1
|
Khodov IA, Belov KV, Krestyaninov MA, Dyshin AA, Kiselev MG. Investigation of the Spatial Structure of Flufenamic Acid in Supercritical Carbon Dioxide Media via 2D NOESY. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16041524. [PMID: 36837153 PMCID: PMC9961892 DOI: 10.3390/ma16041524] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/17/2023] [Accepted: 02/09/2023] [Indexed: 05/13/2023]
Abstract
The search for new forms of already known drug compounds is an urgent problem of high relevance as more potent drugs with fewer side effects are needed. The trifluoromethyl group in flufenamic acid renders its chemical structure differently from other fenamates. This modification is responsible for a large number of conformational polymorphs. Therefore, flufenamic acid is a promising structural modification of well-known drug molecules. An effective approach in this field is micronization, employing "green" supercritical fluid technologies. This research raises some key questions to be answered on how to control polymorphic forms during the micronization of drug compounds. The results presented in this work demonstrate the ability of two-dimensional nuclear Overhauser effect spectroscopy to determine conformational preferences of small molecular weight drug compounds in solutions and fluids, which can be used to predict the polymorphic form during the micronization. Quantitative analysis was carried out to identify the conformational preferences of flufenamic acid molecules in dimethyl sulfoxide-d6 medium at 25 °C and 0.1 MPa, and in mixed solvent medium containing supercritical carbon dioxide at 45 °C and 9 MPa. The data presented allows predictions of the flufenamic acid conformational preferences of poorly soluble drug compounds to obtain new micronized forms.
Collapse
|
2
|
Oparin RD, Krestyaninov MA, Ivlev DV, Kiselev MG. Molecular Mechanism of Conformational Crossover of Mefenamic Acid Molecules in scCO 2. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1403. [PMID: 36837033 PMCID: PMC9963762 DOI: 10.3390/ma16041403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
In this work, we studied conformational equilibria of molecules of mefenamic acid in its diluted solution in scCO2 under isochoric heating conditions in the temperature range of 140-210 °C along the isochore corresponding to the scCO2 density of 1.1 of its critical value. This phase diagram range totally covers the region of conformational transitions of molecules of mefenamic acid in its saturated solution in scCO2. We found that in the considered phase diagram region, the equilibrium of two conformers is realized in this solution. In the temperature range of 140-180 °C, conformer I related to the first, most stable polymorph of mefenamic acid prevails. In the temperature range of 200-210 °C, conformer II, which is related to the second metastable polymorph becomes dominant. Based on the results of quantum chemical calculations and experimental IR spectroscopy data on the mefenamic acid conformer populations, we classified this temperature-induced conformational crossover as an entropy-driven phenomenon.
Collapse
|
3
|
Conformational Screening of Arbidol Solvates: Investigation via 2D NOESY. Pharmaceutics 2023; 15:pharmaceutics15010226. [PMID: 36678855 PMCID: PMC9865235 DOI: 10.3390/pharmaceutics15010226] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/31/2022] [Accepted: 01/07/2023] [Indexed: 01/12/2023] Open
Abstract
Understanding of the nucleation process's fundamental principles in saturated solutions is an urgent task. To do this task, it is necessary to control the formation of polymorphic forms of biologically active compounds. In certain cases, a compound can exist in a single polymorphic form, but have several solvates which can appear in different crystal forms, depending on the medium and conditions of formation, and show different pharmaceutical activity. In the present paper, we report on the analysis of Arbidol conformational preferences in two solvents of different polarities-deuterated chloroform and dimethyl sulfoxide-at 25 °C, using the 2D NOESY method. The Arbidol molecule has various solvate forms depending on the molecular conformation. The method based on the nuclear Overhauser effect spectroscopy was shown to be efficient in the analysis of complex heterocyclic compounds possessing conformation-dependent pseudo-polymorphism. It is one of the types of polymorphism observed in compounds forming crystal solvates. Combined use of NMR methods and X-ray data allowed determining of conformer populations of Arbidol in CDCl3 and DMSO-d6 which were found to be 8/92% and 37/63%, respectively. The preferred conformation in solution is the same that appears in stable crystal solvates of Arbidol.
Collapse
|
4
|
Belov KV, Batista de Carvalho LAE, Dyshin AA, Kiselev MG, Sobornova VV, Khodov IA. Conformational Analysis of Mefenamic Acid in scCO2-DMSO by the 2D NOESY Method. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122070028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
5
|
Khodov I, Belov K, Dyshin A, Krestyaninov M, Kiselev M. Pressure effect on lidocaine conformational equilibria in scCO2: A study by 2D NOESY. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120525] [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]
|
6
|
Zuev YI, Vorobei AM, Gavrikov AV, Parenago OO. Micronization of Adipic Acid via Supercritical Antisolvent Precipitation. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s1990793122070181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
7
|
Belov KV, Batista de Carvalho LAE, Dyshin AA, Efimov SV, Khodov IA. The Role of Hidden Conformers in Determination of Conformational Preferences of Mefenamic Acid by NOESY Spectroscopy. Pharmaceutics 2022; 14:2276. [PMID: 36365095 PMCID: PMC9696638 DOI: 10.3390/pharmaceutics14112276] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 12/25/2023] Open
Abstract
Mefenamic acid has been used as a non-steroidal anti-inflammatory drug for a long time. However, its practical use is quite limited due to a number of side effects on the intestinal organs. Conformational polymorphism provides mefenamic acid with unique properties regarding possible modifications obtained during the micronization process, which can improve pharmacokinetics and minimize side effects. Micronization can be performed by decompression of supercritical fluids; methods such as rapid expansion of the supercritical solution have proven their efficiency. However, this group of methods is poorly applicable for compounds with low solubility, and the modification of the method using a pharmaceutically suitable co-solvent may be useful. In our case, addition of only 2 mol% dimethyl sulfoxide increased the solubility remarkably. Information on the conformational state may be critically important for carrying out micronization. In this work, structural analysis and estimate of conformational preferences of mefenamic acid in dimethyl sulfoxide-d6 (at 25 °C and 0.1 MPa) and in a mixed solvent supercritical carbon dioxide + dimethyl sulfoxide-d6 (45 °C, 9 MPa) were performed based on nuclear Overhauser effect spectroscopy. Results show changes in the conformation fractions depending on the medium used. The importance of allowing for hidden conformers in estimating the conformational state was demonstrated in the analysis. Obtained results may be useful for improving micronization parameters.
Collapse
Affiliation(s)
- Konstantin V. Belov
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| | | | - Alexey A. Dyshin
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Sergey V. Efimov
- Institute of Physics, Kazan Federal University, 420008 Kazan, Russia
| | - Ilya A. Khodov
- Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| |
Collapse
|
8
|
|
9
|
Oparin RD, Krestyaninov MA, Kiselev MG. Role of an intramolecular H-bond in lidocaine conformer distribution and polymorph stability. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
10
|
Oparin RD, Kiselev MG. Near Infrared Spectroscopy As an Effective Way of Studying Hydrogen Bonding in a LiCl–H2O–CO2 Ternary Mixture. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422040239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
The possibility of using near IR spectroscopy to analyze the effect isobaric heating has on hydrogen bonding in an aqueous solution of LiCl in equilibrium with supercritical carbon dioxide (a LiCl–H2O–scCO2 ternary mixture) is demonstrated in a wide range of electrolyte concentrations. It is shown that this approach is highly efficient when studying ion and molecular systems with different types of interparticle interactions. The use of near IR spectroscopy allows distinguishing spectral contributions from hydrogen bonded n-mers of bulk water and water molecules in the solvation shells of ions or in ion–water chains like those formed in solutions with extremely high electrolyte concentrations that do not contain bulk water. It is shown for the studied ternary mixture that raising the concentration of electrolyte completely neutralizes the destructive effect of carbon dioxide on the formation of a hydrogen bonded structure of water. The latter is stabilized under the influence of an ion field, which also substantially weakens the temperature effect.
Collapse
|
11
|
Amooshahi P, Khazalpour S, Amani A, Masoumi H. Green electrochemical method for the synthesis of nitro and azo derivatives based on mefenamic acid. Sci Rep 2022; 12:1106. [PMID: 35058526 PMCID: PMC8776785 DOI: 10.1038/s41598-022-05009-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/29/2021] [Indexed: 11/09/2022] Open
Abstract
Electrochemical study of mefenamic acid (MFA) was carried out with details in water/ethanol mixture by the various voltammetric techniques. The results showed that the oxidation of MFA is highly dependent on pH and follows the Eir mechanism. The EpA1-pH diagram plotted based on the differential pulse voltammograms shows two linear segments, 66 and 26 mV/pH slope. Also, the diffusion coefficient and the surface excess, Ӷ* of MFA in aqueous buffered solution, determined by using the single potential-step chronoamperometry and chronocoulometry methods. Electrochemical nitration of MFA in an aqueous solution and the presence of nitrite ion (1) were both investigated by the cyclic voltammetry and controlled-potential coulometry techniques. Our results indicate that the oxidized form of MFA participates in a Michael-type addition reaction with nitrite ion (1) to form the corresponding Nitromefenamic acids (MFA-4-NO2 and MFA-5-NO2). Also, in another part, a computational study based on the density functional theory (DFT/B3LYP) was performed for the prediction of the best possible pathway in the nucleophilic addition of nitrite ion (1). The electrochemical reduction of produced nitromefenamic acids was investigated using cyclic voltammetry and controlled-potential coulometry techniques. Eventually, two new azo derivatives have been generated via electroreduction of produced nitromefenamic acids and conduction of diazotization reaction, respectively. Both nitro and azo products are approved as paints.
Collapse
Affiliation(s)
- Parvaneh Amooshahi
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65178-38683, Iran
| | - Sadegh Khazalpour
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65178-38683, Iran.
| | - Ameneh Amani
- Nahavand Higher Education Complex, Bu-Ali Sina University, Hamedan, 65178-38683, Iran
| | - Hossein Masoumi
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65178-38683, Iran
| |
Collapse
|
12
|
Vaksler Y, Benedis D, Dyshin A, Oparin R, Correia N, Capet F, Shishkina S, Kiselev M, Idrissi A. Spectroscopic characterization of single co-crystal of mefenamic acid and nicotinamide using supercritical CO2. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
13
|
Possibility of dopant morphology control in the process of polymer impregnation with pharmaceuticals in a supercritical CO2 medium. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115657] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
14
|
Tang J, Han Y, Ali I, Luo H, Nowak A, Li J. Stability and phase transition investigation of olanzapine polymorphs. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
High temperature polymorphic conversion of carbamazepine in supercritical CO2: A way to obtain pure polymorph I. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
16
|
Exposing Hidden Conformations of Carbamazepine Appearing Due to Interaction With the Solid Phase by 2D 1H- 15N HMBC NMR Spectroscopy. J Pharm Sci 2021; 110:1533-1539. [PMID: 33421434 DOI: 10.1016/j.xphs.2021.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/22/2020] [Accepted: 01/03/2021] [Indexed: 11/20/2022]
Abstract
Two-dimensional 1H-15N HMBC NMR spectra of the well-known anticonvulsant carbamazepine dissolved in different organic solvents, recorded on an NMR spectrometer prove the existence of hidden conformers in saturated solutions. Obtained conformer distribution arises due to the presence of the solid phase in saturated solution. A weak influence of ring currents was revealed for different molecular conformations of carbamazepine dissolved in a saturated solution, which provides a simple approach to discovering hidden conformations. Hidden conformers were found in three different solvents: dimethyl sulfoxide, chloroform, and dichloromethane.
Collapse
|
17
|
Alekseev ES, Alentiev AY, Belova AS, Bogdan VI, Bogdan TV, Bystrova AV, Gafarova ER, Golubeva EN, Grebenik EA, Gromov OI, Davankov VA, Zlotin SG, Kiselev MG, Koklin AE, Kononevich YN, Lazhko AE, Lunin VV, Lyubimov SE, Martyanov ON, Mishanin II, Muzafarov AM, Nesterov NS, Nikolaev AY, Oparin RD, Parenago OO, Parenago OP, Pokusaeva YA, Ronova IA, Solovieva AB, Temnikov MN, Timashev PS, Turova OV, Filatova EV, Philippov AA, Chibiryaev AM, Shalygin AS. Supercritical fluids in chemistry. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4932] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
18
|
Pishnamazi M, Zabihi S, Jamshidian S, Hezaveh HZ, Hezave AZ, Shirazian S. Measuring solubility of a chemotherapy-anti cancer drug (busulfan) in supercritical carbon dioxide. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113954] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
19
|
|
20
|
Hao C, Chen Y, Xiong J, Yang Z, Gao L, Liu BF, Liu X, Jin J, Zhang G. Polymorphs and pharmacokinetics of an antipsychotic drug candidate. Int J Pharm 2020; 586:119600. [PMID: 32629070 DOI: 10.1016/j.ijpharm.2020.119600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/10/2020] [Accepted: 06/27/2020] [Indexed: 12/30/2022]
Abstract
A potent antipsychotic drug candidate, 7-(4-(4-(6-fluorobenzo[d]-isoxazol-3-yl)-piperidin-1-yl)butoxy)-4-methyl-8-chloro -2H-chromen-2-one mesylate(CY611), with good in vitro and in vivo antipsychotic effects was investigated for preformulation evaluation by crystallography methods. Three anhydrous polymorphs(Form I-III), a monohydrate(Form IV), and a NMP solvate(Form V) were discovered and characterized by powder X-ray diffraction, thermal analysis, attenuated total reflection-fourier transform infrared spectroscopy and scanning electron microscopy. Form I, monohydrate Form IV, and a NMP solvate Form V of the drug candidate were isolated, and their structures were determined by single crystal X-ray diffraction. IDR and relative stability experiment were performed. Although Form II has the fastest release rate in water, it easy transformed to monohydrate which has the lowest release rate. In vivo pharmacokinetic study showed that the Form III has the highest bioavailability at 35.4%. Considering the balance between the physicochemical properties, bioavailability and manufacturability of the available polymorphs, Form III may be the optimal form candidate for the eventual formulation.
Collapse
Affiliation(s)
- Chao Hao
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yin Chen
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China
| | - Jiaying Xiong
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhengge Yang
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lanchang Gao
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Bi-Feng Liu
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xin Liu
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jian Jin
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Guisen Zhang
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China.
| |
Collapse
|
21
|
Oparin RD, Ivlev DV, Kiselev MG. Conformational equilibria of pharmaceuticals in supercritical CO 2, IR spectroscopy and quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 230:118072. [PMID: 31978693 DOI: 10.1016/j.saa.2020.118072] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/18/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
In this work we demonstrate a self-consistent effective technique of analyzing the conformational equilibria of active pharmaceutical ingredient (API) molecules dissolved in supercritical carbon dioxide in a wide range of thermodynamic parameters of state. This approach can be useful for pharmaceutics when the crystalline forms of pharmaceuticals with a high purity degree and desirable polymorphism are produced using CO2-based supercritical fluids technologies. Within this approach we use a combination of quantum chemical calculations and in situ IR spectroscopy. Quantum chemical calculations allow us to perform the initial conformational search and to determine the energy characteristics of the most stable conformers of API and the energy barriers of transitions between them. IR spectroscopy gives the information on the equilibrium of the most stable conformers of pharmaceuticals dissolved in scCO2 in the thermodynamic parameter range of interest. Finally we validate our approach by applying it to the study of carbamazepine dissolved in scCO2 being in permanent contact with an excess of crystalline carbamazepine as an example. The conformational search for carbamazepine molecules in scCO2 was also performed using molecular dynamics simulation for comparison with the results obtained by the technique presented in this paper.
Collapse
Affiliation(s)
- R D Oparin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia.
| | - D V Ivlev
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia
| | - M G Kiselev
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Ivanovo, Russia
| |
Collapse
|
22
|
Oparin RD, Kurskaya MV, Krestyaninov MA, Idrissi A, Kiselev MG. Correlation between the conformational crossover of carbamazepine and its polymorphic transition in supercritical CO2: On the way to polymorph control. Eur J Pharm Sci 2020; 146:105273. [DOI: 10.1016/j.ejps.2020.105273] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 02/03/2023]
|