1
|
Arshad JZ, Tabassum S, Kiani MS, Arshad S, Hashmi MA, Majeed I, Ali H, Shah SSA. Anticancer Properties of Ru and Os Half-Sandwich Complexes of N,S Bidentate Schiff Base Ligands Derived from Phenylthiocarbamide. Chem Asian J 2023; 18:e202300804. [PMID: 37737043 DOI: 10.1002/asia.202300804] [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: 09/16/2023] [Accepted: 09/20/2023] [Indexed: 09/23/2023]
Abstract
The versatile coordinating nature of N,S bidentate ligands is of great importance in medicinal chemistry imparting stability and enhancing biological properties of the metal complexes. Phenylthiocarbamide-based N,S donor Schiff bases converted into RuII /OsII (cymene) complexes and characterized by spectroscopic techniques and elemental analysis. The hydrolytic stability of metal complexes to undergo metal-halide ligand exchange reaction was confirmed both by the DFT and NMR experimentation. The ONIOM (QM/MM) study confirmed the histone protein targeting nature of aqua/hydroxido complex 2 aH with an excellent binding energy of -103.19 kcal/mol. The antiproliferative activity against a panel of cancer cells A549, MCF-7, PC-3, and HepG2 revealed that ruthenium complexes 1 a-3 a were more cytotoxic than osmium complexes and their respective ligands 1-3 as well. Among these ruthenium cymene complex bearing sulfonamide moiety 2 a proved a strong cytotoxic agent and showed excellent correlation of cellular accumulation, lipophilicity, and drug-likeness to the anticancer activity. Moreover, the favorable physiochemical properties such as bioavailability and gastrointestinal absorption of ligand 2 also supported the development of Ru complex 2 a as an orally active anticancer metallodrug.
Collapse
Affiliation(s)
- Jahan Zaib Arshad
- Department of Chemistry, Government College, Women University Sialkot, Kutchehry Road, Sialkot, Pakistan
| | - Sana Tabassum
- Department of Chemistry, Government College, Women University Sialkot, Kutchehry Road, Sialkot, Pakistan
| | - Muhammad Shaheer Kiani
- Department of Chemistry, Division of Science & Technology, University of Education, 54770, Lahore, Pakistan
| | - Sundas Arshad
- Department of Chemistry, Government College, Women University Sialkot, Kutchehry Road, Sialkot, Pakistan
| | - Muhammad Ali Hashmi
- Department of Chemistry, Division of Science & Technology, University of Education, 54770, Lahore, Pakistan
| | - Imran Majeed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Hassan Ali
- Department of Chemistry, School of Natural Sciences, National University of Science and Technology H-12 Islamabad, Islamabad, 44000, Pakistan
| | - Syed Shoaib Ahmad Shah
- Department of Chemistry, School of Natural Sciences, National University of Science and Technology H-12 Islamabad, Islamabad, 44000, Pakistan
| |
Collapse
|
2
|
Shekar Roy H, K M N, Rajput S, Sadhukhan S, Gowri V, Hassan Dar A, Monga M, Salaria N, Guha R, Chattopadhyay N, Jayamurugan G, Ghosh D. Efficient Nitric Oxide Scavenging by Urea-Functionalized Push-Pull Chromophore Modulates NO-Mediated Diseases. Chemistry 2023; 29:e202301748. [PMID: 37431238 DOI: 10.1002/chem.202301748] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/03/2023] [Accepted: 07/10/2023] [Indexed: 07/12/2023]
Abstract
The excess nitric oxide (NO) produced in the body in response to bacterial/proinflammatory stimuli is responsible for several pathological conditions. The current approaches that target the production of excess NO, either through the inhibition of nitric oxide synthase enzyme or its downstream mediators have been clinically unsuccessful. With an aim to regulate the excess NO, urea-functionalized push-pull chromophores containing 1,1,4,4-tetracyanobuta-1,3-dienes (TCBD) or expanded TCBD (eTCBD) were developed as NO scavengers. The NMR mechanistic studies revealed that upon NO binding, these molecules are converted to uncommon stable NONOates. The unique emissive property of Urea-eTCBD enables its application in vitro, as a NO-sensor. Furthermore, the cytocompatible Urea-eTCBD, rapidly inactivated the NO released from LPS-activated cells. The therapeutic efficacy of the molecule in modulating NO-mediated pathological condition was confirmed using a carrageenan-induced inflammatory paw model and a corneal injury model. While the results confirm the advantages of scavenging the excess NO to address a multitude of NO-mediated diseases, the promising sensing and bioactivity of Urea-eTCBD can motivate further exploration of such molecules in allied areas of research.
Collapse
Affiliation(s)
- Himadri Shekar Roy
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Neethu K M
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Swati Rajput
- Division of Endocrinology and Centre for Research in ASTHI, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Sreyanko Sadhukhan
- Division of Endocrinology and Centre for Research in ASTHI, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Vijayendran Gowri
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Arif Hassan Dar
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Malika Monga
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Navita Salaria
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Rajdeep Guha
- Division of Laboratory Animal Facility, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Naibedya Chattopadhyay
- Division of Endocrinology and Centre for Research in ASTHI, CSIR-Central Drug Research Institute, Lucknow, 226031, Uttar Pradesh, India
| | - Govindasamy Jayamurugan
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| | - Deepa Ghosh
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India
| |
Collapse
|
3
|
Gavadia R, Rasgania J, Basil MV, Chauhan V, Kumar S, Jakhar K. Synthesis of Isoniazid analogs with Promising Antituberculosis Activity and Bioavailability: Biological Evaluation and Computational Studies. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
|
4
|
Arias F, Camacho ME, Carrión MD. NMR spectroscopy study of new imidamide derivatives as nitric oxide synthase inhibitors. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:915-923. [PMID: 35428991 DOI: 10.1002/mrc.5273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Affiliation(s)
- Fabio Arias
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| | - María Encarnación Camacho
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| | - María Dora Carrión
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| |
Collapse
|
5
|
Novel urea-thiourea hybrids bearing 1,4-naphthoquinone moiety: Anti-inflammatory activity on mammalian macrophages by regulating intracellular PI3K pathway, and molecular docking study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Bioactive imidamide-based compounds targeted against nitric oxide synthase. Bioorg Chem 2022; 120:105637. [DOI: 10.1016/j.bioorg.2022.105637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 12/30/2022]
|
7
|
Steel TR, Walsh F, Wieczorek-Błauż A, Hanif M, Hartinger CG. Monodentately-coordinated bioactive moieties in multimodal half-sandwich organoruthenium anticancer agents. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213890] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
8
|
Arias F, Franco-Montalban F, Romero M, Carrión MD, Camacho ME. Synthesis, bioevaluation and docking studies of new imidamide derivatives as nitric oxide synthase inhibitors. Bioorg Med Chem 2021; 44:116294. [PMID: 34218000 DOI: 10.1016/j.bmc.2021.116294] [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] [Received: 05/11/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
In search of new Nitric Oxide Synthase (NOS) inhibitor agents, two isosteric series of derivatives with an imidamide scaffold (one of them with a hydroxyl group and the other with a carbonyl one) were synthesized and evaluated on inducible (iNOS) and neuronal (nNOS) isoforms. These compounds have been designed by combining a kynurenamine framework with an amidine moiety in order to improve selectivity for the inducible isoform. In general, the in vitro inhibitory assays exhibited better inhibition values on the iNOS isoform, being the N-(3-(2-amino-5-methoxyphenyl)-3-hydroxypropyl)-4-(trifluoromethyl)benzimidamide 4i the most active inhibitor with the highest iNOS selectivity, without inhibiting eNOS. Docking studies on the two most active compounds suggest a different binding mode on both isozymes, supporting the experimentally observed selectivity towards the inducible isoform. Physicochemical in silico studies suggest that these compounds possess good drug-likeness properties.
Collapse
Affiliation(s)
- Fabio Arias
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Spain
| | | | - Miguel Romero
- Departamento de Farmacología, Facultad de Farmacia, Universidad de Granada, Spain; Instituto de Investigación Biosanitaria de Granada, ibs.GRANADA, Granada, Spain; Department of Pharmacology, School of Pharmacy and Center for Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain; Ciber de Enfermedades Cardiovasculares (CIBERCV), Spain
| | - M Dora Carrión
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Spain.
| | - M Encarnación Camacho
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, Spain.
| |
Collapse
|
9
|
Ashraf-Uz-Zaman M, Shahi S, Akwii R, Sajib MS, Farshbaf MJ, Kallem RR, Putnam W, Wang W, Zhang R, Alvina K, Trippier PC, Mikelis CM, German NA. Design, synthesis and structure-activity relationship study of novel urea compounds as FGFR1 inhibitors to treat metastatic triple-negative breast cancer. Eur J Med Chem 2021; 209:112866. [PMID: 33039722 PMCID: PMC7744370 DOI: 10.1016/j.ejmech.2020.112866] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/13/2020] [Accepted: 09/16/2020] [Indexed: 12/13/2022]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive type of cancer characterized by higher metastatic and reoccurrence rates, where approximately one-third of TNBC patients suffer from the metastasis in the brain. At the same time, TNBC shows good responses to chemotherapy, a feature that fuels the search for novel compounds with therapeutic potential in this area. Recently, we have identified novel urea-based compounds with cytotoxicity against selected cell lines and with the ability to cross the blood-brain barrier in vivo. We have synthesized and analyzed a library of more than 40 compounds to elucidate the key features responsible for the observed activity. We have also identified FGFR1 as a molecular target that is affected by the presence of these compounds, confirming our data using in silico model. Overall, we envision that these compounds can be further developed for the potential treatment of metastatic breast cancer.
Collapse
Affiliation(s)
- Md Ashraf-Uz-Zaman
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Sadisna Shahi
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Racheal Akwii
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Md Sanaullah Sajib
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | | | - Raja Reddy Kallem
- Clinical Pharmacology & Experimental Therapeutics Center, Texas Tech University Health Sciences Center, Dallas, TX, USA
| | - William Putnam
- Clinical Pharmacology & Experimental Therapeutics Center, Texas Tech University Health Sciences Center, Dallas, TX, USA
| | - Wei Wang
- College of Pharmacy, University of Houston, Houston, TX, USA
| | - Ruiwen Zhang
- College of Pharmacy, University of Houston, Houston, TX, USA
| | - Karina Alvina
- Center of Excellence for Translational Neuroscience and Therapeutics, Texas Tech University Health Sciences Center, Lubbock, TX, USA; Department of Biological Sciences, Texas Tech University, Lubbock, TX, USA; Department of Neuroscience, University of Florida, Gainesville, FL, USA
| | - Paul C Trippier
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA; UNMC Center for Drug Discovery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Constantinos M Mikelis
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Nadezhda A German
- Department of Pharmaceutical Sciences, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA; Center of Excellence for Translational Neuroscience and Therapeutics, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
| |
Collapse
|
10
|
Cinelli MA, Do HT, Miley GP, Silverman RB. Inducible nitric oxide synthase: Regulation, structure, and inhibition. Med Res Rev 2020; 40:158-189. [PMID: 31192483 PMCID: PMC6908786 DOI: 10.1002/med.21599] [Citation(s) in RCA: 382] [Impact Index Per Article: 95.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/14/2019] [Accepted: 05/13/2019] [Indexed: 12/11/2022]
Abstract
A considerable number of human diseases have an inflammatory component, and a key mediator of immune activation and inflammation is inducible nitric oxide synthase (iNOS), which produces nitric oxide (NO) from l-arginine. Overexpressed or dysregulated iNOS has been implicated in numerous pathologies including sepsis, cancer, neurodegeneration, and various types of pain. Extensive knowledge has been accumulated about the roles iNOS plays in different tissues and organs. Additionally, X-ray crystal and cryogenic electron microscopy structures have shed new insights on the structure and regulation of this enzyme. Many potent iNOS inhibitors with high selectivity over related NOS isoforms, neuronal NOS, and endothelial NOS, have been discovered, and these drugs have shown promise in animal models of endotoxemia, inflammatory and neuropathic pain, arthritis, and other disorders. A major issue in iNOS inhibitor development is that promising results in animal studies have not translated to humans; there are no iNOS inhibitors approved for human use. In addition to assay limitations, both the dual modalities of iNOS and NO in disease states (ie, protective vs harmful effects) and the different roles and localizations of NOS isoforms create challenges for therapeutic intervention. This review summarizes the structure, function, and regulation of iNOS, with focus on the development of iNOS inhibitors (historical and recent). A better understanding of iNOS' complex functions is necessary before specific drug candidates can be identified for classical indications such as sepsis, heart failure, and pain; however, newer promising indications for iNOS inhibition, such as depression, neurodegenerative disorders, and epilepsy, have been discovered.
Collapse
Affiliation(s)
- Maris A. Cinelli
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Center for Developmental Therapeutics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Current address: Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824
| | - Ha T. Do
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Center for Developmental Therapeutics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Current address: Mersana Therapeutics, Inc., Cambridge, MA 02139
| | - Galen P. Miley
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Center for Developmental Therapeutics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Richard B. Silverman
- Department of Chemistry, Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Center for Developmental Therapeutics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| |
Collapse
|
11
|
Parveen S, Tong KKH, Khawar Rauf M, Kubanik M, Shaheen MA, Söhnel T, Jamieson SMF, Hanif M, Hartinger CG. Coordination Chemistry of Organoruthenium Compounds with Benzoylthiourea Ligands and their Biological Properties. Chem Asian J 2019; 14:1262-1270. [DOI: 10.1002/asia.201801798] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/21/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Shahida Parveen
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
- Department of ChemistryUniversity of Sargodha Sargodha 40100 Pakistan
| | - Kelvin K. H. Tong
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Muhammad Khawar Rauf
- Office of Research, Innovation and CommercializationQuaid-I-Azam University Islamabad 45320 Pakistan
| | - Mario Kubanik
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | | | - Tilo Söhnel
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Stephen M. F. Jamieson
- Auckland Cancer Society Research CentreUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Muhammad Hanif
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Christian G. Hartinger
- School of Chemical SciencesUniversity of Auckland Private Bag 92019 Auckland 1142 New Zealand
| |
Collapse
|
12
|
Bao J, Kuik D, Tranmer GK. An efficient one-pot synthesis of N,N′-disubstituted phenylureas and N-aryl carbamates using hydroxylamine-O-sulfonic acid. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Kurhade S, Diekstra E, Sutanto F, Kurpiewska K, Kalinowska-Tłuścik J, Dömling A. Multicomponent Reaction Based Synthesis of 1-Tetrazolylimidazo[1,5- a]pyridines. Org Lett 2018; 20:3871-3874. [PMID: 29943994 PMCID: PMC6038091 DOI: 10.1021/acs.orglett.8b01452] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A series
of unprecedented tetrazole-linked imidazo[1,5-a]pyridines
are synthesized from simple and readily available
building blocks. The reaction sequence involves an azido-Ugi-deprotection
reaction followed by an acetic anhydride-mediated N-acylation–cyclization process to afford the target heterocycle.
Furthermore, the scope of the methodology was extended to diverse
R3-substitutions by employing commercial anhydrides, acid
chlorides, and acids as an acyl component. The scope for the postmodification
reactions are explored and the usefulness of the synthesis is exemplified
by an improved three-step synthesis of a guanylate cyclase stimulator.
Collapse
Affiliation(s)
- Santosh Kurhade
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Elmar Diekstra
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Fandi Sutanto
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| | - Katarzyna Kurpiewska
- Jagiellonian University , Faculty of Chemistry , Gronostajowa 2 , 30-387 Krakow , Poland
| | | | - Alexander Dömling
- Department of Drug Design , University of Groningen , A. Deusinglaan 1 , 9713 AV Groningen , The Netherlands
| |
Collapse
|
14
|
Thiadiazoline- and Pyrazoline-Based Carboxamides and Carbothioamides: Synthesis and Inhibition against Nitric Oxide Synthase. J CHEM-NY 2018. [DOI: 10.1155/2018/9242616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Two new families of pyrazoline and thiadiazoline heterocycles have been developed. Their inhibitory activities against two different isoforms of nitric oxide synthase (inducible and neuronal NOS) are reported. The novel derivatives were synthesized combining the arylthiadiazoline or arylpyrazoline skeleton and a carboxamide or carbothioamide moiety, used as starting material ethyl 2-nitrobenzoates or substituted nitrobenzaldehydes, respectively. The structure-activity relationships of final molecules are discussed in terms of the R1 radical effects in the aromatic ring, the Y atom in the heterocyclic system, the X heteroatom in the main chain, and the R2 substituent in the carboxamide or carbothioamide rest. In general, thiadiazolines (5a–e) inhibit preferentially the neuronal isoform; among them, 5a is the best nNOS inhibitor (74.11% at 1 mM, IC50 = 420 μM). In contrast, pyrazolines (6a–r) behave better as iNOS than nNOS inhibitors, 6m being the best molecule of this series (76.86% at 1 mM of iNOS inhibition, IC50 = 130 μM) and the most potent of all tested compounds.
Collapse
|
15
|
Bag SS, De S. Isothiocyanyl Alanine as a Synthetic Intermediate for the Synthesis of Thioureayl Alanines and Subsequent Aminotetrazolyl Alanines. J Org Chem 2017; 82:12276-12285. [PMID: 29065260 DOI: 10.1021/acs.joc.7b02103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The synthesis of unnatural amino acids with small side-chain functionalities usable for further transformations is highly demanding for the expansion of the genetic code and other possible biotechnological applications. To this end, we wanted to report the utility of an unexplored unnatural amino acid, isothiocyanyl alanine (NCSAla = Ita), for the synthesis of another class of unnatural amino acids, thioureayl alanines (TUAla = Tua). The synthesis of a third class of unnatural amino acids, amino tetrazolyl alanines (ATzAla = Ata), in a very good yield was subsequently achieved utilizing thioureayl alanines. Thus, a variety of aliphatic- and aromatic-substituted thioureayl alanines and aromatic-substituted amino tetrazolyl alanines were successfully synthesized in good to excellent yields. The photophysical properties of three of the fluorescent unnatural amino acids from two classes were also studied and presented herein.
Collapse
Affiliation(s)
- Subhendu Sekhar Bag
- Bioorganic Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati 781039, India
| | - Suranjan De
- Bioorganic Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati 781039, India
| |
Collapse
|
16
|
Chayah M, Camacho ME, Carrión MD, Gallo MA. (1) H and (13) C NMR spectral assignment of N,N'-disubstituted thiourea and urea derivatives active against nitric oxide synthase. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:793-799. [PMID: 27173052 DOI: 10.1002/mrc.4455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/20/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
The (1) H and (13) C NMR resonances of seventeen N-alkyl and aryl-N'-[3-hydroxy-3-(2-nitro-5-substitutedphenyl)propyl]-thioureas and ureas (1-17), and seventeen N-alkyl or aryl-N'-[3-(2-amino-5-substitutedphenyl)-3-hydroxypropyl]-thioureas and ureas (18-34), designed as NOS inhibitors, were assigned completely using the concerted application of one- and two-dimensional experiments (DEPT, HSQC and HMBC). NOESY studies confirm the preferred conformation of these compounds. Copyright © 2016 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Mariem Chayah
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, 18071, Granada, Spain
| | - M Encarnación Camacho
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, 18071, Granada, Spain
| | - M Dora Carrión
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, 18071, Granada, Spain
| | - Miguel A Gallo
- Departamento de Química Farmacéutica y Orgánica, Facultad de Farmacia, Universidad de Granada, 18071, Granada, Spain
| |
Collapse
|
17
|
Sutera FM, De Caro V, Giannola LI. Small endogenous molecules as moiety to improve targeting of CNS drugs. Expert Opin Drug Deliv 2016; 14:93-107. [DOI: 10.1080/17425247.2016.1208651] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Flavia Maria Sutera
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, via Archirafi 32, 90123 Palermo, Italy
| | - Viviana De Caro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, via Archirafi 32, 90123 Palermo, Italy
| | - Libero Italo Giannola
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, via Archirafi 32, 90123 Palermo, Italy
| |
Collapse
|