1
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Mashhadi SM, Bhatti MH, Jabeen E, Yunus U, Ashfaq M, Akhtar M, Tahir MN, Alshehri SM, Ahmed S, Ojha SC. Synthesis and Antioxidant Studies of 2,4-Dioxothiazolidine-5-acetic Acid Based Organic Salts: SC-XRD and DFT Approach. ACS OMEGA 2023; 8:30186-30198. [PMID: 37636949 PMCID: PMC10448636 DOI: 10.1021/acsomega.3c02895] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023]
Abstract
In the current study, two organic salts (1 and 2) are synthesized, and then crystalline structures are characterized by FTIR, UV spectroscopy, and X-ray crystallographic studies. The organic salts 1 and 2 are optimized at the M06/6-311G(d,p)level of theory and further utilized for analysis of natural bond orbitals (NBOs), natural population, frontier molecular orbitals (FMOs), and global reactivity parameters, which confirmed the stability of the studied compounds and charge transfer phenomenon in the studied compounds. The studies further revealed that 1 and 2 are more stable than 3. The lowest energy merged monomer-coformer conformations were docked as flexible ligands with rigid fungal proteins and DNA receptors. The stagnant binding of the monomer through two H bonds with protein was observed for ligands 1 and 3 while different pattern was found with 2. The coformers formed a single H bond with the active site in 2 and 3 and a single pi-arene H interaction in 1. The two-point ligand-receptor interactions hooked the monomer between DNA base pairs for partial intercalation; pi stacking with additive hydrogen bonding with the base pair led to a strong benzimidazole interaction in 1 and 2, whereas ethylene diamine formed weak H bonding. Thus, the molecular docking predicted that the coformer exhibited DNA intercalation reinforced by its salt formation with benzimidazole 1 and methyl benzimidazole 2. Antioxidant studies depicted that 3 has a higher IC50 value than that of 2,4-D and also the largest value among the studied compounds, whereas 2 showed the lowest value among the studied compounds.
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Affiliation(s)
- Syed Muddassir
Ali Mashhadi
- Department
of Chemistry, University of Sialkot, Sialkot, Punjab 56400, Pakistan
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Moazzam H. Bhatti
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Erum Jabeen
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Uzma Yunus
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Muhammad Ashfaq
- Department
of Physics, University of Sargodha, Sargodha, Punjab 40100, Pakistan
| | - Mahjbeen Akhtar
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | | | - Saad M. Alshehri
- Department
of Chemistry, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Sarfraz Ahmed
- Wellman
Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Suvash Chandra Ojha
- Department
of Infectious Diseases, The Affiliated Hospital
of Southwest Medical University, Luzhou, Sichuan 646000, China
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2
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Zhang J, Wan M, Fang J, Hong Z, Liu J, Qin J, Xue J, Du Y. Vibrational spectroscopic detection and analysis of isoniazid-nicotinamide-succinic acid ternary cocrystal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 295:122623. [PMID: 36963218 DOI: 10.1016/j.saa.2023.122623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/24/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
In this paper, binary and ternary cocrystals in the ternary cocrystal system of isoniazid-nicotinamide-succinic acid were prepared by solvent evaporation and grinding methods. All of them were characterized by terahertz time-domain spectroscopy (THz-TDS), confirming that the cocrystals could be obtained by the above two methods. In addition, to investigate the formation of hydrogen bonds and their influence in cocrystal, several possible forms of hydrogen bond in cocrystal were simulated by density functional theory (DFT). The simulated result was in good agreement with the experimental result, indicating that the hydrogen bonds in cocrystal were the carboxyl groups on both side of succinic acid forming a pyridine N-carboxylic acid heterosynthon with pyridine N of isoniazid or nicotinamide respectively. Meanwhile, the vibrational modes of the cocrystal were analyzed to investigate the effect of hydrogen bond to the molecules. To further understand the formation process of ternary cocrystal in this system, Raman spectroscopy was used to analyze the cocrystal samples with different time of grinding. Process information of cocrystal formation were obtained by analyzing the changes of the characteristic peaks in the corresponding Raman spectra. These results provide a wealth of information and a unique approach to the analysis of both structures and intermolecular interactions shown within ternary cocrystal.
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Affiliation(s)
- Jiale Zhang
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Mei Wan
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Jiyuan Fang
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Zhi Hong
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Jianjun Liu
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Jianyuan Qin
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yong Du
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China.
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3
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Szewczyk A, Brzezińska-Rojek J, Ośko J, Majda D, Prokopowicz M, Grembecka M. Antioxidant-Loaded Mesoporous Silica-An Evaluation of the Physicochemical Properties. Antioxidants (Basel) 2022; 11:antiox11071417. [PMID: 35883907 PMCID: PMC9312088 DOI: 10.3390/antiox11071417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 02/05/2023] Open
Abstract
The dangerous effects of oxidative stress can be alleviated by antioxidants—substances with the ability to prevent damage caused by reactive oxygen species. The adsorption of antioxidants onto nanocarriers is a well-known method that might protect them against rough environ-mental conditions. The aim of this study was to investigate the adsorption and desorption of gallic acid (GA), protocatechuic acid (PCA), chlorogenic acid (CGA), and 4-hydroxybenzoic acid (4-HBA) using commercially available mesoporous silica materials (MSMs), both parent (i.e., SBA-15 and MCM-41) and surface functionalized (i.e., SBA-NH2 and SBA-SH). The MSMs loaded with active compounds were characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), thermoporometry (TPM), and powder X-ray diffraction (XRD). High-performance liquid chromatography (HPLC-CAD) was used to evaluate the performance of the adsorption and desorption processes. The antioxidant potential was investigated using the Folin−Ciocalteu (FC) spectrophotometric method. Among the studied MSMs, the highest adsorption of GA was observed for amine-modified SBA-15 mesoporous silica. The adsorption capacity of SBA-NH2 increased in the order of PCA, 4-HBA < GA < CGA. Different desorption effectiveness levels of the adsorbed compounds were observed with the antioxidant capacity preserved for all investigated compounds.
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Affiliation(s)
- Adrian Szewczyk
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland;
| | - Joanna Brzezińska-Rojek
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland; (J.B.-R.); (J.O.)
| | - Justyna Ośko
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland; (J.B.-R.); (J.O.)
| | - Dorota Majda
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland;
| | - Magdalena Prokopowicz
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland;
- Correspondence: (M.P.); (M.G.)
| | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, Gen. J. Hallera Avenue 107, 80-416 Gdańsk, Poland; (J.B.-R.); (J.O.)
- Correspondence: (M.P.); (M.G.)
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4
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Salem A, Khanfar E, Nagy S, Széchenyi A. Cocrystals of tuberculosis antibiotics: Challenges and missed opportunities. Int J Pharm 2022; 623:121924. [PMID: 35738333 DOI: 10.1016/j.ijpharm.2022.121924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/26/2022] [Accepted: 06/13/2022] [Indexed: 01/10/2023]
Abstract
Cocrystals have been extensively used to improve the physicochemical properties and bioavailability of active pharmaceutical ingredients. Cocrystals of anti-tuberculosis medications are among those commonly reported. This review provides a summary of the tuberculosis antibiotic cocrystals reported in the literature, providing the main results on current tuberculosis medications utilized in cocrystals. Moreover, anti-tuberculosis cocrystals limitations and advantages are described, including evidence for enhanced solubility, stability and effect. Opportunities to enhance anti-tuberculosis medications and fixed dose combinations using cocrystals are given. Several cocrystal pairs are suggested to enhance the effectiveness of anti-tuberculosis drugs.
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Affiliation(s)
- Ala' Salem
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary.
| | - Esam Khanfar
- Department of Immunology and Biotechnology, Medical School, University of Pécs, Pécs, Hungary
| | - Sándor Nagy
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Aleksandar Széchenyi
- Institute of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary; Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
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5
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Bo Y, Fang J, Zhang Z, Xue J, Liu J, Hong Z, Du Y. Terahertz and Raman Spectroscopic Investigation of Monohydrate Cocrystal of Antitubercular Isoniazid with Protocatechuic Acid. Pharmaceutics 2021; 13:pharmaceutics13081303. [PMID: 34452267 PMCID: PMC8400006 DOI: 10.3390/pharmaceutics13081303] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/15/2021] [Accepted: 08/16/2021] [Indexed: 11/16/2022] Open
Abstract
Pharmaceutical cocrystal provides an alternative modification strategy for the formulation development of drugs owning to their potential ability to improve the physicochemical properties of active pharmaceutical ingredients (APIs) efficiently by changing inter-molecular interactions between raw materials. Isoniazid (INH) is an indispensable main drug for the treatment of tuberculosis, but its tablet formulation is unstable and prone to degradation. In the present study, the monohydrate cocrystal of INH and protocatechuic acid (PA) was prepared by solvent evaporation using PA as cocrystal former to optimize the properties of INH. The parent materials and corresponding 1:1 molar ratio INH-PA monohydrate cocrystal have been characterized by the terahertz time-domain (THz-TDS) and Raman spectroscopy. The THz absorption spectra displayed that there were obvious differences between the peaks of experimental cocrystal and the parent materials, and the same situation was found in Raman vibrational spectra. In addition, density functional theory (DFT) was applied to simulating and optimizing the structure of INH-PA monohydrate cocrystal and supplied corresponding vibrational modes. Our results provided a unique method to characterize the formation of INH-PA monohydrate cocrystal at the molecular-level and a lot of information about cocrystal structure and intra-molecular and/or inter-molecular hydrogen bond interactions in the emerging pharmaceutical cocrystal fields.
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Affiliation(s)
- Yanhua Bo
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
| | - Jiyuan Fang
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
| | - Ziming Zhang
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Jianjun Liu
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
| | - Zhi Hong
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
| | - Yong Du
- Centre for THz Research, China Jiliang University, Hangzhou 310018, China; (Y.B.); (J.F.); (Z.Z.); (J.L.); (Z.H.)
- Correspondence: ; Tel.: +86-571-86875618
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6
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Structural characterization and in-situ synthesis of quaternary ionic-cocrystal of isoniazid from un-ionized coformers. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Mashhadi SMA, Batsanov AS, Sajjad SA, Nazir Y, Bhatti MH, Yunus U. Isoniazid-Gentisic acid cocrystallization: Solubility, Stability, Dissolution rate, Antioxidant and Flowability Properties Studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Mashhadi SMA, Yufit D, Liu H, Hodgkinson P, Yunus U. Synthesis and structural characterization of cocrystals of isoniazid and cinnamic acid derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Batisai E. Multicomponent crystals of anti-tuberculosis drugs: a mini-review. RSC Adv 2020; 10:37134-37141. [PMID: 35521272 PMCID: PMC9057164 DOI: 10.1039/d0ra06478e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/29/2020] [Indexed: 01/30/2023] Open
Abstract
Tuberculosis (TB) is the leading cause of death from a single infectious agent globally. Some of the early research on TB treatment indicated drug resistance as one of the key challenges in fighting this disease. The discovery that administering two or more drugs simultaneously could lead to much more effective treatment, with reduced drug resistance and shorter periods of chemotherapy, was, therefore, a very significant breakthrough in TB drug research. Pursuant to this discovery, the World Health Organisation (WHO) recommended TB treatment employing fixed-dose combinations (FDCs) containing first line anti-TB drugs; rifampicin, isoniazid, pyrazinamide, streptomycin and ethambutol. Regardless, certain challenges associated with FDCs remain and these include chemical instability and reduced bioavailability of rifampicin. Therefore, some research effort has been directed towards finding ways to deal with these challenges. One such effort involves the use of pharmaceutical co-crystals of the active pharmaceutical ingredients. Consequently, several pharmaceutical co-crystals of isoniazid and pyrazinamide have been reported. This paper aims at reviewing the multicomponent crystal structures of two first-line anti-TB drugs; isoniazid and pyrazinamide. The review will first set out a brief history of the disease, milestones in TB chemotherapy and the challenges associated with current treatment regimens. This will then be followed by a brief introduction to pharmaceutical co-crystals and how they can improve the physical and chemical properties of the active pharmaceutical ingredients. Secondly, multicomponent crystals of the two active pharmaceutical ingredients will be analysed by manual inspection for common supramolecular synthons between the drug molecules as well as between drug molecules and co-formers. Lastly; stability, solubility and dissolution experiments carried out on the pharmaceutical co-crystals of pyrazinamide and isoniazid will be analysed to gain insights into progress made with regards to improving stability and solubility of the active pharmaceutical ingredients.
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Affiliation(s)
- Eustina Batisai
- Department of Chemistry, University of Venda P. Bag X5050 Thohoyandou 0920 South Africa
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10
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Damasceno Junior E, Almeida JMFD, Silva IDN, Assis MLMD, Santos LMD, Dias EF, Silva FED, Fernandes NS, Silva DRD. Obtaining and Applying Nanohybrid Palygorskite-Rifampicin in the pH-Responsive Release of the Tuberculostatic Drug. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10251-10269. [PMID: 32808528 DOI: 10.1021/acs.langmuir.0c01834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Despite having good efficacy in the treatment and prevention of tuberculosis, the administration of rifampicin (RIF) can cause serious side effects, resulting from the prolonged use of this substance. Thus, it is necessary to seek new systems for administering tuberculostatic drugs, to avoid unwanted adverse effects, increase their bioavailability and, consequently, improve their therapeutic efficacy. The present work describes the achievement of a pH-responsive system for RIF, using palygorskite, a fibrous clay mineral, as a nanocarrier. To evaluate the influence of some operational variables on the drug adsorption process, a 24 factorial experimental design was used. The experiment using a maximum concentration (0.125 mg/mL), lower mass of PAL (300 mg), and lower pH (pH 2) was more efficient compared to other experiments, resulting in a higher dose of the incorporated drug, equivalent to 33.62 mg/g. To elucidate the mechanism of interaction between the materials, the hybrid obtained was characterized by different characterization techniques (Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetry/derived thermogravimetry, zeta potential, scanning electron microscopy, and dispersive energy spectroscopy). In addition, kinetic models and adsorption isotherms were applied to the experimental data. Through in vitro release studies, it was possible to verify the effectiveness of the pH-dependent system obtained. The adjustment of experimental release data to the theoretical model of Higuchi indicated that the release of rifampicin occurs in a prolonged way from the palygorskite.
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Affiliation(s)
- Elmar Damasceno Junior
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Janiele Mayara Ferreira de Almeida
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Isabel do Nascimento Silva
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Mikaely Lizandra Moreira de Assis
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Lamara Maciel Dos Santos
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Elizete Faustino Dias
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Francisco Emanuel da Silva
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Nedja Suely Fernandes
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
| | - Djalma Ribeiro da Silva
- Instituto de Química, Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova, 59072-970 Natal, Rio Grande do Norte, Brasil
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11
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Du Y, Xue J, Hong Z. Raman and Terahertz Spectroscopic Characterization of Solid-state Cocrystal Formation within Specific Active Pharmaceutical Ingredients. Curr Pharm Des 2020; 26:4829-4846. [PMID: 32445442 DOI: 10.2174/1381612826666200523173448] [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: 11/05/2019] [Accepted: 04/23/2020] [Indexed: 11/22/2022]
Abstract
Cocrystallization of specific active pharmaceutical ingredients (APIs) in the solid-state phase is becoming a feasible way to improve their corresponding physicochemical properties and ultimate bioavailability without making and breaking any covalent bonds within them. Many recent reports deal with the characterization and analysis topics of pharmaceutical APIs-based cocrystals. In this mini-review, we will focus on the recent steady-state and time-dependent spectroscopic investigation into the cocrystallization of specific APIs based on both Raman and emerging terahertz spectroscopy in pharmaceutical fields. Distinctive spectral, structural and also kinetic information of pharmaceutical APIs-based cocrystals are obtained and discussed, which would highlight the potential of vibrational spectroscopy as an attractive technique for various drug research and development during cocrystallization of specific APIs.
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Affiliation(s)
- Yong Du
- Centre for THz Research, China Jiliang University, Hangzhou City, Zhejiang Province, China
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou City, Zhejiang Province, China
| | - Zhi Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou City, Zhejiang Province, China
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12
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Huo J, Peng Z, Feng Q. Synthesis and properties of microencapsulated phase change material with a urea–formaldehyde resin shell and paraffin wax core. J Appl Polym Sci 2019. [DOI: 10.1002/app.48578] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jin‐Hua Huo
- College of Chemistry and Chemical EngineeringSouthwest Petroleum University Chengdu 610500 Sichuan China
| | - Zhi‐Gang Peng
- College of Chemistry and Chemical EngineeringSouthwest Petroleum University Chengdu 610500 Sichuan China
| | - Qian Feng
- College of Chemistry and Chemical EngineeringSouthwest Petroleum University Chengdu 610500 Sichuan China
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13
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M'bitsi-Ibouily GC, Marimuthu T, Kumar P, Choonara YE, du Toit LC, Pradeep P, Modi G, Pillay V. Synthesis, Characterisation and In Vitro Permeation, Dissolution and Cytotoxic Evaluation of Ruthenium(II)-Liganded Sulpiride and Amino Alcohol. Sci Rep 2019; 9:4146. [PMID: 30858469 PMCID: PMC6412051 DOI: 10.1038/s41598-019-40538-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/07/2019] [Indexed: 12/15/2022] Open
Abstract
Sulpiride (SPR) is a selective antagonist of central dopamine receptors but has limited clinical use due to its poor pharmacokinetics. The aim of this study was to investigate how metal ligation to SPR may improve its solubility, intestinal permeability and prolong its half-life. The synthesis and characterisation of ternary metal complexes [Ru(p -cymene)(L)(SPR)]PF6 (L1 = (R)-(+)-2-amino-3-phenyl-1-propanol, L2 = ethanolamine, L3 = (S)-(+)-2-amino-1-propanol, L4 = 3-amino-1-propanol, L5 = (S)-(+)-2-pyrrolidinemethanol) are described in this work. The stability constant of the [Ru(p -cymene)(SPR)] complex was determined using Job's method. The obtained value revealed higher stability of the metal complex in the physiological pH than in an acidic environment such as the stomach. The ternary metal complexes were characterised by elemental analysis, Fourier transform infrared spectroscopy (FT-IR), 1H and 13C nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), thermal analyses, Ultraviolet-Visible (UV-Vis). Solubility studies showed higher aqueous solubility for complexed SPR than the free drug. Dissolution profiles of SPR from the metal complexes exhibited slower dissolution rate of the drug. Permeation studies through the pig's intestine revealed enhanced membrane permeation of the complexed drug. In vitro methyl thiazolyl tetrazolium (MTT) assay showed no noticeable toxic effects of the ternary metal complexes on Caco-2 cell line.
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Affiliation(s)
- Gretta C M'bitsi-Ibouily
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Priyamvada Pradeep
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Girish Modi
- Department of Neurology, Division of Neurosciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa.
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14
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Modulating the water solubility and thermal stability of the anti-tuberculosis drug Isoniazid via multicomponent crystal formation. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Novel Isoniazid cocrystals with aromatic carboxylic acids: Crystal engineering, spectroscopy and thermochemical investigations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.115] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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