1
|
Grytsai O, Hamouda-Tekaya N, Botton T, Rocchi S, Benhida R, Ronco C. Design, Synthesis and Biological Evaluation of Novel Anticancer Amidinourea Analogues via Unexpected 1,3,5-Triazin-2-one Ring Opening. ChemMedChem 2024; 19:e202300493. [PMID: 38126619 DOI: 10.1002/cmdc.202300493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
Amidinoureas are an understudied class of molecules with unique structural properties and biological activities. A simple methodology has been developed for the synthesis of aliphatic substituted amidinoureas via unexpected cycle opening of benzothiazolo-1,3,5-triazine-2-ones and transamination reaction of N-(N-(benzo[d]thiazol-2-yl)carbamimidoyl)aniline-1-carboxamide in good yields. A novel series of amidinoureas derivatives was designed, synthesized, and evaluated for its antiproliferative activity on an aggressive metastatic melanoma A375 cell line model. This evaluation reveals antiproliferative activities in the low micromolar range and establishes a first structure-activity relationship. In addition, analogues selected for their structural diversity were assayed on a panel of cancer cell lines through the DTP-NCI60, on which they showed effectiveness on various cancer types, with promising activities on melanoma cells for two hit compounds. This work paves the way for further optimization of this family of compounds towards the development of potent antimelanoma agents.
Collapse
Affiliation(s)
- Oleksandr Grytsai
- Institut de Chimie de Nice CRNS UMR7272, Université Côte d'Azur, 28 Avenue Valrose, 06108, Nice, France
| | - Nedra Hamouda-Tekaya
- Centre Méditerranéen de Médecine Moléculaire (C3M) - INSERM, U1065, Université Côte d'Azur, 151 Route de Saint-Antoine, 06200, Nice, France
| | - Thomas Botton
- Centre Méditerranéen de Médecine Moléculaire (C3M) - INSERM, U1065, Université Côte d'Azur, 151 Route de Saint-Antoine, 06200, Nice, France
| | - Stéphane Rocchi
- Centre Méditerranéen de Médecine Moléculaire (C3M) - INSERM, U1065, Université Côte d'Azur, 151 Route de Saint-Antoine, 06200, Nice, France
| | - Rachid Benhida
- Institut de Chimie de Nice CRNS UMR7272, Université Côte d'Azur, 28 Avenue Valrose, 06108, Nice, France
- Mohamed VI Polytechnic University, UM6P, 43150, Ben Guerir, Morocco
| | - Cyril Ronco
- Institut de Chimie de Nice CRNS UMR7272, Université Côte d'Azur, 28 Avenue Valrose, 06108, Nice, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75005, Paris, France
| |
Collapse
|
2
|
Li J, Xiao W, Wei W, Wu M, Xiong K, Lyu J, Li Y. HSPA5, as a ferroptosis regulator, may serve as a potential therapeutic for head and neck squamous cell carcinoma. Mol Immunol 2023; 158:79-90. [PMID: 37172353 DOI: 10.1016/j.molimm.2023.05.001] [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: 12/03/2022] [Revised: 04/09/2023] [Accepted: 05/04/2023] [Indexed: 05/14/2023]
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is a ferroptosis sensitive tumor type with high mortality rate. However, it remains largely unknown whether ferroptosis influences the tumor cell in HNSCC. MATERIALS AND METHODS To investigate how ferroptosis regulators were differentially expressed between normal and tumor tissue, data related to HNSCC was downloaded from The Cancer Genome Atlas. The expression levels of key factors in HNSCC and the relationship between key factors and ferroptosis in HNSCC were conducted in vitro, and then analyzed to correlate with the differences in prognosis and survival. This was then combined with TNM staging data, and the migration effects of key factors in HNSCC were verified by scratch test and transwell test. RESULTS In this study, gene expression analysis and correlation studies between genes showed that HSPA5 was a potentially key associated ferroptosis regulator in HNSCC. Bioinformatics analysis showed that high expression of HSPA5 in HNSCC was positively correlated with poor prognosis and distal metastasis of HNSCC. In vitro immunohistochemistry and western blot tests confirmed that HSPA5 was highly expressed in HNSCC tissues and cell lines. In vitro inhibition of HSPA5 reduced the viability of HNSCC cells and increased ferroptosis. The results of scratch, transwell, and immunofluorescence tests showed that HSPA5 was related to the migration of HNSCC. In addition, a pan-cancer analysis showed that HSPA5 was also overexpressed in many types of cancer with poor prognoses. CONCLUSION In total, our study demonstrates the critical role of ferroptosis regulators in HNSCC and that HSPA5, as a ferroptosis regulator, can be regarded as a key molecular target for designing new therapeutic regimens to control HNSCC metastasis and progression.
Collapse
Affiliation(s)
- Jia Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wenke Xiao
- School of Intelligent Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wei Wei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Miaomiao Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Kaixin Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jinglu Lyu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| |
Collapse
|
3
|
Development and in vivo evaluation of fused benzazole analogs of anti-melanoma agent HA15. Future Med Chem 2021; 13:1157-1173. [PMID: 34096325 DOI: 10.4155/fmc-2021-0001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background: In line with our recent discovery of an efficient anticancer thiazolebenzenesulfonamide framework HA15 (1) based on a remarkable endoplasmic reticulum stress inducement mode of action, we report herein a series of innovative constrained HA15 analogs, featuring four types of bicylic derivatives. Results: The structure-activity relationship analysis, using a cell line assay, led us to identify a novel version of HA15: a new benzothiazole derivative (10b) exhibiting important anti-melanoma effect against sensitive and resistant melanoma cells. Meanwhile, compound 10b induced a significant tumor growth inhibition in vivo with no apparent signs of toxicity. Conclusion: These results consistently open new directions to improve and develop more powerful anticancer therapeutics harboring this type of fused framework.
Collapse
|
4
|
Grytsai O, Valiashko O, Penco-Campillo M, Dufies M, Hagege A, Demange L, Martial S, Pagès G, Ronco C, Benhida R. Synthesis and biological evaluation of 3-amino-1,2,4-triazole derivatives as potential anticancer compounds. Bioorg Chem 2020; 104:104271. [PMID: 32992279 DOI: 10.1016/j.bioorg.2020.104271] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/04/2020] [Accepted: 09/05/2020] [Indexed: 12/20/2022]
Abstract
Two series of compounds carrying 3-amino-1,2,4-triazole scaffold were synthesized and evaluated for their anticancer activity against a panel of cancer cell lines using XTT assay. The 1,2,4-triazole synthesis was revisited for the first series of pyridyl derivatives. The biological results revealed the efficiency of the 3-amino-1,2,4-triazole core that could not be replaced and a clear beneficial effect of a 3-bromophenylamino moiety in position 3 of the triazole for both series (compounds 2.6 and 4.6) on several cell lines tested. Moreover, our results point out an antiangiogenic activity of these compounds. Overall, the 5-aryl-3-phenylamino-1,2,4-triazole structure has promising dual anticancer activity.
Collapse
Affiliation(s)
- Oleksandr Grytsai
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 28 Avenue Valrose, 06108 Nice, France
| | - Oksana Valiashko
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 28 Avenue Valrose, 06108 Nice, France
| | - Manon Penco-Campillo
- Université Côte d'Azur, CNRS UMR 7284 and INSERM U 1081, Institute for Research on Cancer and Aging (IRCAN), 28 Avenue de Valombrose, 06107 Nice, France
| | - Maeva Dufies
- Centre Scientifique de Monaco, Biomedical Department, Monaco
| | - Anais Hagege
- Université Côte d'Azur, CNRS UMR 7284 and INSERM U 1081, Institute for Research on Cancer and Aging (IRCAN), 28 Avenue de Valombrose, 06107 Nice, France
| | - Luc Demange
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 28 Avenue Valrose, 06108 Nice, France; Université de Paris, CiTCoM, UMR CNRS 8038, Faculté de Pharmacie, F-75006 Paris, France
| | - Sonia Martial
- Université Côte d'Azur, CNRS UMR 7284 and INSERM U 1081, Institute for Research on Cancer and Aging (IRCAN), 28 Avenue de Valombrose, 06107 Nice, France
| | - Gilles Pagès
- Université Côte d'Azur, CNRS UMR 7284 and INSERM U 1081, Institute for Research on Cancer and Aging (IRCAN), 28 Avenue de Valombrose, 06107 Nice, France; Centre Scientifique de Monaco, Biomedical Department, Monaco
| | - Cyril Ronco
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 28 Avenue Valrose, 06108 Nice, France.
| | - Rachid Benhida
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 28 Avenue Valrose, 06108 Nice, France; Mohamed VI Polytechnic University, UM6P, 43150, Ben Guerir, Morocco.
| |
Collapse
|
5
|
Yan B, Wang H, Tan Y, Fu W. microRNAs in Cardiovascular Disease: Small Molecules but Big Roles. Curr Top Med Chem 2019; 19:1918-1947. [PMID: 31393249 DOI: 10.2174/1568026619666190808160241] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/01/2019] [Accepted: 07/25/2019] [Indexed: 01/01/2023]
Abstract
microRNAs (miRNAs) are an evolutionarily conserved class of small single-stranded noncoding RNAs. The aberrant expression of specific miRNAs has been implicated in the development and progression of diverse cardiovascular diseases. For many decades, miRNA therapeutics has flourished, taking advantage of the fact that miRNAs can modulate gene expression and control cellular phenotypes at the posttranscriptional level. Genetic replacement or knockdown of target miRNAs by chemical molecules, referred to as miRNA mimics or inhibitors, has been used to reverse their abnormal expression as well as their adverse biological effects in vitro and in vivo in an effort to fully implement the therapeutic potential of miRNA-targeting treatment. However, the limitations of the chemical structure and delivery systems are hindering progress towards clinical translation. Here, we focus on the regulatory mechanisms and therapeutic trials of several representative miRNAs in the context of specific cardiovascular diseases; from this basic perspective, we evaluate chemical modifications and delivery vectors of miRNA-based chemical molecules and consider the underlying challenges of miRNA therapeutics as well as the clinical perspectives on their applications.
Collapse
Affiliation(s)
- Bingqian Yan
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Huijing Wang
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yao Tan
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei Fu
- Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Department of Pediatric Cardiothoracic Surgery, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Shanghai Key Laboratory of Tissue Engineering, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| |
Collapse
|
6
|
Bailly C, Waring MJ. Pharmacological effectors of GRP78 chaperone in cancers. Biochem Pharmacol 2019; 163:269-278. [PMID: 30831072 DOI: 10.1016/j.bcp.2019.02.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 02/28/2019] [Indexed: 12/21/2022]
Abstract
The protein chaperone GRP78 is a master regulator of endoplasmic reticulum (ER) functions and is frequently over-expressed at the surface of cancer cells where it contributes to chemo-resistance. It represents a well-studied ER stress marker but an under-explored target for new drug development. This review aims to untangle the structural and functional diversity of GRP78 modulators, covering over 130 natural products, synthetic molecules, specific peptides and monoclonal antibodies that target GRP78. Several approaches to promote or to incapacitate GRP78 are presented, including the use of oligonucleotides and specific cell-delivery peptides often conjugated to cytotoxic payloads to design GRP78-targeted therapeutics. A repertoire of drugs that turn on/off GRP78 is exposed, including molecules which bind directly to GRP78, principally to its ATP site. There exist many options to regulate positively or negatively the expression of the chaperone, or to interfere with its cellular trafficking. This review provides a molecular cartography of GRP78 pharmacological effectors and adds weight to the notion that GRP78 repressors could represent promising anticancer therapeutics, notably as regards limiting chemo-resistance of cancer cells. The potential of GRP78-targeting drugs in other therapeutic modalities is also evoked.
Collapse
Affiliation(s)
- Christian Bailly
- UMR-S 1172, Centre de Recherche Jean-Pierre Aubert, INSERM, University of Lille, CHU Lille, 59045 Lille, France.
| | - Michael J Waring
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1GA, UK
| |
Collapse
|
7
|
Zhang G, Wang X, Gillette TG, Deng Y, Wang ZV. Unfolded Protein Response as a Therapeutic Target in Cardiovascular Disease. Curr Top Med Chem 2019; 19:1902-1917. [PMID: 31109279 PMCID: PMC7024549 DOI: 10.2174/1568026619666190521093049] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 04/09/2019] [Accepted: 05/02/2019] [Indexed: 12/15/2022]
Abstract
Cardiovascular disease is the leading cause of death worldwide. Despite overwhelming socioeconomic impact and mounting clinical needs, our understanding of the underlying pathophysiology remains incomplete. Multiple forms of cardiovascular disease involve an acute or chronic disturbance in cardiac myocytes, which may lead to potent activation of the Unfolded Protein Response (UPR), a cellular adaptive reaction to accommodate protein-folding stress. Accumulation of unfolded or misfolded proteins in the Endoplasmic Reticulum (ER) elicits three signaling branches of the UPR, which otherwise remain quiescent. This ER stress response then transiently suppresses global protein translation, augments production of protein-folding chaperones, and enhances ER-associated protein degradation, with an aim to restore cellular homeostasis. Ample evidence has established that the UPR is strongly induced in heart disease. Recently, the mechanisms of action and multiple pharmacological means to favorably modulate the UPR are emerging to curb the initiation and progression of cardiovascular disease. Here, we review the current understanding of the UPR in cardiovascular disease and discuss existing therapeutic explorations and future directions.
Collapse
Affiliation(s)
- Guangyu Zhang
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Xiaoding Wang
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Thomas G. Gillette
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Yingfeng Deng
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| | - Zhao V. Wang
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States
| |
Collapse
|
8
|
Ruggiero C, Doghman-Bouguerra M, Ronco C, Benhida R, Rocchi S, Lalli E. The GRP78/BiP inhibitor HA15 synergizes with mitotane action against adrenocortical carcinoma cells through convergent activation of ER stress pathways. Mol Cell Endocrinol 2018; 474:57-64. [PMID: 29474877 DOI: 10.1016/j.mce.2018.02.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/10/2018] [Accepted: 02/18/2018] [Indexed: 01/28/2023]
Abstract
Many types of cancer cells present constitutively activated ER stress pathways because of their significant burden of misfolded proteins coded by mutated and rearranged genes. Further increase of ER stress by pharmacological intervention may shift the balance towards cell death and can be exploited therapeutically. Recent studies have shown that an important component in the mechanism of action of mitotane, the only approved drug for the medical treatment of adrenocortical carcinoma (ACC), is represented by activation of ER stress through inhibition of the SOAT1 enzyme and accumulation of toxic lipids. Here we show that HA15, a novel inhibitor of the essential ER chaperone GRP78/BiP, inhibits ACC H295R cell proliferation and steroidogenesis and is able to synergize with mitotane action. These results suggest that convergent activation of ER stress pathways by drugs acting via different mechanisms represents a valuable therapeutic option for ACC.
Collapse
Affiliation(s)
- Carmen Ruggiero
- Université Côte d'Azur, Valbonne, 06560, France; CNRS UMR 7275, Sophia Antipolis, Valbonne, 06560, France; NEOGENEX CNRS International Associated Laboratory, Valbonne, 06560, France; Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, 06560, France
| | - Mabrouka Doghman-Bouguerra
- Université Côte d'Azur, Valbonne, 06560, France; CNRS UMR 7275, Sophia Antipolis, Valbonne, 06560, France; NEOGENEX CNRS International Associated Laboratory, Valbonne, 06560, France; Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, 06560, France
| | - Cyril Ronco
- Université Côte d'Azur, Valbonne, 06560, France; Faculté des Sciences, Institut de Chimie de Nice (ICN) - CNRS UMR 7272, 28, Avenue de Valrose, Nice, 06108, France
| | - Rachid Benhida
- Université Côte d'Azur, Valbonne, 06560, France; Faculté des Sciences, Institut de Chimie de Nice (ICN) - CNRS UMR 7272, 28, Avenue de Valrose, Nice, 06108, France
| | - Stéphane Rocchi
- Université Côte d'Azur, Valbonne, 06560, France; INSERM U1065 - Equipe 12, Centre Méditerranéen de Médecine Moléculaire (C3M), Nice, 06200, France
| | - Enzo Lalli
- Université Côte d'Azur, Valbonne, 06560, France; CNRS UMR 7275, Sophia Antipolis, Valbonne, 06560, France; NEOGENEX CNRS International Associated Laboratory, Valbonne, 06560, France; Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, 06560, France.
| |
Collapse
|
9
|
Marzag H, Zerhouni M, Tachallait H, Demange L, Robert G, Bougrin K, Auberger P, Benhida R. Modular synthesis of new C-aryl-nucleosides and their anti-CML activity. Bioorg Med Chem Lett 2018; 28:1931-1936. [PMID: 29655981 DOI: 10.1016/j.bmcl.2018.03.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 03/22/2018] [Indexed: 02/08/2023]
Abstract
The C-aryl-ribosyles are of utmost interest for the development of antiviral and anticancer agents. Even if several synthetic pathways have been disclosed for the preparation of these nucleosides, a direct, few steps and modular approaches are still lacking. In line with our previous efforts, we report herein a one step - eco-friendly β-ribosylation of aryles and heteroaryles through a direct Friedel-Craft ribosylation mediated by bismuth triflate, Bi(OTf)3. The resulting carbohydrates have been functionalized by cross-coupling reactions, leading to a series of new C-aryl-nucleosides (32 compounds). Among them, we observed that 5d exerts promising anti-proliferative effects against two human Chronic Myeloid Leukemia (CML) cell lines, both sensitive (K562-S) or resistant (K562-R) to imatinib, the "gold standard of care" used in this pathology. Moreover, we demonstrated that 5d kills CML cells by a non-conventional mechanism of cell death.
Collapse
Affiliation(s)
- Hamid Marzag
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France; Plant Chemistry, Organic and Bioorganic Synthesis Team, URAC23, Faculty of Sciences, B.P. 1014, GEOPAC Research Center, Mohammed V University, Rabat, Morocco
| | - Marwa Zerhouni
- Université Côte d'Azur, INSERM U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Bâtiment ARCHIMED, 151 Route de Saint-Antoine de Ginestière, BP 2 3194, 06204 Nice Cedex 3, France
| | - Hamza Tachallait
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France; Plant Chemistry, Organic and Bioorganic Synthesis Team, URAC23, Faculty of Sciences, B.P. 1014, GEOPAC Research Center, Mohammed V University, Rabat, Morocco
| | - Luc Demange
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France; Département de Chimie, Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Pharmaceutiques, 4 avenue de l'Observatoire & UFR Biomédicale des Saints Pères, 45 rue des Saints Pères, Paris Fr-75006, France
| | - Guillaume Robert
- Université Côte d'Azur, INSERM U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Bâtiment ARCHIMED, 151 Route de Saint-Antoine de Ginestière, BP 2 3194, 06204 Nice Cedex 3, France
| | - Khalid Bougrin
- Plant Chemistry, Organic and Bioorganic Synthesis Team, URAC23, Faculty of Sciences, B.P. 1014, GEOPAC Research Center, Mohammed V University, Rabat, Morocco
| | - Patrick Auberger
- Université Côte d'Azur, INSERM U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Bâtiment ARCHIMED, 151 Route de Saint-Antoine de Ginestière, BP 2 3194, 06204 Nice Cedex 3, France
| | - Rachid Benhida
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, 06108 Nice, France; Mohamed VI Polytechnic University, UM6P, 43150 Ben Guerir, Morocco.
| |
Collapse
|
10
|
Grytsai O, Druzhenko T, Demange L, Ronco C, Benhida R. Cyanoguanidine as a versatile, eco-friendly and inexpensive reagent for the synthesis of 2-aminobenzoxazoles and 2-guanidinobenzoxazoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|