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Chiral Recognition R- and RS- of New Antifungal: Complexation/Solubilization/Dissolution Thermodynamics and Permeability Assay. Pharmaceutics 2022; 14:pharmaceutics14040864. [PMID: 35456700 PMCID: PMC9025555 DOI: 10.3390/pharmaceutics14040864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 02/01/2023] Open
Abstract
Novel potential antifungal of 1,2,4-triazole class have been synthesized as pure enantiomer (R-98) and racemic (RS-186). The effect of 2-hydroxypropyl-β-cyclodextrin (CD) on the solubility and permeability of RS-186 and R-98 in terms of chiral recognition was investigated. Phase solubility studies were carried out at 4 temperatures in 0-0.05 M CD concentration range for pH 2.0 and pH 7.4. AL- and AL--type phase-solubility profiles were obtained for both compounds in pH 2.0 and pH 7.4. The racemic formed more stable complexes with CD as compared to R-isomer. Disclosing of chiral discrimination was facilitated using the approach based on the complex consideration of the derived complexation/solubilization/inherent dissolution thermodynamic functions, including the differential parameters between the racemic compound and R-enantiomer. The differences in the thermodynamic parameters determined by the chirality were discussed in terms of the driving forces of the processes and the main interactions of the compounds with CD in solution. The membrane permeability of both samples in the presence of CD was accessed in order to evaluate the specificity of enantioselective transport through the lipophilic membrane. The solubility/permeability interrelation was disclosed. The investigated compounds were classified as medium permeable in pure buffers and low permeable in the presence of 0.01 M CD. The obtained results can be useful for the design of pharmaceutical products in the form of liquid formulations based on the investigated substances.
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New Antifungal Compound: Impact of Cosolvency, Micellization and Complexation on Solubility and Permeability Processes. Pharmaceutics 2021; 13:pharmaceutics13111865. [PMID: 34834280 PMCID: PMC8621413 DOI: 10.3390/pharmaceutics13111865] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
Poor solubility of new antifungal of 1,2,4-triazole class (S-119)—a structural analogue of fluconazole in aqueous media was estimated. The solubility improvement using different excipients: biopolymers (PEGs, PVP), surfactants (Brij S20, pluronic F-127) and cyclodextrins (α-CD, β-CD, 2-HP-β-CD, 6-O-Maltosyl-β-CD) was assessed in buffer solutions pH 2.0 and pH 7.4. Additionally, 2-HP-β-CD and 6-O-Maltosyl-β-CD were proposed as promising solubilizers for S-119. According to the solubilization capacity and micelle/water partition coefficients in buffer pH 7.4 pluronic F-127 was shown to improve S-119 solubility better than Brij S20. Among biopolymers, the greatest increase in solubility was shown in PVP solutions (pH 7.4) at concentrations above 4 w/v%. Complex analysis of the driving forces of solubilization, micellization and complexation processes matched the solubility results and suggested pluronic F-127 and 6-O-Maltosyl-β-CD as the most effective solubilizing agents for S-119. The comparison of S-119 diffusion through the cellulose membrane and lipophilic PermeaPad barrier revealed a considerable effect of the lipid layer on the decrease in the permeability coefficient. According to the PermeaPad, S-119 was classified as a highly permeated substance. The addition of 1.5 w/v% CDs in donor solution moves it to low-medium permeability class.
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Acipreste Hudson E, Campos de Paula HM, Coelho YL, Glanzmann N, da Silva AD, Mendes da Silva LH, Dos Santos Pires AC. The kinetics of formation of resveratrol-β-cyclodextrin-NH 2 and resveratrol analog-β-cyclodextrin-NH 2 supramolecular complexes. Food Chem 2021; 366:130612. [PMID: 34311236 DOI: 10.1016/j.foodchem.2021.130612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/23/2021] [Accepted: 07/13/2021] [Indexed: 11/16/2022]
Abstract
The determination of the kinetics of inclusion processes is significant for the application of inclusion complexes as carriers for bioactive molecules. We determined the kinetic parameters of inclusion between modified β-cyclodextrin (β-CD-NH2) and the polyphenols resveratrol (RES) and its structural analog (RESAn1), using the real-time analysis of surface plasmon resonance. The association and dissociation rate constants (ka and kd) showed that RESAn1 inclusion and its dissociation from β-CD-NH2 were faster than a similar process for RES ( [Formula: see text] = 3.10∙104 ± 0.14 M-1s-1, [Formula: see text] =1.87∙103 ± 0.11 M-1s-1; [Formula: see text] =0.39 ± 0.02 s-1, [Formula: see text] =0.30 ± 0.02 s-1, at 25 °C). The activated complex formation was also affected by the structural differences between the polyphenols, as showed by the activation energies of the association step ( [Formula: see text] 14.81 ± 0.64 kJ∙mol-1, [Formula: see text] -15.01 ± 0.75 to 82.35 ± 4.47 kJ∙mol-1). These effects of polyphenol structural differences are due to the desolvation process of interacting molecules. These results elucidate the role of small group to the dynamics of the molecular inclusion of β-CD.
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Affiliation(s)
- Eliara Acipreste Hudson
- Applied Molecular Thermodynamic Group (THERMA), Food Technology Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Hauster Maximiler Campos de Paula
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Yara Luiza Coelho
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil
| | - Nícolas Glanzmann
- Department of Chemistry, Institute of Exact Sciences (I. C. E.), Federal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Adilson David da Silva
- Department of Chemistry, Institute of Exact Sciences (I. C. E.), Federal University of Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Luis Henrique Mendes da Silva
- Colloidal and Macromolecular Green Chemistry Group (QUIVECOM), Chemistry Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil.
| | - Ana Clarissa Dos Santos Pires
- Applied Molecular Thermodynamic Group (THERMA), Food Technology Department, Federal University of Vicosa, Av. PH Rolfs, s/n, Vicosa, MG 36570-900, Brazil.
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Volkova TV, Perlovich GL. Comparative analysis of solubilization and complexation characteristics for new antifungal compound with cyclodextrins. Impact of cyclodextrins on distribution process. Eur J Pharm Sci 2020; 154:105531. [PMID: 32871213 DOI: 10.1016/j.ejps.2020.105531] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 11/24/2022]
Abstract
From a pharmaceutical standpoint, cyclodextrin-based products have deservedly gained substantial market share due to their ability to improve undesirable physicochemical properties of drugs. In this study the solubility of a potenial antifungal compound (L-173) has been improved essentially by addition of β-cyclodextrin (β-CD), 2-hydroxypropyl-β-cyclodextrin (HP-β-CD), and heptakis(2,6-di-O-methyl)-β-cyclodextrin (DM-β-CD) in aqueous solutions (pH 2.0 and pH 7.4) at 298.15-313.15 K. The phase solubility diagrams were constructed. The stoichiometric ratio of the complexes was determined as 1:1. The stability constants of L-173 with all three CDs in acidic medium belong to the range optimal for the improvement of the bioavailability of hydrophobic drugs. DM-β-CD was assigned as the best solubilizer for L-173. The driving forces of the solubilization and complexation process were revealed by evaluating the thermodynamic parameters. The distribution behavior of L-173 in the 1-octanol/buffer and 1-hexane buffer systems at pH 2.0 and pH 7.4 in the presence of different CDs concentrations was studied. The reduction of the distribution coefficients with the increasing of CD concentration was detected due to complex formation. Based on the analysis of the solubility-distribution relationship, the L-173 partitioning between the biological tissues and penetration through the biological membranes in case when cyclodextrins are used as solubilizers was evaluated, and the optimal CD concentrations were proposed.
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Affiliation(s)
- Tatyana V Volkova
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | - German L Perlovich
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia..
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Lomesh SK, Bala M, Nathan V. Physicochemical approach to study the solute-solute and solute-solvent interactions of drug Levofloxacin hemihydrate in aqueous sorbitol solutions at different temperatures: Volumetric, acoustic and conductance studies. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Physicochemical studies on molecular interactions between small biomolecules and drug benzalkonium chloride at different temperatures T = (293.15–313.15) K. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Stepniak A, Belica-Pacha S, Rozalska S, Dlugonski J, Urbaniak P, Palecz B. Study on a host–guest interaction of β-cyclodextrin with tebuconazole in water. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kumar H, Singla M, Jindal R. Viscometric measurements of dipeptides of alanine in aqueous solutions of antibacterial drug ampicillin at different temperatures. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.12.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Host–guest interactions between benznidazole and beta-cyclodextrin in multicomponent complex systems involving hydrophilic polymers and triethanolamine in aqueous solution. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2013.07.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Viscometric measurements of l-serine with antibacterial drugs ampicillin and amoxicillin at different temperatures: (305.15 to 315.15) K. J Mol Liq 2013. [DOI: 10.1016/j.molliq.2012.09.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wu M, Chen D, Song Z. Study on the luminescence behavior of sulfobutylether-β-cyclodextrin with risperidone and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:1-9. [PMID: 22647436 DOI: 10.1016/j.saa.2012.04.097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 04/23/2012] [Accepted: 04/28/2012] [Indexed: 06/01/2023]
Abstract
The interaction of sulfobutylether-β-cyclodextrin (SBE-β-CD) with risperidone (RISP) was first described with luminol-SBE-β-CD chemiluminescence (CL) system by flow injection analysis (FIA). In luminol-SBE-β-CD CL system, the 1:1 SBE-β-CD···luminol(*) complexation could enhance CL intensity of luminol and produce the effect of complexation enhancement of CL (CEC). It was found that RISP could quench the CL intensity of SBE-β-CD···luminol(*) and caused the effect of complexation enhancement of quenching (CEQ), the formation constant K(R-CD) 3.4×10(4) L mol(-1) and the stoichiometric ratio 1:1 of RISP···SBE-β-CD complex were obtained by the proposed CL model. Association degree α 0.036 of RISP···SBE-β-CD complex was also given by CL method. Based on the linear relationship to the decrement of luminol-SBE-β-CD-RISP CL intensity and the logarithm of RISP concentration, RISP also can be quantified in the linear range of 3.0-500.0 nmol L(-1) with a detection limit of 1.0 nmol L(-1) (3σ). The proposed method was successfully applied to monitoring excreted RISP in human urine. It was found that RISP reached its maximum after oral administration for 1.5 h with the total excretion of 14.26% within 8.5 h; the elimination rate constant k and half-life time t(1/2) were 0.474 and 1.5 h, respectively.
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Affiliation(s)
- Min Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, 229 North Taibai Road, Xi'an, 710069 Shaanxi Province, China
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Investigation on molecular interaction of amino acids in antibacterial drug ampicillin solutions with reference to volumetric and compressibility measurements. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.07.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Potential of ordered mesoporous silica for oral delivery of poorly soluble drugs. Ther Deliv 2012; 2:1079-91. [PMID: 22833866 DOI: 10.4155/tde.11.66] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of ordered mesoporous silica is one of the more recent and rapidly developing formulation techniques for enhancing the solubility of poorly water-soluble drugs. Their large surface area and pore volume make ordered mesoporous silica materials excellent candidates for efficient drug loading and rapid release. While this new approach offers many promising advantages, further research is still necessary to elucidate the molecular mechanisms and to improve our scientific insight into the behavior of this system. In this review, the significant developments to date are presented and research challenges highlighted. Aspects of downstream processability are discussed in view of their special bulk powder properties and unique pore architecture. Lastly, perspectives for successful oral dosage form development are presented.
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Acuña-Rougier C, Olea-Azar C. Thermodynamic and geometric study of diasteroisomeric complexes formed by racemic flavanones and three cyclodextrins through NMR. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0153-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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