the branched dithiocarbazates (containing an N-aminopiperazine) were simplified, but the resulting branched dithiocarbamates (containing a 4-aminopiperidine) were considerably less active. Taken together, dithiocarbazate-containing compounds with an in vitro antischistosomal activity of 5 µM were obtained.
Collapse
Affiliation(s)
- Tom L Gallinger
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marburg, Germany
| | - Wiebke Obermann
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marburg, Germany
| | | | - Nina Schmidt
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marburg, Germany
| | - Simone Haeberlein
- BFS, Institute of Parasitology, Justus Liebig University Giessen, Giessen, Germany
| | - Arnold Grünweller
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marburg, Germany
| | | | - Martin Schlitzer
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marburg, Germany
| |
Collapse
|
6
|
Pseudo-irreversible butyrylcholinesterase inhibitors: Structure-activity relationships, computational and crystallographic study of the N-dialkyl O-arylcarbamate warhead. Eur J Med Chem 2023; 247:115048. [PMID: 36586299 DOI: 10.1016/j.ejmech.2022.115048] [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: 11/17/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 12/25/2022]
Abstract
Alongside reversible butyrylcholinesterase inhibitors, a plethora of covalent butyrylcholinesterase inhibitors have been reported in the literature, typically pseudo-irreversible carbamates. For these latter, however, most cases lack full confirmation of their covalent mode of action. Additionally, the available reports regarding the structure-activity relationships of the O-arylcarbamate warhead are incomplete. Therefore, a follow-up on a series of pseudo-irreversible covalent carbamate human butyrylcholinesterase inhibitors and the structure-activity relationships of the N-dialkyl O-arylcarbamate warhead are presented in this study. The covalent mechanism of binding was tested by IC50 time-dependency profiles, and sequentially and increasingly confirmed by kinetic analysis, whole protein LC-MS, and crystallographic analysis. Computational studies provided valuable insights into steric constraints and identified problematic, bulky carbamate warheads that cannot reach and carbamoylate the catalytic Ser198. Quantum mechanical calculations provided further evidence that steric effects appear to be a key factor in determining the covalent binding behaviour of these carbamate cholinesterase inhibitors and their duration of action. Additionally, the introduction of a clickable terminal alkyne moiety into one of the carbamate N-substituents and in situ derivatisation with azide-containing fluorophore enabled fluorescent labelling of plasma human butyrylcholinesterase. This proof-of-concept study highlights the potential of this novel approach and for these compounds to be further developed as clickable molecular probes for investigating tissue localisation and activity of cholinesterases.
Collapse
|
7
|
Xu H, Wu H, Zhang X, Lu X, Sun T, Qi Y, Lin Y, Yang X, Zhang L, Ling Y. Design, Synthesis and Bioactivity of Sulfonyl Hydrazides and Hydrazides Containing Fragment 1,2,3,4-Tetrahydroisoquinoline. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
|
8
|
Gu Q, Cheng Z, Qiu X, Zeng X. Recent Advances in the Electrochemical Functionalization of Isocyanides. CHEM REC 2023; 23:e202200177. [PMID: 36126178 DOI: 10.1002/tcr.202200177] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/30/2022] [Indexed: 01/21/2023]
Abstract
Isocyanides are well-known as efficient CO surrogates and C1 synthons in modern organic synthesis. Although tremendous efforts have been devoted to fully exploiting the reactivity of isocyanides, these transformations are primarily limited by their utilization of stoichiometric toxic chemical oxidants. With the recent resurgence of organic electrochemistry, which has considerably laid dormant over the past several decades, electrolysis has been identified as a green and powerful tool to enrich structural diversity by solely utilizing electric current as clean and inherently safe redox equivalents of stoichiometric chemical oxidants. In this regard, the unique reactivity of isocyanides has been studied in numerous electrochemical transformations. This review comprehensively highlights the most relevant progress in electrochemical strategies towards the functionalization of isocyanides up until June of 2022, with a focus on reaction outcomes and mechanisms.
Collapse
Affiliation(s)
- Qingyun Gu
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Zhenfeng Cheng
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Xiaodong Qiu
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Xiaobao Zeng
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| |
Collapse
|
9
|
Abrams JN. Design, Synthesis, and In Vitro Mitotic Evaluation of 3‐Amino‐Isoquinolinones as Anticancer Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202202861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jason N. Abrams
- Department of Chemistry Texas A&M University Kingsville 700 University Blvd Kingsville TX 78363
| |
Collapse
|
10
|
Dolai M, Pakrashy S, Ghosh AK, Biswas S, Konar S, Alasmary FA, Almalki AS, Islam MA. Competent DNA binder pentagonal bipyramidal Fe(II) complex executed as a proficient catalyst for primary carbamates production from alcohols and urea. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
11
|
Karche AD, Kamalakannan P, Powar R, Shenoy GG, Padiya KJ. “On-Water” Reaction of (Thio)isocyanate: A Sustainable Process for the Synthesis of Unsymmetrical (Thio)ureas. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amit Dattatray Karche
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Prabakaran Kamalakannan
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Rajendra Powar
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| | - Gautham G. Shenoy
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576 104. India
| | - Kamlesh J. Padiya
- Process Research and Development, Novel Drug Discovery and Development, Lupin Research Park, Lupin Limited, 46A/47A Village Nande, Pune 412 115, India
| |
Collapse
|
12
|
Campagna D, Göstl R. Mechanoresponsive Carbamoyloximes for the Activation of Secondary Amines in Polymers. Angew Chem Int Ed Engl 2022; 61:e202207557. [PMID: 35905139 DOI: 10.1002/anie.202207557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Indexed: 01/07/2023]
Abstract
Mechanophores are molecular moieties that are incorporated into polymers and respond to force with constitutional, configurational, or conformational bond rearrangements to enable functionality. Up to today, several chemically latent motifs have been activated by polymer mechanochemical methods, but the generation of secondary amines remains elusive. Here we report carbamoyloximes as mechanochemical protecting groups for secondary amines. We show that carbamoyloximes undergo force-induced homolytic bond scission at the N-O oxime bond in polymers thus producing the free amine, as the reaction proceeds via the carbamoyloxyl and aminyl radicals, analogously to its photochemical counterpart. Eventually, we apply the carbamoyloxime motif in a force-activated organocatalytic Knoevenagel reaction. We believe that this protecting strategy can be universally applied for many other secondary and primary amines in polymer materials.
Collapse
Affiliation(s)
- Davide Campagna
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 1, 52074, Aachen, Germany
| | - Robert Göstl
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany
| |
Collapse
|
13
|
Akbaba Y. A straightforward synthesis of potentially biologically active novel urea derivatives from 1,2,3,4-tetrahydronaphthalene-2-carboxylic acids. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02982-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
14
|
Asghar F, Shakoor B, Murtaza B, Butler IS. An insight on the different synthetic routes for the facile synthesis of O/S-donor carbamide/thiocarbamide analogs and their miscellaneous pharmacodynamic applications. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2119085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Faiza Asghar
- Department of Chemistry, University of Wah, Wah, Pakistan
- Department of Chemistry, McGill University, Montreal, Canada
| | - Bushra Shakoor
- Department of Chemistry, University of Wah, Wah, Pakistan
| | - Babar Murtaza
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Ian S. Butler
- Department of Chemistry, McGill University, Montreal, Canada
| |
Collapse
|
15
|
Tosi E, Campagne JM, de Figueiredo RM. Amine Activation: "Inverse" Dipeptide Synthesis and Amide Function Formation through Activated Amino Compounds. J Org Chem 2022; 87:12148-12163. [PMID: 36069394 DOI: 10.1021/acs.joc.2c01288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper(II)/HOBt-catalyzed procedure for the synthesis of dipeptides and "general" amides has been developed using microwave irradiation to considerably hasten the reaction. As an alternative to using traditional carboxylic acid activation, the method relies on the use of N-acyl imidazoles as activated amino partners. By doing so, a nonconventional way to reach dipeptides and amides has been proposed through the challenging and less studied N → C direction synthesis. A series of dipeptides and "general" amides have been successfully synthesized, and the applicability of the method has been illustrated in gram-scale syntheses. The mild reaction conditions proposed are completely adequate for couplings in the presence of sensitive amino acids, affording the products without detectable racemization. Furthermore, experimental observations prompted us to propose a plausible reaction pathway for the couplings.
Collapse
Affiliation(s)
- Eleonora Tosi
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34293, France
| | | | | |
Collapse
|
16
|
Bansagi J, Wilson-Konderka C, Debrauwer V, Narayanan P, Batey RA. N-Alkyl Carbamoylimidazoles as Isocyanate Equivalents: Exploration of the Reaction Scope for the Synthesis of Ureas, Hydantoins, Carbamates, Thiocarbamates, and Oxazolidinones. J Org Chem 2022; 87:11329-11349. [PMID: 35968929 DOI: 10.1021/acs.joc.2c00803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of the HCl or trifluoroacetic acid salts of primary amines with carbonyldiimidazole (CDI) is shown to be a preparatively useful method for forming monosubstituted carbamoylimidazoles (28 examples) without the formation of symmetrical urea side products. The utility of these air- and water-stable crystalline carbamoylimidazole reagents was demonstrated by their reactions as blocked or masked isocyanate equivalents. Reaction with various classes of nucleophiles provides access to useful functional groups including ureas, carbamates, thiocarbamates, hydantoins, and oxazolidinones. A parallel synthesis library of 30 ureas was generated by the reaction of 6× carbamoylimidazole intermediates with 5× amines and triethylamine. The unsymmetrical urea-containing natural products macaurea A and pygmaniline A were also prepared in good yields (95% over four steps and 79% over three steps, respectively) using this approach. The reaction of carbamoylimidazoles with amino acid methyl esters followed by microwave irradiation in aqueous media gives hydantoins in high yields, further demonstrating the ability of carbamoylimidazoles as isocyanate surrogates. Three hydantoin-containing natural products including macahydantoin D and meyeniihydantoin A were prepared in nearly quantitative yields from proline methyl ester and carbamoylimidazoles. The reaction of carbamoylimidazoles with alcohols and thiols under basic conditions affords carbamates and thiocarbamates, respectively, in good yields. Lastly, a method for the preparation of chiral oxazolidinone heterocycles from chiral epoxy alcohols is demonstrated using a double displacement approach. The reactions occur with high regio- and stereoselectivity (dr ≥ 15:1 by 1H NMR) via a domino attack of the corresponding alkoxides with carbamoylimidazoles followed by an intramolecular attack of the in situ generated urea anion at the proximal position of the epoxide group.
Collapse
Affiliation(s)
- Jazmin Bansagi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
| | - Cody Wilson-Konderka
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
| | - Vincent Debrauwer
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
| | - Pournima Narayanan
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
| | - Robert A Batey
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada, M5S 3H6
| |
Collapse
|
17
|
Campagna D, Göstl R. Mechanoresponsive Carbamoyloximes for the Activation of Secondary Amines in Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207557] [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)
- Davide Campagna
- DWI - Leibniz Institute for Interactive Materials Mechanoresponsive (bio)materials Forckenbeckstr. 50 52056 Aachen GERMANY
| | - Robert Göstl
- DWI-Leibniz-Institut für Interaktive Materialien: DWI-Leibniz-Institut fur Interaktive Materialien Mechanoresponsive (bio)materials Forckenbeckstr. 50 52056 Aachen GERMANY
| |
Collapse
|
18
|
Zhang X, Xu H, Su H, Yang X, Sun T, Lu X, Shi F, Duan H, Liu X, Ling Y. Design, Synthesis, and Biological Activity of Novel Fungicides Containing a 1,2,3,4-Tetrahydroquinoline Scaffold and Acting as Laccase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1776-1787. [PMID: 35128930 DOI: 10.1021/acs.jafc.1c06595] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Laccase is a novel target for fungicides. We previously developed a new fungicide, 4-chlorocinnamaldehyde thiosemicarbazide (PMDD-5Y), as a laccase inhibitor. The introduction of active groups of natural products into the framework of a pesticide molecular structure is an effective method for discovering active lead compounds, and it has applications in the discovery of new pesticides. In this work, PMDD-5Y was selected as a lead compound, and we designed and synthesized a series of novel sulfonyl hydrazide derivatives containing the natural product scaffold 1,2,3,4-tetrahydroquinoline. The new compounds had antifungal activities against several fungi, especially Valsa mali and Sclerotinia sclerotiorum. One compound (4bl) displayed very good in vitro activity against S. sclerotiorum and V. mali, with EC50 values of 3.32 and 2.78 μg/mL, respectively. The results of an enzyme activity assay showed that 4bh had the best inhibitory activity against laccase, with an EC50 value of 14.85 μg/mL. This was more active than the lead compound PMDD-5Y and the positive control cysteine. Using a molecular docking method, we studied the binding mode of the title compounds with laccase. The structural features of these new laccase inhibitors as fungicides will advance research and impact the field of discovering more potent fungicides to control diseases in agriculture.
Collapse
Affiliation(s)
- Xiaoming Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Huan Xu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Huifei Su
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xinling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Tengda Sun
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xingxing Lu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Fasheng Shi
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Hongxia Duan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712110, China
| | - Yun Ling
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| |
Collapse
|
19
|
Jiang Y, Li M, Liu S, Li R, Zheng Y, Song W, Zheng N. Synthesis and application of thiocarbamates via thiol-dioxazolone modified Lossen rearrangement. Chem Commun (Camb) 2022; 58:12353-12356. [DOI: 10.1039/d2cc05198b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiocarbamates afforded from thiol-dioxazolone modified Lossen rearrangement under mild conditions were further applied to prepare polythiocarbamates with self-healing properties.
Collapse
Affiliation(s)
- Yu Jiang
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Ming Li
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Shuxin Liu
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Rui Li
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yubin Zheng
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Wangze Song
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Nan Zheng
- Department of Polymer Science & Materials, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| |
Collapse
|
20
|
Malviya BK, Verma VP, Sharma S. Electrochemical metal- and oxidant-free synthesis of S-thiocarbamates. Org Biomol Chem 2021; 19:9491-9500. [PMID: 34709281 DOI: 10.1039/d1ob01701b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An expeditious synthetic strategy to access functionalized S-thiocarbamates was developed in good to excellent yields and with high current efficiencies. Readily available isocyanides and thiols were used as the starting materials under simple metal- and oxidant-free reaction conditions avoiding an inert atmosphere. The practical application of the present methodology was achieved by electrochemical synthesis of the herbicides prosulfocarb and pebulate. Furthermore, continuous electrochemical flow conditions using a graphite/Pt flow cell were used to obtain S-thiocarbamate compounds on a gram scale within a residence time of 35 min.
Collapse
Affiliation(s)
| | - Ved Prakash Verma
- Department of Chemistry, Banasthali University, Newai-Jodhpuriya Road, Vanasthali, 304022, India
| | - Siddharth Sharma
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, 313001, India.
| |
Collapse
|
21
|
Alsarraf J, Petitpoisson L, Pichette A. Catalytic Site-Selective Carbamoylation of Pyranosides. Org Lett 2021; 23:6052-6056. [PMID: 34283624 DOI: 10.1021/acs.orglett.1c02116] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbamate-bearing carbohydrates contribute to the pharmacological properties of various natural glycosides. The catalytic site-selective carbamoylation of minimally protected pyranosides was achieved for the first time to bypass protection/deprotection sequences. 1-Carbamoylimidazoles were used as the carbamoylation reagents to circumvent the harmful and unstable phosgene and isocyanates. This borinic acid catalyzed transformation granted an expedient access to the tumor cell-binding carbamoylmannoside moiety of bleomycins and analogs in yields of 56% to 89%.
Collapse
Affiliation(s)
- Jérôme Alsarraf
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 Boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| | - Lucas Petitpoisson
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 Boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| | - André Pichette
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 Boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| |
Collapse
|
22
|
Nair RV, Farrukh A, del Campo A. Light-Regulated Angiogenesis via a Phototriggerable VEGF Peptidomimetic. Adv Healthc Mater 2021; 10:e2100488. [PMID: 34110713 DOI: 10.1002/adhm.202100488] [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] [Received: 03/14/2021] [Revised: 05/06/2021] [Indexed: 12/31/2022]
Abstract
The application of growth factor based therapies in regenerative medicine is limited by the high cost, fast degradation kinetics, and the multiple functions of these molecules in the cell, which requires regulated delivery to minimize side effects. Here a photoactivatable peptidomimetic of the vascular endothelial growth factor (VEGF) that allows the light-controlled presentation of angiogenic signals to endothelial cells embedded in hydrogel matrices is presented. A photoresponsive analog of the 15-mer peptidomimetic Ac-KLTWQELYQLKYKGI-NH2 (abbreviated P QK) is prepared by introducing a 3-(4,5-dimethoxy-2-nitrophenyl)-2-butyl (DMNPB) photoremovable protecting group at the Trp4 residue. This modification inhibits the angiogenic potential of the peptide temporally. Light exposure of P QK modified hydrogels provide instructive cues to embedded endothelial cells and promote angiogenesis at the illuminated sites of the 3D culture, with the possibility of spatial control. P QK modified photoresponsive biomaterials offer an attractive approach for the dosed delivery and spatial control of pro-angiogenic factors to support regulated vascular growth by just using light as an external trigger.
Collapse
Affiliation(s)
- Roshna V. Nair
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
| | - Aleeza Farrukh
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
| | - Aránzazu del Campo
- INM − Leibniz Institute for New Materials Saarbrücken 66123 Germany
- Chemistry Department Saarland University Saarbrücken 66123 Germany
| |
Collapse
|
23
|
Rajappan K, Tanis SP, Roberts S, Karmali P, Chivukula P, Zhuang J, Xin M, Zheng M, Edmonds I. Development of a Safe and Scalable Process for the Production of a High-Purity Thiocarbamate-Based Ionizable Lipid as an Excipient in mRNA-Encapsulating Lipid Nanoparticles. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kumar Rajappan
- Arcturus Therapeutics Inc., 10628 Science Center Drive #250, San Diego, California 92121, United States
| | - Steven P. Tanis
- Arcturus Therapeutics Inc., 10628 Science Center Drive #250, San Diego, California 92121, United States
- SPTanis PharmaChem Consulting LLC, 1750 Oriole Court, Carlsbad, California 92011, United States
| | - Scott Roberts
- Arcturus Therapeutics Inc., 10628 Science Center Drive #250, San Diego, California 92121, United States
| | - Priya Karmali
- Arcturus Therapeutics Inc., 10628 Science Center Drive #250, San Diego, California 92121, United States
| | - Padmanabh Chivukula
- Arcturus Therapeutics Inc., 10628 Science Center Drive #250, San Diego, California 92121, United States
| | - Jin Zhuang
- Pharmaron Bejing Co., Ltd., (China), 6 Taihe Rd, BDA, Beijing 100176, P. R. China
| | - Mingxing Xin
- Pharmaron Bejing Co., Ltd., (China), 6 Taihe Rd, BDA, Beijing 100176, P. R. China
| | - Manman Zheng
- Pharmaron Bejing Co., Ltd., (China), 6 Taihe Rd, BDA, Beijing 100176, P. R. China
| | - Ian Edmonds
- Bridge Organics, 311 West Washington Street, Vicksburg, Michigan 49097, United States
| |
Collapse
|
24
|
Watson RB, Butler TW, DeForest JC. Preparation of Carbamates, Esters, Amides, and Unsymmetrical Ureas via Brønsted Acid-Activated N-Acyl Imidazoliums. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rebecca B. Watson
- Groton Laboratories, Pfizer Worldwide Research and Development, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Todd W. Butler
- Groton Laboratories, Pfizer Worldwide Research and Development, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jacob C. DeForest
- Groton Laboratories, Pfizer Worldwide Research and Development, 558 Eastern Point Road, Groton, Connecticut 06340, United States
| |
Collapse
|
25
|
Özgeriş B. Synthesis of potentially biologically active novel phenolic derivatives of unsymmetrical ureas from substituted phenethylamines. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02709-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
26
|
Szántó G, Makó A, Baska F, Bozó É, Domány-Kovács K, Kurkó D, Cselenyák A, Mohácsi R, Kordás KS, Bata I. New V1a receptor antagonist. Part 1. Synthesis and SAR development of urea derivatives. Bioorg Med Chem Lett 2020; 30:127416. [DOI: 10.1016/j.bmcl.2020.127416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 07/14/2020] [Indexed: 01/15/2023]
|
27
|
Dooley CJ, Burtea A, Mitilian C, Dao WT, Qu B, Salzameda NT, Rychnovsky SD. Using the Competing Enantioselective Conversion Method to Assign the Absolute Configuration of Cyclic Amines with Bode's Acylation Reagents. J Org Chem 2020; 85:10750-10759. [PMID: 32806106 DOI: 10.1021/acs.joc.0c01275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The competing enantioselective conversion (CEC) method is a quick and reliable means to determine absolute configuration. Previously, Bode's chiral acylated hydroxamic acids were used to determine the stereochemistry of primary amines, as well as cyclic and acyclic secondary amines. The enantioselective acylation has been evaluated for 4-, 5-, and 6-membered cyclic secondary amines, including medicinally relevant compounds. The limitations of the method were studied through computational analysis and experimental results. Piperidines with substituents at the 2-position did not behave well unless the axial conformer was energetically accessible, which is consistent with the transition state geometries proposed by Bode and Kozlowski. Control experiments were performed to investigate the cause of degrading selectivity under the CEC reaction conditions. The present study expands the scope of the CEC method for secondary amines and provides a better understanding of the reaction profile.
Collapse
Affiliation(s)
- Charles J Dooley
- Department of Chemistry, 1102 Natural Sciences II, University of California at Irvine, Irvine, California 92697, United States
| | - Alexander Burtea
- Department of Chemistry, 1102 Natural Sciences II, University of California at Irvine, Irvine, California 92697, United States
| | - Christina Mitilian
- Department of Chemistry, 1102 Natural Sciences II, University of California at Irvine, Irvine, California 92697, United States
| | - Wendy T Dao
- Department of Chemistry and Biochemistry, California State University Fullerton, Fullerton, California 92834, United States
| | - Bo Qu
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nicholas T Salzameda
- Department of Chemistry and Biochemistry, California State University Fullerton, Fullerton, California 92834, United States
| | - Scott D Rychnovsky
- Department of Chemistry, 1102 Natural Sciences II, University of California at Irvine, Irvine, California 92697, United States
| |
Collapse
|
28
|
Khalaj M. Synthesis of carbamothioate derivatives via a copper catalyzed thiocarboxamidation of aryl iodides. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02613-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
29
|
Ghasemi S, Sharifi S, Shahbazi Mojarrad J. Design, Synthesis and Biological Evaluation of Novel Piperazinone Derivatives as Cytotoxic Agents. Adv Pharm Bull 2020; 10:423-429. [PMID: 32665901 PMCID: PMC7335995 DOI: 10.34172/apb.2020.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 11/23/2019] [Accepted: 12/08/2019] [Indexed: 11/09/2022] Open
Abstract
Purpose: In this study, a series of piperazin-2-one derivatives were prepared through bioisosteric substitution of the imidazole ring of L-778,123 (imidazole-containing FTase inhibitor) and rearrangement of groups based on the tipifarnib structure. Final compounds were evaluated for their cytotoxic activities on cancer and normal cell lines by MTT assay. Methods: Methyl α-bromophenylacetic acid and 1-(3-chlorophenyl) piperazin-2-one were synthesized using previously described methods. Methyl 2-(4-chlorophenyl)-2-(4-(3- chlorophenyl)-3-oxopiperazin-1-yl) acetate was prepared by reaction between these two compounds in presence of potassium carbonate. Finally, methoxy group of ester was substituted by various amines such as guanidine, thiourea, urea and hydrazide. The synthesized compounds were tested for their cytotoxicity against colon cancer (HT-29) and lung cancer (A549) cell lines as well as MRC-5 (normal fetal lung fibroblasts) cells as a healthy cell line using MTT colorimetric assay method. Results: Replacement of imidazole moiety with guanidine, thiourea, and hydrazide could increase cytotoxicity toward all three cell lines. Some substituents, such as amine, urea, and hydroxylamine exhibited significant cytotoxicity (<500 µM) but lower than L-778,123 as standard compound. Hydroxyl and methoxy substituents did not show significant cytotoxicity. Imidazole substituent group revealed cytotoxicity similar to L-778,123 All compounds showed lower cytotoxic activity against normal cell lines compared with cancer cell lines. Conclusion: It seems the electron density of substituted groups and rearrangement of groups may significantly increase cytotoxic activity.
Collapse
Affiliation(s)
- Saeed Ghasemi
- Department of Medicinal Chemistry, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Simin Sharifi
- Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javid Shahbazi Mojarrad
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
30
|
Riomet M, Porte K, Madegard L, Thuéry P, Audisio D, Taran F. Access to N-Carbonyl Derivatives of Iminosydnones by Carbonylimidazolium Activation. Org Lett 2020; 22:2403-2408. [PMID: 32155081 DOI: 10.1021/acs.orglett.0c00600] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A new methodology for N-exocyclic functionalization of iminosydnones was developed involving the addition of a large variety of nucleophiles on carbonyl-imidazolium-activated iminosydnones. This practical and highly versatile method provided access to new classes of iminosydnones and opened a straightforward synthetic route to prepare iminosydnone-based prodrugs.
Collapse
Affiliation(s)
- Margaux Riomet
- Université Paris-Saclay, Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, 91191 Gif-sur-Yvette, France
| | - Karine Porte
- Université Paris-Saclay, Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, 91191 Gif-sur-Yvette, France
| | - Léa Madegard
- Université Paris-Saclay, Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- Université Paris-Saclay, NIMBE, CEA, CNRS, CEA-Saclay, 91191 Gif-sur-Yvette, France
| | - Davide Audisio
- Université Paris-Saclay, Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, 91191 Gif-sur-Yvette, France
| | - Frédéric Taran
- Université Paris-Saclay, Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, 91191 Gif-sur-Yvette, France
| |
Collapse
|
31
|
Haque N, Biswas S, Basu P, Haque Biswas I, Khatun R, Khan A, Islam SM. Triazinetriamine-derived porous organic polymer-supported copper nanoparticles (Cu-NPs@TzTa-POP): an efficient catalyst for the synthesis of N-methylated products via CO 2 fixation and primary carbamates from alcohols and urea. NEW J CHEM 2020. [DOI: 10.1039/d0nj02798g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Copper nanoparticles incorporated triazinetriamine derived porous organic polymer based catalyst was synthesized for catalytic production N-methylated amines and primary carbamates.
Collapse
Affiliation(s)
- Najirul Haque
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | - Surajit Biswas
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | - Priyanka Basu
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | | | - Resmin Khatun
- Department of Chemistry
- University of Kalyani
- Nadia 741235
- India
| | - Aslam Khan
- King Abdullah Institute for Nanotechnology
- King Saud University
- Riyadh
- Saudi Arabia
| | | |
Collapse
|
32
|
Abstract
The urea functionality is inherent to numerous bioactive compounds, including a variety of clinically approved therapies. Urea containing compounds are increasingly used in medicinal chemistry and drug design in order to establish key drug-target interactions and fine-tune crucial drug-like properties. In this perspective, we highlight physicochemical and conformational properties of urea derivatives. We provide outlines of traditional reagents and chemical procedures for the preparation of ureas. Also, we discuss newly developed methodologies mainly aimed at overcoming safety issues associated with traditional synthesis. Finally, we provide a broad overview of urea-based medicinally relevant compounds, ranging from approved drugs to recent medicinal chemistry developments.
Collapse
Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States.,Department of Excellence of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| |
Collapse
|
33
|
Dindarloo Inaloo I, Majnooni S. Deep Eutectic Solvents (DES) as Green and Efficient Solvent/Catalyst Systems for the Synthesis of Carbamates and Ureas from Carbonates. ChemistrySelect 2019. [DOI: 10.1002/slct.201901567] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Sahar Majnooni
- Chemistry DepartmentUniversity of Isfahan Isfahan 81746–73441 Iran
| |
Collapse
|
34
|
Venter J, Perez C, van Otterlo WA, Martínez A, Blackie MA. 1-Aryl-3-(4-methoxybenzyl)ureas as potentially irreversible glycogen synthase kinase 3 inhibitors: Synthesis and biological evaluation. Bioorg Med Chem Lett 2019; 29:1597-1600. [DOI: 10.1016/j.bmcl.2019.04.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/25/2019] [Accepted: 04/27/2019] [Indexed: 10/26/2022]
|
35
|
Lu C, Hu L, Zhao B, Yao Y. Addition of Thiols to Isocyanates Catalyzed by Simple Rare-Earth-Metal Amides: Synthesis of S-Alkyl Thiocarbamates and Dithiocarbamates. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00147] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
36
|
Roopesh Kumar L, Panduranga V, Vishwanatha TM, Shekharappa, Sureshbabu VV. Synthesis of thioureido peptidomimetics employing alkyl azides and dithiocarbamates. Org Biomol Chem 2019. [PMID: 29528353 DOI: 10.1039/c8ob00239h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An unprecedented approach for the assembly of thioureido peptidomimetics is developed employing alkyl azides and dithiocarbamates. Dithiocarbamates react with alkyl azides with the liberation of N2 and elemental sulfur thereby leading to thiourea in a traceless manner. Thioureido peptidomimetics are thus furnished in good yields with no epimerization. This process is mild, free from the use of a base, scalable and step economic. The practicability of this methodology has been highlighted by the synthesis of N,N'-orthogonally protected thioureido peptidomimetics.
Collapse
Affiliation(s)
- L Roopesh Kumar
- Room No. 109, Peptide Research Laboratory, Department of Studies in Chemistry, Central College Campus, Dr. B. R. Ambedkar Veedhi, Bangalore University, Bangalore, 560001, India.
| | | | | | | | | |
Collapse
|
37
|
Qiao J, Zhao C, Liu J, Du Y. Design and synthesis of selenazole-substituted ritonavir analogs. Bioorg Med Chem Lett 2018; 28:2379-2381. [DOI: 10.1016/j.bmcl.2018.06.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/01/2018] [Accepted: 06/14/2018] [Indexed: 11/25/2022]
|
38
|
Inaloo ID, Majnooni S, Esmaeilpour M. Superparamagnetic Fe3
O4
Nanoparticles in a Deep Eutectic Solvent: An Efficient and Recyclable Catalytic System for the Synthesis of Primary Carbamates and Monosubstituted Ureas. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800581] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iman Dindarloo Inaloo
- Chemistry Department; College of Sciences; Shiraz University; 71946 84795 Shiraz Iran
| | - Sahar Majnooni
- Chemistry Department; University of Isfahan; 81746-73441 Isfahan Iran
| | - Mohsen Esmaeilpour
- Chemistry Department; College of Sciences; Shiraz University; 71946 84795 Shiraz Iran
| |
Collapse
|
39
|
Beutner GL, Young IS, Davies ML, Hickey MR, Park H, Stevens JM, Ye Q. TCFH-NMI: Direct Access to N-Acyl Imidazoliums for Challenging Amide Bond Formations. Org Lett 2018; 20:4218-4222. [PMID: 29956545 DOI: 10.1021/acs.orglett.8b01591] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Challenging couplings of hindered carboxylic acids with non-nucleophilic amines to form amide bonds can be accomplished in high yields, and in many cases, with complete retention of the adjacent stereogenic centers using the combination of N, N, N', N'-tetramethylchloroformamidinium hexafluorophosphate (TCFH) and N-methylimidazole (NMI). This method allows for in situ generation of highly reactive acyl imidazolium ions, which have been demonstrated to be intermediates in the reaction. The reagent delivers high reactivity similar to acid chlorides with the ease of use of modern uronium reagents.
Collapse
Affiliation(s)
- Gregory L Beutner
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Ian S Young
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Merrill L Davies
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Matthew R Hickey
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Hyunsoo Park
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Jason M Stevens
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Qingmei Ye
- Chemical and Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| |
Collapse
|
40
|
Highly efficient synthesis of alkyl and aryl primary thiocarbamates and dithiocarbamates under metal- and solvent-free conditions. Mol Divers 2018; 22:863-878. [DOI: 10.1007/s11030-018-9831-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 05/04/2018] [Indexed: 12/11/2022]
|
41
|
Inaloo ID, Majnooni S. Eco-Efficient Ultrasonic-Responsive Synthesis of PrimaryO-Alkyl andO-Aryl Thiocarbamates Using Brønsted Acid Ionic Liquid [H-NMP][HSO4] in Aqueous Media at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201800107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Iman Dindarloo Inaloo
- Chemistry Department; College of Sciences; Shiraz University; Shiraz 71946 84795 Iran
| | - Sahar Majnooni
- Chemistry Department; University of Isfahan; Isfahan 81746-73441 Iran
| |
Collapse
|
42
|
King K, Hauser AT, Melesina J, Sippl W, Jung M. Carbamates as Potential Prodrugs and a New Warhead for HDAC Inhibition. Molecules 2018; 23:E321. [PMID: 29393896 PMCID: PMC6017415 DOI: 10.3390/molecules23020321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 01/25/2018] [Accepted: 01/31/2018] [Indexed: 11/25/2022] Open
Abstract
We designed and synthesized carbamates of the clinically-approved HDAC (histone deacetylase) inhibitor vorinostat (suberoylanilide hydroxamic acid, SAHA) in order to validate our previously-proposed hypothesis that these carbamates might serve as prodrugs for hydroxamic acid containing HDAC inhibitors. Biochemical assays proved our new compounds to be potent inhibitors of histone deacetylases in vitro, and they also showed antiproliferative effects in leukemic cells. These results, as well as stability analysis led to the suggestion that the intact carbamates are inhibitors of histone deacetylases themselves, representing a new zinc-binding warhead in HDAC inhibitor design. This suggestion was further supported by the synthesis and evaluation of a carbamate derivative of the HDAC6-selective inhibitor bufexamac.
Collapse
Affiliation(s)
- Kristina King
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, Albertstraße 25, 79104 Freiburg im Breisgau, Germany.
| | - Alexander-Thomas Hauser
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, Albertstraße 25, 79104 Freiburg im Breisgau, Germany.
| | - Jelena Melesina
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle (Saale), Germany.
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle (Saale), Germany.
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University Freiburg, Albertstraße 25, 79104 Freiburg im Breisgau, Germany.
| |
Collapse
|
43
|
Pathare RS, Patil V, Kaur H, Maurya AK, Agnihotri VK, Khan S, Devunuri N, Sharon A, Sawant DM. Iodine-catalyzed cross-coupling of isocyanides and thiols for the synthesis of S-thiocarbamates. Org Biomol Chem 2018; 16:8263-8266. [DOI: 10.1039/c8ob01855c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Synthesis of S-thiocarbamates by employing simple and readily available precursors under mild reaction conditions with good to excellent yields.
Collapse
Affiliation(s)
- Ramdas S. Pathare
- School of Chemical Sciences and Pharmacy
- Central University of Rajasthan
- Ajmer-305817
- India
| | - Vikas Patil
- Vignans Foundation for Science
- Technology & Research
- Guntur-522 213
- India
| | - Harpreet Kaur
- Department of Chemistry
- Birla Institute of Technology
- Ranchi
- India
| | - Antim K. Maurya
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
| | - Vijai K. Agnihotri
- Natural Product Chemistry and Process Development Division
- CSIR-Institute of Himalayan Bioresource Technology
- Palampur
- India
| | - Shahnawaz Khan
- Department of Chemistry
- Bhupal Noble's University
- Udaipur-313001
- India
| | - Nagaraju Devunuri
- Vignans Foundation for Science
- Technology & Research
- Guntur-522 213
- India
| | - Ashoke Sharon
- Department of Chemistry
- Birla Institute of Technology
- Ranchi
- India
| | - Devesh M. Sawant
- School of Chemical Sciences and Pharmacy
- Central University of Rajasthan
- Ajmer-305817
- India
| |
Collapse
|
44
|
Nugent J, Campbell SG, Vo Y, Schwartz BD. Solvent-Free Synthesis of Cyanoformamides from Carbamoyl Imidazoles. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700974] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jeremy Nugent
- Research School of Chemistry; Institute of Advanced Studies; The Australian National University; ACT 2601 Canberra Australia
| | - Sarah G. Campbell
- Research School of Chemistry; Institute of Advanced Studies; The Australian National University; ACT 2601 Canberra Australia
| | - Yen Vo
- Research School of Chemistry; Institute of Advanced Studies; The Australian National University; ACT 2601 Canberra Australia
| | - Brett D. Schwartz
- Research School of Chemistry; Institute of Advanced Studies; The Australian National University; ACT 2601 Canberra Australia
- Griffith Institute for Drug Discovery; Institute of Advanced Studies; Griffith University; Don Young Road QLD 4111 Nathan Australia
| |
Collapse
|
45
|
Shahsavari S, Gooding J, Wigstrom T, Fang S. Formation of Hindered Arylcarbamates using Alkyl Aryl Carbonates under Highly Reactive Conditions. ChemistrySelect 2017; 2:3959-3963. [PMID: 29098174 PMCID: PMC5662102 DOI: 10.1002/slct.201700364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/03/2017] [Indexed: 12/30/2022]
Abstract
Hindered O-tert-alkyl N-arylcarbamates were conveniently prepared by treating arylamines with aryl tert-alkyl carbonates in the presence of a strong base. The new method avoids the use of sensitive and difficult-to-access dialkyl dicarbonates and isocyanates, which are most commonly used in known methods. Instead, the stable and readily accessible alkyl aryl carbonates are used. Therefore, the new method is particularly suitable for the synthesis of N-arylcarbamates that contain a complex O-alkyl moiety. Using the method, electron-rich and electron-poor, and primary and secondary arylamines can all be conveniently converted to their carbamates with acceptable yields. The method was also found equally effective for the synthesis of the less hindered O-secondary and O-primary alkyl N-arylcarbamates.
Collapse
Affiliation(s)
- Shahien Shahsavari
- Department of Chemistry Michigan Technological University 1400 Townsend Drive, Houghton, MI 49931
| | - James Gooding
- Department of Chemistry Michigan Technological University 1400 Townsend Drive, Houghton, MI 49931
| | - Travis Wigstrom
- Department of Chemistry Michigan Technological University 1400 Townsend Drive, Houghton, MI 49931
| | - Shiyue Fang
- Department of Chemistry Michigan Technological University 1400 Townsend Drive, Houghton, MI 49931
| |
Collapse
|
46
|
de Figueiredo RM, Suppo JS, Midrier C, Campagne JM. Sequential One-Pot Synthesis of Dipeptides through the Transient Formation of CDI-N
-Protected α-Aminoesters. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Renata Marcia de Figueiredo
- Institut Charles Gerhardt Montpellier; UMR 5253 CNRS-UM-ENSCM; Ecole Nationale Supérieure de Chimie de Montpellier; 8 Rue de l'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Jean-Simon Suppo
- Institut Charles Gerhardt Montpellier; UMR 5253 CNRS-UM-ENSCM; Ecole Nationale Supérieure de Chimie de Montpellier; 8 Rue de l'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Camille Midrier
- Institut Charles Gerhardt Montpellier; UMR 5253 CNRS-UM-ENSCM; Ecole Nationale Supérieure de Chimie de Montpellier; 8 Rue de l'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt Montpellier; UMR 5253 CNRS-UM-ENSCM; Ecole Nationale Supérieure de Chimie de Montpellier; 8 Rue de l'Ecole Normale 34296 Montpellier Cedex 5 France
| |
Collapse
|
47
|
Young CM, Stark DG, West TH, Taylor JE, Smith AD. Exploiting the Imidazolium Effect in Base-free Ammonium Enolate Generation: Synthetic and Mechanistic Studies. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608046] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Claire M. Young
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Daniel G. Stark
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Thomas H. West
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - James E. Taylor
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Andrew D. Smith
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| |
Collapse
|
48
|
Young CM, Stark DG, West TH, Taylor JE, Smith AD. Exploiting the Imidazolium Effect in Base-free Ammonium Enolate Generation: Synthetic and Mechanistic Studies. Angew Chem Int Ed Engl 2016; 55:14394-14399. [DOI: 10.1002/anie.201608046] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 09/22/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Claire M. Young
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Daniel G. Stark
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Thomas H. West
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - James E. Taylor
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| | - Andrew D. Smith
- EaStCHEM, School of Chemistry; University of St Andrews; North Haugh St Andrews Fife KY16 9ST UK
| |
Collapse
|
49
|
Konnert L, Gonnet L, Halasz I, Suppo JS, de Figueiredo RM, Campagne JM, Lamaty F, Martinez J, Colacino E. Mechanochemical Preparation of 3,5-Disubstituted Hydantoins from Dipeptides and Unsymmetrical Ureas of Amino Acid Derivatives. J Org Chem 2016; 81:9802-9809. [DOI: 10.1021/acs.joc.6b01832] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laure Konnert
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS, ENSCM, Place
E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Lori Gonnet
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS, ENSCM, Place
E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Ivan Halasz
- Ruđer Bošković Institute, Bijenička cesta 54, Zagreb, Croatia
| | - Jean-Simon Suppo
- Institut Charles Gerhardt Montpellier (ICGM), UMR 5253 CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie, 8 Rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Renata Marcia de Figueiredo
- Institut Charles Gerhardt Montpellier (ICGM), UMR 5253 CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie, 8 Rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt Montpellier (ICGM), UMR 5253 CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie, 8 Rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Fredéric Lamaty
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS, ENSCM, Place
E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Jean Martinez
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS, ENSCM, Place
E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| | - Evelina Colacino
- Université de Montpellier, Institut des Biomolécules Max Mousseron UMR 5247 CNRS, ENSCM, Place
E. Bataillon, Campus Triolet, cc 1703, 34095 Montpellier, France
| |
Collapse
|
50
|
Lu Y, Hou C, Ren J, Xin X, Xu H, Pei Y, Dong H, Pei Z. Regioselective Benzoylation of Diols and Carbohydrates by Catalytic Amounts of Organobase. Molecules 2016; 21:E641. [PMID: 27196888 PMCID: PMC6274181 DOI: 10.3390/molecules21050641] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 04/21/2016] [Accepted: 05/10/2016] [Indexed: 11/26/2022] Open
Abstract
A novel metal-free organobase-catalyzed regioselective benzoylation of diols and carbohydrates has been developed. Treatment of diol and carbohydrate substrates with 1.1 equiv. of 1-benzoylimidazole and 0.2 equiv. of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in MeCN under mild conditions resulted in highly regioselective benzoylation for the primary hydroxyl group. Importantly, compared to most commonly used protecting bulky groups for primary hydroxyl groups, the benzoyl protective group offers a new protection strategy.
Collapse
Affiliation(s)
- Yuchao Lu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Chenxi Hou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Jingli Ren
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Xiaoting Xin
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Hengfu Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Yuxin Pei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| | - Hai Dong
- School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, China.
| | - Zhichao Pei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A & F University, Yangling 712100, China.
| |
Collapse
|