1
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A P V, O R S, T V V, G L P. Sublimation of pyridine derivatives: fundamental aspects and application for two-component crystal screening. Phys Chem Chem Phys 2024. [PMID: 39150718 DOI: 10.1039/d4cp01442a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
The saturated vapour pressures of five heterocyclic compounds containing the pyridine fragment, namely, three isomers of aminopyridine (2-aminopyridine (2AmPy), 3-aminopyridine (3AmPy), and 4-aminopyridine (4AmPy)); 3-hydroxypyridine (3OHPy) and 2-(1H-imidazol-2-yl)pyridine (ImPy), were measured at appropriate temperature intervals using a transpiration (inert gas flow) method. The standard molar enthalpies, entropies, and Gibbs energies of sublimation for all the studied substances were determined. Among the compounds studied, the largest value of ΔH298sub was observed for ImPy. The influence of substitution and the effects of hydrogen bonds in the crystal lattices on sublimation parameters are discussed herein. The reliable dependences relating ΔG298sub to Tfus and ΔH298sub to ΔG298sub were plotted. A comparative analysis of several calculation schemes for the estimation of sublimation enthalpy and Gibbs free energy was carried out. Thermodynamic parameters obtained in this study were applied for the evaluation of cocrystallisation thermodynamic functions for two-component crystals (virtual screening) on the basis of the studied substituted pyridines.
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Affiliation(s)
- Voronin A P
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - Simonova O R
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - Volkova T V
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - Perlovich G L
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
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2
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Mureşan-Pop M, Simon S, Bodoki E, Simon V, Turza A, Todea M, Vulpoi A, Magyari K, Iacob BC, Bărăian AI, Gołdyn M, Gomes CSB, Susana M, Duarte MT, André V. Mechanochemical Synthesis of New Praziquantel Cocrystals: Solid-State Characterization and Solubility. CRYSTAL GROWTH & DESIGN 2024; 24:4668-4681. [PMID: 38855579 PMCID: PMC11157481 DOI: 10.1021/acs.cgd.4c00296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 06/11/2024]
Abstract
New cocrystals of praziquantel with suberic, 3-hydroxybenzoic, benzene-1,2,4,5-tetracarboxylic, trimesic, and 5-hydroxyisophthalic acids were obtained through ball milling experiments. The optimal conditions for the milling process were chosen by changing the solvent volume and the mechanical action time. Supramolecular interactions in the new cocrystals are detailed based on single-crystal X-ray diffraction analysis, confirming the expected formation of hydrogen bonds between the praziquantel carbonyl group and the carboxyl (or hydroxyl) moieties of the coformers. Different structural characterization techniques were performed for all samples, but the praziquantel:suberic acid cocrystal includes a wider range of investigations such as thermal analysis, infrared and X-ray photoelectron spectroscopies, and SEM microscopy. The stability for up to five months was established by keeping it under extreme conditions of temperature and humidity. Solubility studies were carried out for all the new forms disclosed herein and compared with the promising cocrystals previously reported with salicylic, 4-aminosalicylic, vanillic, and oxalic acids. HPLC analyses revealed a higher solubility for most of the new cocrystal forms, as compared to pure praziquantel.
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Affiliation(s)
- Marieta Mureşan-Pop
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
- INSPIRE
Research Platform, Babes-Bolyai University, 11, Arany Janos, Cluj-Napoca 400028, Romania
| | - Simion Simon
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
- INSPIRE
Research Platform, Babes-Bolyai University, 11, Arany Janos, Cluj-Napoca 400028, Romania
| | - Ede Bodoki
- Analytical
Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4, Louis Pasteur, Cluj-Napoca 400349, Romania
| | - Viorica Simon
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
| | - Alexandru Turza
- Mass
Spectrometry, Chromatography and Applied Physics Department, National Institute for Research and Development of
Isotopic and Molecular Technologies, Cluj-Napoca 400293, Romania
| | - Milica Todea
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
- INSPIRE
Research Platform, Babes-Bolyai University, 11, Arany Janos, Cluj-Napoca 400028, Romania
- Molecular
Sciences Department, Faculty of Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, 4, Louis Pasteur, Cluj-Napoca 400349, Romania
| | - Adriana Vulpoi
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
- INSPIRE
Research Platform, Babes-Bolyai University, 11, Arany Janos, Cluj-Napoca 400028, Romania
| | - Klara Magyari
- Nanostructured
Materials and Bio-Nano Interfaces Department, Interdisciplinary Research
Institute on Bio-Nano-Sciences, Babes-Bolyai
University, 42, Treboniu
Laurian, Cluj-Napoca 400271, Romania
| | - Bogdan C. Iacob
- Analytical
Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4, Louis Pasteur, Cluj-Napoca 400349, Romania
| | - Alexandra Iulia Bărăian
- Analytical
Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4, Louis Pasteur, Cluj-Napoca 400349, Romania
| | - Mateusz Gołdyn
- Faculty of
Chemistry, Adam Mickiewicz University in
Poznań, Uniwersytetu
Poznańskiego 8, Poznań 61-614, Poland
- Center
for Advanced Technology, Adam Mickiewicz
University in Poznań, Uniwersytetu Poznańskiego 10, Poznań 61-614, Poland
| | - Clara S. B. Gomes
- LAQV-REQUIMTE,
Department of Chemistry, NOVA School of Science and Technology (NOVA
FCT), NOVA University of Lisbon, Caparica 2829-516, Portugal
| | - Margarida Susana
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de
Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - M. Teresa Duarte
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de
Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Vânia André
- Centro
de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de
Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
- Associação
do Instituto Superior Técnico para a Investigação
e Desenvolvimento (IST-ID), Avenida António José de Almeida, 12, Lisboa 1000-043, Portugal
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3
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Angevine D, Camacho KJ, Zhang X, Rzayev J, Benedict JB. Enhancing the Stability of Nicotine via Crystallization Using Enantiopure Tartaric Acid Salt Formers. ACS OMEGA 2023; 8:15535-15542. [PMID: 37151519 PMCID: PMC10157684 DOI: 10.1021/acsomega.3c00849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/05/2023] [Indexed: 05/09/2023]
Abstract
Crystallization of nicotine, an oil prone to degradation at room temperature, has been demonstrated to be an effective means of creating nicotine-based materials with tunable thermal properties and improved resistance to photo-induced degradation. Herein, we show that both isomers of enantiomerically pure tartaric acid are highly effective salt formers when combined with nicotine. Both salts exhibit enhanced photostability, and with a melting point of 143.1 °C, the salt prepared using d-(-)-tartaric acid possesses one of the highest melting points for a crystalline nicotine solid reported to date.
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4
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Surov AO, Ramazanova AG, Voronin AP, Drozd KV, Churakov AV, Perlovich GL. Virtual Screening, Structural Analysis, and Formation Thermodynamics of Carbamazepine Cocrystals. Pharmaceutics 2023; 15:pharmaceutics15030836. [PMID: 36986697 PMCID: PMC10052035 DOI: 10.3390/pharmaceutics15030836] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
In this study, the existing set of carbamazepine (CBZ) cocrystals was extended through the successful combination of the drug with the positional isomers of acetamidobenzoic acid. The structural and energetic features of the CBZ cocrystals with 3- and 4-acetamidobenzoic acids were elucidated via single-crystal X-ray diffraction followed by QTAIMC analysis. The ability of three fundamentally different virtual screening methods to predict the correct cocrystallization outcome for CBZ was assessed based on the new experimental results obtained in this study and data available in the literature. It was found that the hydrogen bond propensity model performed the worst in distinguishing positive and negative results of CBZ cocrystallization experiments with 87 coformers, attaining an accuracy value lower than random guessing. The method that utilizes molecular electrostatic potential maps and the machine learning approach named CCGNet exhibited comparable results in terms of prediction metrics, albeit the latter resulted in superior specificity and overall accuracy while requiring no time-consuming DFT computations. In addition, formation thermodynamic parameters for the newly obtained CBZ cocrystals with 3- and 4-acetamidobenzoic acids were evaluated using temperature dependences of the cocrystallization Gibbs energy. The cocrystallization reactions between CBZ and the selected coformers were found to be enthalpy-driven, with entropy terms being statistically different from zero. The observed difference in dissolution behavior of the cocrystals in aqueous media was thought to be caused by variations in their thermodynamic stability.
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Affiliation(s)
- Artem O Surov
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | - Anna G Ramazanova
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | | | - Ksenia V Drozd
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | - Andrei V Churakov
- Institute of General and Inorganic Chemistry RAS, Leninsky Prosp. 31, 119991 Moscow, Russia
| | - German L Perlovich
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
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5
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Hofmann DWM, Kuleshova LN. A general force field by machine learning on experimental crystal structures. Calculations of intermolecular Gibbs energy with FlexCryst. Acta Crystallogr A Found Adv 2023; 79:132-144. [PMID: 36862039 DOI: 10.1107/s2053273323000268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 01/10/2023] [Indexed: 02/11/2023] Open
Abstract
Machine learning was employed on the experimental crystal structures of the Cambridge Structural Database (CSD) to derive an intermolecular force field for all available types of atoms (general force field). The obtained pairwise interatomic potentials of the general force field allow for the fast and accurate calculation of intermolecular Gibbs energy. The approach is based on three postulates regarding Gibbs energy: the lattice energy must be below zero, the crystal structure must be a local minimum, and, if available, the experimental and the calculated lattice energy must coincide. The parametrized general force field was then validated regarding these three conditions. First, the experimental lattice energy was compared with the calculated energies. The observed errors were found to be in the order of experimental errors. Second, Gibbs lattice energy was calculated for all structures available in the CSD. Their energy values were found to be below zero in 99.86% of the cases. Finally, 500 random structures were minimized, and the change in density and energy was examined. The mean error in the case of density was below 4.06%, and for energy it was below 5.7%. The obtained general force field calculated Gibbs lattice energies of 259 041 known crystal structures within a few hours. Since Gibbs energy defines the reaction energy, the calculated energy can be used to predict chemical-physical properties of crystals, for instance, the formation of co-crystals, polymorph stability and solubility.
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6
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Zhou F, Collard L, Robeyns K, Leyssens T, Shemchuk O. L-Proline, a resolution agent able to target both enantiomers of mandelic acid: an exciting case of stoichiometry controlled chiral resolution. Chem Commun (Camb) 2022; 58:8560-8563. [PMID: 35815867 DOI: 10.1039/d2cc02942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a thought-provoking development in chiral resolution. Using a resolving agent of a given handedness, L-proline, we show that both R- and S-enantiomers of mandelic acid can be resolved from a racemic mixture simply by varying the stoichiometry. We are the first to report this specific feature, achieved by the existence of stoichiometrically diverse cocrystal systems between R- and S-mandelic acid and L-proline.
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Affiliation(s)
- Fuli Zhou
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, B-1348 Louvain-La-Neuve, Belgium.
| | - Laurent Collard
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, B-1348 Louvain-La-Neuve, Belgium.
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, B-1348 Louvain-La-Neuve, Belgium.
| | - Tom Leyssens
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, B-1348 Louvain-La-Neuve, Belgium.
| | - Oleksii Shemchuk
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, B-1348 Louvain-La-Neuve, Belgium.
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7
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Abstract
An approach which allows one to estimate the solubility of two-component molecular crystals in various solvents at different temperatures without any information on their melting temperatures and enthalpies was proposed.
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Affiliation(s)
- German L. Perlovich
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
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8
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Affiliation(s)
- Alessia Bacchi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parma, Italy
- Biopharmanet-TEC, Università degli studi di Parma, Parma, Italy
| | - Paolo Pio Mazzeo
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parma, Italy
- Biopharmanet-TEC, Università degli studi di Parma, Parma, Italy
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9
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Feliciano IO, Silva DP, Piedade MFM, Bernardes CES, Minas da Piedade ME. First and Second Dissociation Enthalpies in Bi-Component Crystals Consisting of Maleic Acid and L-Phenylalanine. Molecules 2021; 26:molecules26185714. [PMID: 34577186 PMCID: PMC8469174 DOI: 10.3390/molecules26185714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/16/2022] Open
Abstract
The energetics of the stepwise dissociation of a A:B2 bi-component crystal, according to A:B2(cr) → A:B(cr) + B(cr) and A:B(cr) → A(cr) + B(cr), was investigated using MA:Phe2 and MA:Phe (MA = maleic acid; Phe = L-phenylalanine) as model systems. The enthalpy changes associated with these sequential processes and with the overall dissociation reaction A:B2(cr) → A(cr) + 2B(cr) were determined by solution calorimetry. It was found that they are all positive, indicating that there is a lattice enthalpy gain when MA:Phe2 is formed, either from the individual precursors or by adding Phe to MA:Phe. Single-crystal X-ray diffraction (SCXRD) analysis showed that MA:Phe2 is best described as a protic salt containing a maleate anion (MA−) and two non-equivalent L-phenylalanine units, both linked to MA− by NH···O hydrogen bonds (H-bond): one of these units is protonated (HPhe+) and the other zwitterionic (Phe±). Only MA− and HPhe+ molecules are present in the MA:Phe lattice. In this case, however, NH···O and OH···O H-bonds are formed between each MA− unit and two HPhe+ molecules. Despite these structural differences, the enthalpy cost for the removal of the zwitterionic Phe± unit from the MA:Phe2 lattice to yield MA:Phe is only 0.9 ± 0.4 kJ mol−1 higher than that for the dissociation of MA:Phe, which requires a proton transfer from HPhe+ to MA− and the rearrangement of L-phenylalanine to the zwitterionic, Phe±, form. Finally, a comparison of the dissociation energetics and structures of MA:Phe and of the previously reported glycine maleate (MA:Gly) analogue indicated that parameters, such as the packing coefficient, density, hydrogen bonds formed, or fusion temperature, are not necessarily good descriptors of dissociation enthalpy or lattice enthalpy trends when bi-component crystals with different molecular composition are being compared, even if the stoichiometry is the same.
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Affiliation(s)
- Inês O. Feliciano
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (I.O.F.); (C.E.S.B.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
| | - Daniela P. Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - M. Fátima M. Piedade
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Carlos E. S. Bernardes
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (I.O.F.); (C.E.S.B.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
| | - Manuel E. Minas da Piedade
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (I.O.F.); (C.E.S.B.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
- Correspondence: ; Tel.: +351-217500005
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10
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Harris N, Benedict J, Dickie DA, Pagola S. Mechanochemical synthesis insights and solid-state characterization of quininium aspirinate, a glass-forming drug-drug salt. Acta Crystallogr C Struct Chem 2021; 77:566-576. [PMID: 34482301 PMCID: PMC8418670 DOI: 10.1107/s2053229621008275] [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: 03/30/2021] [Accepted: 08/11/2021] [Indexed: 11/10/2022] Open
Abstract
Quinine (an antimalarial) and aspirin (a nonsteroidal anti-inflammatory drug) were combined into a new drug-drug salt, quininium aspirinate, C20H25N2O2+·C9H7O4-, by liquid-assisted grinding using stoichiometric amounts of the reactants in a 1:1 molar ratio, and water, EtOH, toluene, or heptane as additives. A tetrahydrofuran (THF) solution of the mechanochemical product prepared using EtOH as additive led to a single crystal of the same material obtained by mechanochemistry, which was used for crystal structure determination at 100 K. Powder X-ray diffraction ruled out crystallographic phase transitions in the 100-295 K interval. Neat mechanical treatment (in a mortar and pestle, or in a ball mill at 20 or 30 Hz milling frequencies) gave rise to an amorphous phase, as shown by powder X-ray diffraction; however, FT-IR spectroscopy unambiguously indicates that a mechanochemical reaction has occurred. Neat milling the reactants at 10 and 15 Hz led to incomplete reactions. Thermogravimetry and differential scanning calorimetry indicate that the amorphous and crystalline mechanochemical products form glasses/supercooled liquids before melting, and do not recrystallize upon cooling. However, the amorphous material obtained by neat grinding crystallizes upon storage into the salt reported. The mechanochemical synthesis, crystal structure analysis, Hirshfeld surfaces, powder X-ray diffraction, thermogravimetry, differential scanning calorimetry, FT-IR spectroscopy, and aqueous solubility of quininium aspirinate are herein reported.
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Affiliation(s)
- Nehemiah Harris
- Department of Chemistry and Biochemistry, Old Dominion University, 4402 Elkhorn Ave., Norfolk, VA 23529, USA
| | - Jubilee Benedict
- Department of Chemistry and Biochemistry, Old Dominion University, 4402 Elkhorn Ave., Norfolk, VA 23529, USA
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
| | - Silvina Pagola
- Department of Chemistry and Biochemistry, Old Dominion University, 4402 Elkhorn Ave., Norfolk, VA 23529, USA
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11
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Drozd KV, Manin AN, Voronin AP, Boycov DE, Churakov AV, Perlovich GL. A combined experimental and theoretical study of miconazole salts and cocrystals: crystal structures, DFT computations, formation thermodynamics and solubility improvement. Phys Chem Chem Phys 2021; 23:12456-12470. [PMID: 34037030 DOI: 10.1039/d1cp00956g] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Experimental and theoretical screening of multi-component crystal forms of miconazole (MCL), an antifungal drug, with ten aliphatic dicarboxylic acids was performed. Seven multi-component molecular crystals were isolated and identified by different analytical techniques, including the powder X-ray diffractometry (PXRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and solubility methods. The crystal structures of the MCL hemihydrate, two cocrystals with succinic ([MCL + SucAc] (2 : 1)) and fumaric acids ([MCL + FumAc] (2 : 1)) and one salt with maleic acid ([MCL + MleAc] (1 : 1)) were redetermined. The new cocrystal of MCL with adipic acid ([MCL + AdpAc] (2 : 1)) was investigated by single crystal X-ray diffractometry. It was found that the AdpAc molecule in the cocrystal has an unusual anticlinal conformation. The combination of periodic density functional theory (DFT) computations and quantum topology analysis confirmed the structure-directing role of the acid-imidazole heterosynthon for the considered crystals. The melting temperatures of all the studied multi-component crystals are between the values of the corresponding individual components except [MCL + MleAc] (1 : 1). A thermal analysis has shown that the thermodynamic and thermophysical characteristics of the considered two-component molecular crystals are strongly dependent both on specific interactions (presence of sites of donor-acceptor interactions and hydrogen bond formation) and on nonspecific interactions - molecule polarizability. Based on the sublimation thermodynamics database of molecular crystals, the standard sublimation thermodynamic functions of MCL were evaluated. The thermodynamic functions of multi-component crystal formation based on MCL were calculated and analyzed. Solubility experiments on the MCL multi-component crystals were carried out in isotonic aqueous buffer solutions at pH 1.2 and 6.8 and compared with the solubility of the MCL free base and its nitrate salt. It was found that the salt/cocrystal formation of MCL with dicarboxylic acids considerably increased the MCL solubility in pH 6.8 buffer. The biggest MCL solubility enhancement was observed in the [MCL + TartAc] (1 : 1) salt. The solubility value of MCL in the [MCL + TartAc] (1 : 1) salt is commensurate with the commercial MCL nitrate salt.
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Affiliation(s)
- K V Drozd
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - A N Manin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - A P Voronin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - D E Boycov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
| | - A V Churakov
- Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninsky Prosp., Moscow, 119991, Russian Federation
| | - G L Perlovich
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., Ivanovo, 153045, Russian Federation.
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12
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In-silico methods of cocrystal screening: A review on tools for rational design of pharmaceutical cocrystals. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Surov AO, Voronin AP, Vasilev NA, Ilyukhin AB, Perlovich GL. Novel cocrystals of the potent 1,2,4-thiadiazole-based neuroprotector with carboxylic acids: virtual screening, crystal structures and solubility performance. NEW J CHEM 2021. [DOI: 10.1039/d0nj05644h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Five new multicomponent solid forms of the biologically active 1,2,4-thiadiazole derivative (TDZH) with dicarboxylic and hydroxybenzoic acids have been discovered by combined virtual/experimental cocrystal screening.
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Affiliation(s)
- Artem O. Surov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- 153045 Ivanovo
- Russia
| | - Alexander P. Voronin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- 153045 Ivanovo
- Russia
| | - Nikita A. Vasilev
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- 153045 Ivanovo
- Russia
| | | | - German L. Perlovich
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- 153045 Ivanovo
- Russia
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14
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Voronin AP, Vasilev NA, Surov AO, Churakov AV, Perlovich GL. Exploring the solid form landscape of the antifungal drug isavuconazole: crystal structure analysis, phase transformation behavior and dissolution performance. CrystEngComm 2021. [DOI: 10.1039/d1ce01353j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Phase transformation of ISV solid forms during dissolution.
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Affiliation(s)
- Alexander P. Voronin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., 153045 Ivanovo, Russia
| | - Nikita A. Vasilev
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., 153045 Ivanovo, Russia
| | - Artem O. Surov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., 153045 Ivanovo, Russia
| | - Andrei V. Churakov
- N. S. Kurnakov Institute of General and Inorganic Chemistry RAS, 31 Leninsky Prosp, 119991, Moscow, Russia
| | - German L. Perlovich
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya St., 153045 Ivanovo, Russia
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15
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Evtushenko DN, Arkhipov SG, Fateev AV, Izaak TI, Egorova LA, Skorik NA, Vodyankina OV, Boldyreva EV. A cocrystal of L-ascorbic acid with picolinic acid: the role of O-H...O, N-H...O and C-H...O hydrogen bonds and L-ascorbic acid conformation in structure stabilization. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:967-978. [PMID: 33289709 DOI: 10.1107/s2052520620012421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/09/2020] [Indexed: 06/12/2023]
Abstract
A new 1:1 cocrystal (L-Asc-Pic) of L-ascorbic acid (vitamin C) with picolinic acid was prepared as a powder and as single crystals. The crystal structure was solved and refined from single-crystal X-ray diffraction (SCXRD) data collected at 293 (2) and 100 (2) K. The samples of the L-Asc-Pic cocrystal were characterized by elemental (HCNS) analysis and titrimetric methods, TG/DTG/DSC, and IR and Raman spectroscopy. The asymmetric unit comprises a picolinic acid zwitterion and an L-ascorbic acid molecule. The stabilization energy of intermolecular interactions involving hydrogen bonds, the vibrational spectrum and the energies of the frontier molecular orbitals were calculated using the GAUSSIAN09 and the CrystalExplorer17 programs. The charge distribution on the atoms of the L-Asc-Pic cocrystal, L-ascorbic acid itself and its 12 known cocrystals (structures from Version 5.40 of the Cambridge Structural Database) were calculated by the methods of Mulliken, Voronoi and Hirshfeld charge analyses (ADF) at the bp86/TZ2P+ level of theory. The total effective charges and conformations of the L-ascorbic acid molecules in the new and previously reported cocrystals were compared with those of the two symmetry-independent molecules in the crystals of L-ascorbic acid. A correlation between molecular conformation and its effective charge is discussed.
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Affiliation(s)
- Diana N Evtushenko
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Sergey G Arkhipov
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russian Federation
| | - Alexander V Fateev
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Tatyana I Izaak
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Lidia A Egorova
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Nina A Skorik
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Olga V Vodyankina
- National Research Tomsk State University, Lenin Ave. 36, Tomsk, 634050, Russian Federation
| | - Elena V Boldyreva
- Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk, 630090, Russian Federation
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16
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Khalaji M, Wróblewska A, Wielgus E, Bujacz GD, Dudek MK, Potrzebowski MJ. Structural variety of heterosynthons in linezolid cocrystals with modified thermal properties. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:892-912. [PMID: 33017322 DOI: 10.1107/s2052520620010896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
In a search for new crystalline forms of linezolid with modified thermal properties five cocrystals of this wide range antibiotic with aromatic acids were obtained via mechanochemical grinding and analyzed with single crystal X-ray diffraction, solid-state NMR spectroscopy, powder X-ray diffraction and DSC measurements. The coformers used in this study were benzoic acid, p-hydroxybenzoic acid, protocatechuic acid, γ-resorcylic acid and gallic acid. In each of the cocrystals distinct structural features have been found, including a variable amount of water and different heterosynthons, indicating that there is more than one type of intermolecular interaction preferred by the linezolid molecule. Basing on the frequency of the observed supramolecular synthons, the proposed hierarchy of the hydrogen-bond acceptor sites of linezolid (LIN) is C=Oamide > C=Ooxazolidone > C-O-Cmorpholine > C-N-Cmorpholine > C-O-Coxazolidone. In addition, aromatic-aromatic interactions were found to be important in the stabilization of the analyzed structures. The obtained cocrystals show modified thermal properties, with four of them having melting points lower than the temperature of the phase transition from linezolid form II to linezolid form III. Such a change in this physicochemical property allows for the future application of melting-based techniques of introducing linezolid into drug delivery systems. In addition a change in water solubility of linezolid upon cocrystalization was evaluated, but only in the case of the cocrystal with protocatechuic acid was there a significant (43%) improvement in solubility in comparison with linezolid.
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Affiliation(s)
- Mehrnaz Khalaji
- Centre of Molecular and Macromolecular Studies of Polish Academy of Sciences, Sienkiewicza 112, Lodz, 90-363, Poland
| | - Aneta Wróblewska
- Centre of Molecular and Macromolecular Studies of Polish Academy of Sciences, Sienkiewicza 112, Lodz, 90-363, Poland
| | - Ewelina Wielgus
- Centre of Molecular and Macromolecular Studies of Polish Academy of Sciences, Sienkiewicza 112, Lodz, 90-363, Poland
| | - Grzegorz D Bujacz
- Institute of Technical Biochemistry, Technical University of Lodz, Stefanowskiego 4/10, Lodz, 90-924, Poland
| | - Marta K Dudek
- Centre of Molecular and Macromolecular Studies of Polish Academy of Sciences, Sienkiewicza 112, Lodz, 90-363, Poland
| | - Marek J Potrzebowski
- Centre of Molecular and Macromolecular Studies of Polish Academy of Sciences, Sienkiewicza 112, Lodz, 90-363, Poland
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17
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Perlovich G. Melting points of one- and two-component molecular crystals as effective characteristics for rational design of pharmaceutical systems. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2020; 76:696-706. [DOI: 10.1107/s2052520620007362] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/02/2020] [Indexed: 11/10/2022]
Abstract
Based on the review of the literature results the database of the fusion temperatures of two-component molecular crystals (1947 co-crystals) and individual components thereof was built up. To improve the design of co-crystals with predictable melting temperatures, the correlation equations connecting co-crystals and individual components melting points were deduced. These correlations were discovered for 18 co-crystals of different stoichiometric compositions. The correlation coefficients were analysed, and the conclusions about the main/determinative and slave components of a co-crystal were made. The comparative analysis of the melting points of co-crystals composed from the same components but with different stoichiometry showed a co-crystal melting temperature growth when increasing the content of a high-melting component. The differences in the melting temperatures were determined and discussed for the following: (a) monotropic polymorphic forms, (b) two-component crystals with the same composition and different stoichiometry, and (c) two-component crystals based on racemates and enantiomers. The database analysis revealed the active pharmaceutical ingredients (APIs) and co-formers (CFs) more particularly used for co-crystal design. The approach based on an efficacy parameter allowing the prediction of co-crystals with melting points lower than those of individual compounds was developed.
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18
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O'Malley C, Erxleben A, Kellehan S, McArdle P. Unprecedented morphology control of gas phase cocrystal growth using multi zone heating and tailor made additives. Chem Commun (Camb) 2020; 56:5657-5660. [PMID: 32314979 DOI: 10.1039/d0cc01067g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, it is shown for the first time that cocrystals can be grown by cosublimation with unprecedented morphology control using tailor made additives. Multicrystalline sea-urchin motifs and solids that look like candy-floss are transformed into block-like and needle-like single crystals using additives.
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Affiliation(s)
- Ciarán O'Malley
- School of Chemistry, National University of Ireland, Galway, Ireland.
| | - Andrea Erxleben
- School of Chemistry, National University of Ireland, Galway, Ireland. and Synthesis and Solid State Pharmaceutical Centre (SSPC), Ireland
| | - Seamus Kellehan
- School of Chemistry, National University of Ireland, Galway, Ireland.
| | - Patrick McArdle
- School of Chemistry, National University of Ireland, Galway, Ireland.
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19
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Manin AN, Drozd KV, Surov AO, Churakov AV, Volkova TV, Perlovich GL. Identification of a previously unreported co-crystal form of acetazolamide: a combination of multiple experimental and virtual screening methods. Phys Chem Chem Phys 2020; 22:20867-20879. [DOI: 10.1039/d0cp02700f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we demonstrate an approach of trying multiple methods in a more comprehensive search for co-crystals of acetazolamide.
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Affiliation(s)
- Alex N. Manin
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
| | - Ksenia V. Drozd
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
| | - Artem O. Surov
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
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20
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Ahuja D, Svärd M, Lusi M, Rasmuson ÅC. Solution and calorimetric thermodynamic study of a new 1 : 1 sulfamethazine–3-methylsalicylic acid co-crystal. CrystEngComm 2020. [DOI: 10.1039/d0ce00498g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The formation thermodynamics of a new 1 : 1 sulfamethazine–3-methylsalicylic acid co-crystal reveals spontaneity of formation associated with a positive enthalpy change.
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Affiliation(s)
- Dipali Ahuja
- SSPC
- the SFI Research Centre for Pharmaceuticals
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
| | - Michael Svärd
- Department of Chemical Engineering
- KTH Royal Institute of Technology
- SE-10044 Stockholm
- Sweden
| | - Matteo Lusi
- SSPC
- the SFI Research Centre for Pharmaceuticals
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
| | - Åke C. Rasmuson
- SSPC
- the SFI Research Centre for Pharmaceuticals
- Bernal Institute
- Department of Chemical Sciences
- University of Limerick
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21
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Perlovich GL, Volkova TV. Interrelation of thermodynamic sublimation characteristics with crystal structure: adamantane and memantine derivatives of sulfonamide molecular crystals. CrystEngComm 2020. [DOI: 10.1039/d0ce00108b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A number of sulfonamide compounds with adamantane (tricyclo[3.3.1.13,7]decane) and memantine (3,5-dimethyladamantan-1-amine) fragments have been synthesized and characterized.
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Affiliation(s)
- German L. Perlovich
- Institution of the Russian Academy of Sciences
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
| | - Tatyana V. Volkova
- Institution of the Russian Academy of Sciences
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
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22
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Roca-Paixão L, Correia NT, Affouard F. Affinity prediction computations and mechanosynthesis of carbamazepine based cocrystals. CrystEngComm 2019. [DOI: 10.1039/c9ce01160a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A combination of the excess enthalpy with the fusion entropy of the pure coformer is suggested to be of interest for coformers screening in order to form a multicomponent system with a given API (cocrystal/co-amorphous).
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Affiliation(s)
- Luisa Roca-Paixão
- Univ. Lille
- CNRS
- INRA
- ENSCL
- UMR 8207 – UMET – Unité Matériaux et Transformations
| | - Natália T. Correia
- Univ. Lille
- CNRS
- INRA
- ENSCL
- UMR 8207 – UMET – Unité Matériaux et Transformations
| | - Frédéric Affouard
- Univ. Lille
- CNRS
- INRA
- ENSCL
- UMR 8207 – UMET – Unité Matériaux et Transformations
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23
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Manin AN, Drozd KV, Churakov AV, Perlovich GL. Design of 4-aminobenzoic acid two-component molecular crystals: prediction and experiments. CrystEngComm 2019. [DOI: 10.1039/c8ce01857j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cocrystal formation of 4-aminobenzoic acid with a variety of pyrimidine, pyridine and benzamide derivatives has been investigated.
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Affiliation(s)
- Alex N. Manin
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
| | - Ksenia V. Drozd
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
| | - Andrei V. Churakov
- Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
- Moscow
- Russian Federation
| | - German L. Perlovich
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
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24
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Perlovich GL. Two-component molecular crystals: relationship between the entropy term and the molecular volume of co-crystal formation. CrystEngComm 2018. [DOI: 10.1039/c8ce00592c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
There are very few articles that investigate the thermodynamic formation of two-component molecular crystals.
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Affiliation(s)
- German L. Perlovich
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russia
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25
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Surov AO, Churakov AV, Proshin AN, Dai XL, Lu T, Perlovich GL. Cocrystals of a 1,2,4-thiadiazole-based potent neuroprotector with gallic acid: solubility, thermodynamic stability relationships and formation pathways. Phys Chem Chem Phys 2018; 20:14469-14481. [DOI: 10.1039/c8cp02532k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermodynamic stability relationships and the formation pathways of the cocrystals of 1,2,4-thiadiazole-based neuroprotector with gallic acid were investigated.
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Affiliation(s)
- Artem O. Surov
- Institution of the Russian Academy of Sciences
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
| | - Andrei V. Churakov
- N.S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
- Moscow
- Russia
| | - Alexey N. Proshin
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences
- Chernogolovka
- Russia
| | - Xia-Lin Dai
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou
- China
| | - Tongbu Lu
- Institute for New Energy Materials and Low Carbon Technologies
- Tianjin University of Technology
- Tianjin
- China
| | - German L. Perlovich
- Institution of the Russian Academy of Sciences
- G.A. Krestov Institute of Solution Chemistry RAS
- 153045 Ivanovo
- Russia
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26
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Bao J, Zhang Z, Yan Z, Wang JR, Mei X. Cocrystallization in vitamin B9 gels to construct stoichiometry-controlled isostructural materials. CrystEngComm 2018. [DOI: 10.1039/c7ce02083j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential application of structurally equivalent Cl, Br, and I in the design of isostructural materials in VB9 gels is illustrated by constructing pairs of solids that exhibit different fluorescence properties.
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Affiliation(s)
- Junjie Bao
- Nano Science and Technology Institute
- University of Science and Technology of China
- Suzhou
- China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
| | - Zaiyong Zhang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Zhicheng Yan
- Nano Science and Technology Institute
- University of Science and Technology of China
- Suzhou
- China
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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27
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Newman A, Reutzel-Edens SM, Zografi G. Coamorphous Active Pharmaceutical Ingredient-Small Molecule Mixtures: Considerations in the Choice of Coformers for Enhancing Dissolution and Oral Bioavailability. J Pharm Sci 2017; 107:5-17. [PMID: 28989014 DOI: 10.1016/j.xphs.2017.09.024] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 09/19/2017] [Accepted: 09/22/2017] [Indexed: 10/18/2022]
Abstract
In the recent years, coamorphous systems, containing an active pharmaceutical ingredient (API) and a small molecule coformer have appeared as alternatives to the use of either amorphous solid dispersions containing polymer or cocrystals of API and small molecule coformers, to improve the dissolution and oral bioavailability of poorly soluble crystalline API. This Commentary article considers the relative properties of amorphous solid dispersions and coamorphous systems in terms of methods of preparation; miscibility; glass transition temperature; physical stability; hygroscopicity; and aqueous dissolution. It also considers important questions concerning the fundamental criteria to be used for the proper selection of a small molecule coformer regarding its ability to form either coamorphous or cocrystal systems. Finally, we consider various aspects of product development that are specifically associated with the formulation of commercial coamorphous systems as solid oral dosage forms. These include coformer selection; screening; methods of preparation; preformulation; physical stability; bioavailability; and final formulation. Through such an analysis of coamorphous API-small molecule coformer systems, against the more widely studied API-polymer dispersions and cocrystals, it is believed that the strengths and weaknesses of coamorphous systems can be better understood, leading to more efficient formulation and manufacture of such systems for enhancing oral bioavailability.
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Affiliation(s)
- Ann Newman
- Seventh Street Development Group LLC, Kure Beach, North Carolina 28449.
| | - Susan M Reutzel-Edens
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - George Zografi
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53706
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