101
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Zhou Q, Tan Z, Yang D, Tu J, Wang Y, Zhang Y, Liu Y, Gan G. Improving the Solubility of Aripiprazole by Multicomponent Crystallization. CRYSTALS 2021; 11:343. [DOI: 10.3390/cryst11040343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Aripiprazole (ARI) is a third-generation antipsychotic with few side effects but a poor solubility. Salt formation, as one common form of multicomponent crystals, is an effective strategy to improve pharmacokinetic profiles. In this work, a new ARI salt with adipic acid (ADI) and its acetone hemisolvate were obtained successfully, along with a known ARI salt with salicylic acid (SAL). Their comprehensive characterizations were conducted using X-ray diffraction and differential scanning calorimetry. The crystal structures of the ARI-ADI salt acetone hemisolvate and ARI-SAL salt were elucidated by single-crystal X-ray diffraction for the first time, demonstrating the proton transfer from a carboxyl group of acid to ARI piperazine. Theoretical calculations were also performed on weak interactions. Moreover, comparative studies on pharmaceutical properties, including powder hygroscopicity, stability, solubility, and the intrinsic dissolution rate, were carried out. The results indicated that the solubility and intrinsic dissolution rate of the ARI-ADI salt and its acetone hemisolvate significantly improved, clearly outperforming that of the ARI-SAL salt and the untreated ARI. The study presented one potential alternative salt of aripiprazole and provided a potential strategy to increase the solubility of poorly water-soluble drugs.
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102
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Ross SA, Hurt AP, Antonijevic M, Bouropoulos N, Ward A, Basford P, McAllister M, Douroumis D. Continuous Manufacture and Scale-Up of Theophylline-Nicotinamide Cocrystals. Pharmaceutics 2021; 13:419. [PMID: 33804705 PMCID: PMC8004052 DOI: 10.3390/pharmaceutics13030419] [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: 02/25/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was the manufacturing and scale-up of theophylline-nicotinamide (THL-NIC) pharmaceutical cocrystals processed by hot-melt extrusion (HME). The barrel temperature profile, feed rate and screw speed were found to be the critical processing parameters with a residence time of approximately 47 s for the scaled-up batches. Physicochemical characterization using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and X-ray diffraction of bulk and extruded materials revealed the formation of high purity cocrystals (98.6%). The quality of THL-NIC remained unchanged under accelerated stability conditions.
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Affiliation(s)
- Steven A. Ross
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Andrew P. Hurt
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Milan Antonijevic
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
| | - Nicolaos Bouropoulos
- Department of Materials Science, University of Patras, Rio, 26504 Patras, Greece;
- Foundation for Research and Technology Hellas, Institute of Chemical Engineering and High Temperature, Chemical Processes, 26504 Patras, Greece
| | - Adam Ward
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, West Yorkshire HD1 3DH, UK;
| | - Pat Basford
- Pfizer Global Research & Development, Ramsgate Road, Sandwich CT13 9NJ, UK; (P.B.); (M.M.)
| | - Mark McAllister
- Pfizer Global Research & Development, Ramsgate Road, Sandwich CT13 9NJ, UK; (P.B.); (M.M.)
| | - Dennis Douroumis
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, Chatham Maritime, Kent ME4 4TB, UK; (S.A.R.); (A.P.H.); (M.A.)
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103
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Ueda H, Hirakawa Y, Tanaka H, Miyano T, Sugita K. Applicability of an Experimental Grade of Hydroxypropyl Methylcellulose Acetate Succinate as a Carrier for Formation of Solid Dispersion with Indomethacin. Pharmaceutics 2021; 13:pharmaceutics13030353. [PMID: 33800229 PMCID: PMC8001926 DOI: 10.3390/pharmaceutics13030353] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022] Open
Abstract
The transformation of a crystalline drug into an amorphous form is a promising way to enhance the oral bioavailability of poorly water-soluble drugs. Blending of a carrier, such as a hydrophilic polymer, with an amorphous drug is a widely used method to produce a solid dispersion and inhibit crystallization. This study investigates an experimental grade of hydroxypropyl methylcellulose acetate succinate, HPMCAS-MX (MX), as a solid dispersion carrier. Enhancement of thermal stability and reduction of the glass transition temperature (Tg) of MX compared with those of the conventional grade were evaluated through thermogravimetric analysis and differential scanning calorimetry (DSC). The formation of a homogeneous amorphous solid dispersion between MX and indomethacin was confirmed by X-ray powder diffraction analysis, DSC, and Raman mapping. It was observed that 10–30% MX did not act as an anti-plasticizer, but the utilization of >40% MX caused an increase in Tg and reduction of molecular mobility. This could be explained by a change in intermolecular interactions, inferred from infrared spectroscopy combined with principal component analysis. HPMCAS-MX exhibited similar performance to that of conventional-grade, HPMCAS-MG. Although HPMCAS-MX has thermal properties different from those of conventional-grade HPMCAS-MG, it retains its ability as a solid dispersion carrier.
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Affiliation(s)
- Hiroshi Ueda
- Physical Chemistry, Laboratory for Medicinal Chemistry Research, Shionogi & Co., Ltd., Osaka 561-0825, Japan; (T.M.); (K.S.)
- Correspondence:
| | - Yuya Hirakawa
- Biologics, Laboratory for Advanced Medicine Research, Shionogi & Co., Ltd., Osaka 561-0825, Japan;
| | - Hironori Tanaka
- Formulation R&D Laboratory, Formulation Design Department, Shionogi & Co., Ltd., Hyogo 660-0813, Japan;
| | - Tetsuya Miyano
- Physical Chemistry, Laboratory for Medicinal Chemistry Research, Shionogi & Co., Ltd., Osaka 561-0825, Japan; (T.M.); (K.S.)
| | - Katsuji Sugita
- Physical Chemistry, Laboratory for Medicinal Chemistry Research, Shionogi & Co., Ltd., Osaka 561-0825, Japan; (T.M.); (K.S.)
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104
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Two Faces of Water in the Formation and Stabilization of Multicomponent Crystals of Zwitterionic Drug-Like Compounds. Symmetry (Basel) 2021. [DOI: 10.3390/sym13030425] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new hydrated multicomponent crystals of zwitterionic 2-aminonicotinic acid with maleic and fumaric acids have been obtained and thoroughly characterized by a variety of experimental (X-ray analysis and terahertz Raman spectroscopy) and theoretical periodic density functional theory calculations, followed by Bader analysis of the crystalline electron density) techniques. It has been found that the Raman-active band in the region of 300 cm−1 is due to the vibrations of the intramolecular O-H...O bond in the maleate anion. The energy/enthalpy of the intermolecular hydrogen bonds was estimated by several empirical approaches. An analysis of the interaction networks reflects the structure-directing role of the water molecule in the examined multicomponent crystals. A general scheme has been proposed to explain the proton transfer between the components during the formation of multicomponent crystals in water. Water molecules were found to play the key role in this process, forming a “water wire” between the COOH group of the dicarboxylic acid and the COO– group of the zwitterion and the rendering crystal lattice of the considered multicomponent crystals.
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105
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Vasilev NA, Surov AO, Voronin AP, Drozd KV, Perlovich GL. Novel cocrystals of itraconazole: Insights from phase diagrams, formation thermodynamics and solubility. Int J Pharm 2021; 599:120441. [PMID: 33675927 DOI: 10.1016/j.ijpharm.2021.120441] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/26/2022]
Abstract
In this work, the cocrystallization approach was applied to itraconazole (ITR), a very slightly soluble triazole antifungal drug, which led to the formation of two new solid forms of ITR with 4-aminobenzoic acid (4AmBA) and 4-hydroxybenzamide (4OHBZA). A thermodynamic analysis of the solid-liquid binary phase diagrams for the (ITR + 4AmBA) and (ITR + 4OHBZA) systems provided conclusive evidence of the cocrystal stoichiometry: 1:1 for the cocrystal with 4-aminobenzoic acid, and 1:2 for the cocrystal with 4-hydroxybenzamide. Powder X-Ray diffraction analysis confirmed the formation of two different polymorphic forms of the [ITR + 4OHBZA] (1:2) cocrystal obtained either through solution or melt crystallization. Cocrystal formation and polymorphic transition processes were investigated in detail by the DSC and HSM methods. The thermodynamic functions of cocrystal formation were estimated from the solubility of the cocrystals and the corresponding solubility of the pure compounds at different temperatures. The combination of ITR and 4OHBZA was found to be more favorable than the reaction between ITR and 4AmBA in terms of both Gibbs energy and enthalpy. The pH-solubility behavior of the cocrystals was investigated at different pH values using eutectic concentrations of the components and the cocrystal solubility advantage was estimated. It was found that the cocrystallization of itraconazole with 4OHBZA and 4AmBA can potentially increase the drug solubility at pH1.2 and 37 °C by 225 and 64 times, respectively. The cocrystal dissolution behavior in biorelevant media was analyzed in terms of Cmax, σmax parameters (the maximum ITR concentration and supersaturation), and AUC (the concentration area under the curve during the dissolution - supersaturation - precipitation process). The cocrystals had similar σmax values during the dissolution and sustained supersaturation for up to 6 h, which gave them an advantage in the AUC values (13-37 times higher) over the drug. The differences in the dissolution profiles of the cocrystals were rationalized in terms of their dissolution rate values.
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Affiliation(s)
- Nikita A Vasilev
- G.A. Krestov Institute of Solution Chemistry RAS, 153045, Akademicheskaya st., 1, Ivanovo, Russia
| | - Artem O Surov
- G.A. Krestov Institute of Solution Chemistry RAS, 153045, Akademicheskaya st., 1, Ivanovo, Russia
| | - Alexander P Voronin
- G.A. Krestov Institute of Solution Chemistry RAS, 153045, Akademicheskaya st., 1, Ivanovo, Russia
| | - Ksenia V Drozd
- G.A. Krestov Institute of Solution Chemistry RAS, 153045, Akademicheskaya st., 1, Ivanovo, Russia
| | - German L Perlovich
- G.A. Krestov Institute of Solution Chemistry RAS, 153045, Akademicheskaya st., 1, Ivanovo, Russia.
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106
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Mashhadi SMA, Batsanov AS, Sajjad SA, Nazir Y, Bhatti MH, Yunus U. Isoniazid-Gentisic acid cocrystallization: Solubility, Stability, Dissolution rate, Antioxidant and Flowability Properties Studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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107
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Cocrystal Prediction Using Machine Learning Models and Descriptors. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031323] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cocrystals are of much interest in industrial application as well as academic research, and screening of suitable coformers for active pharmaceutical ingredients is the most crucial and challenging step in cocrystal development. Recently, machine learning techniques are attracting researchers in many fields including pharmaceutical research such as quantitative structure-activity/property relationship. In this paper, we develop machine learning models to predict cocrystal formation. We extract descriptor values from simplified molecular-input line-entry system (SMILES) of compounds and compare the machine learning models by experiments with our collected data of 1476 instances. As a result, we found that artificial neural network shows great potential as it has the best accuracy, sensitivity, and F1 score. We also found that the model achieved comparable performance with about half of the descriptors chosen by feature selection algorithms. We believe that this will contribute to faster and more accurate cocrystal development.
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108
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Likhitha U, Narayana B, Sarojini B, Madan Kumar S, Karthick T. Crystallographic and theoretical interpretation of supramolecular architecture in a new salt hydrate of DL-Tartaric acid and Dimethylamine (DLTA-DA). J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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109
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Szell PMJ, Lewandowski JR, Blade H, Hughes LP, Nilsson Lill SO, Brown SP. Taming the dynamics in a pharmaceutical by cocrystallization: investigating the impact of the coformer by solid-state NMR. CrystEngComm 2021. [DOI: 10.1039/d1ce01084k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The anti-HIV pharmaceutical efavirenz is highly dynamic in its crystalline state, and we show that these dynamics can be tamed through the introduction of a coformer.
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Affiliation(s)
| | | | - Helen Blade
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK
| | - Leslie P. Hughes
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK
| | - Sten O. Nilsson Lill
- Early Product Development and Manufacturing, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Steven P. Brown
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
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110
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de Moura Oliveira CH, Freitas JTJ, Rosa IML, Doriguetto AC. A thermodynamic relationship and phase transition study involving two polymorphs of sulfamethoxazole: form I vs. form II. NEW J CHEM 2021. [DOI: 10.1039/d1nj03597e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two sulfamethoxazole polymorphs (form I and II) have been studied. The form II → form I transformation is observed via milling and dissolution in acetonitrile. A phase transition mechanism is proposed based on their supramolecular geometries.
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Affiliation(s)
| | - Jennifer Tavares Jacon Freitas
- Laboratório de Cristalografia, Instituto de Química, Universidade Federal de Alfenas, Alfenas, Minas Gerais, 37130-001, Brazil
- Núcleo de Controle e Qualidade, Faculdade de Ciências Farmacêuticas, Alfenas, Minas Gerais, 37130-001, Brazil
| | - Iara Maria Landre Rosa
- Laboratório de Cristalografia, Instituto de Química, Universidade Federal de Alfenas, Alfenas, Minas Gerais, 37130-001, Brazil
| | - Antônio Carlos Doriguetto
- Laboratório de Cristalografia, Instituto de Química, Universidade Federal de Alfenas, Alfenas, Minas Gerais, 37130-001, Brazil
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111
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Li F, Xu H, Xu X, Cang H, Xu J, Chen S. Supramolecular salts assembled by melamine and two organic hydroxyl acids: synthesis, structure, hydrogen bonds, and luminescent property. CrystEngComm 2021. [DOI: 10.1039/d0ce01647k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two novel supramolecular salts are synthesized by melamine and organic hydroxyl carboxylic acids. The structure prediction, purity, luminescent property, and thermal stability are investigated by theoretical and experimental analysis.
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Affiliation(s)
- Fengcai Li
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Hao Xu
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Xinwei Xu
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Hui Cang
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Jiaying Xu
- State Key Laboratory of Coordination Chemistry, and
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Song Chen
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
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112
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Saikia B, Pathak D, Sarma B. Variable stoichiometry cocrystals: occurrence and significance. CrystEngComm 2021. [DOI: 10.1039/d1ce00451d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Stoichiometric variation in organic cocrystals, their synthesis, structure elucidation and properties are discussed. Accountable reasons for the occurrence of such cocrystals are emphasised.
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Affiliation(s)
- Basanta Saikia
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
- Max Planck Institute for Dynamics of Complex Technical Systems
| | - Debabrat Pathak
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
| | - Bipul Sarma
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784028
- India
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113
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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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114
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Wong SN, Chen YCS, Xuan B, Sun CC, Chow SF. Cocrystal engineering of pharmaceutical solids: therapeutic potential and challenges. CrystEngComm 2021. [DOI: 10.1039/d1ce00825k] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This highlight presents an overview of pharmaceutical cocrystal production and its potential in reviving problematic properties of drugs in different dosage forms. The challenges and future outlook of its translational development are discussed.
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Affiliation(s)
- Si Nga Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
| | - Yu Chee Sonia Chen
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
- Department of Pharmacy, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Bianfei Xuan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
| | - Changquan Calvin Sun
- Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, L2-08B, Laboratory Block, 21 Sassoon Road Pokfulam, Hong Kong SAR, China
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, Hong Kong SAR, China
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115
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Ding XH, Chang YZ, Ou CJ, Lin JY, Xie LH, Huang W. Halogen bonding in the co-crystallization of potentially ditopic diiodotetrafluorobenzene: a powerful tool for constructing multicomponent supramolecular assemblies. Natl Sci Rev 2020; 7:1906-1932. [PMID: 34691532 PMCID: PMC8288552 DOI: 10.1093/nsr/nwaa170] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/07/2019] [Accepted: 08/01/2020] [Indexed: 01/10/2023] Open
Abstract
Halogen bonding is emerging as a significant driving force for supramolecular self-assembly and has aroused great interest during the last two decades. Among the various halogen-bonding donors, we take notice of the ability of 1,4-diiodotetrafluorobenzene (1,4-DITFB) to co-crystallize with diverse halogen-bonding acceptors in the range from neutral Lewis bases (nitrogen-containing compounds, N-oxides, chalcogenides, aromatic hydrocarbons and organometallic complexes) to anions (halide ions, thio/selenocyanate ions and tetrahedral oxyanions), leading to a great variety of supramolecular architectures such as discrete assemblies, 1D infinite chains and 2D/3D networks. Some of them act as promising functional materials (e.g. fluorescence, phosphorescence, optical waveguide, laser, non-linear optics, dielectric and magnetism) and soft materials (e.g. liquid crystal and supramolecular gel). Here we focus on the supramolecular structures of multicomponent complexes and their related physicochemical properties, highlight representative examples and show clearly the main directions that remain to be developed and improved in this area. From the point of view of crystal engineering and supramolecular chemistry, the complexes summarized here should give helpful information for further design and investigation of the elusive category of halogen-bonding supramolecular functional materials.
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Affiliation(s)
- Xue-Hua Ding
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Yong-Zheng Chang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210023, China
| | - Chang-Jin Ou
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Jin-Yi Lin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Ling-Hai Xie
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210023, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210023, China
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), Xi’an 710072, China
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116
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Drug-Nutraceutical Co-Crystal and Salts for Making New and Improved Bi-Functional Analgesics. Pharmaceutics 2020; 12:pharmaceutics12121144. [PMID: 33255979 PMCID: PMC7761172 DOI: 10.3390/pharmaceutics12121144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 11/23/2022] Open
Abstract
The discovery and development of effective analgesics is greatly lagging behind the steadily rising prevalence of chronic pain. Currently prescribed analgesics for chronic pain are lacking in efficacy mainly due to their narrowly-targeted mechanism of action. Driving neuronal hyperexcitability that underlies symptoms of chronic pain are multiple non-neuronal processes, among which are tissue hypoxia and oxidative stress. Here we demonstrate the design, synthesis, and activity of new multi-component bi-functional analgesic crystalline solids, co-crystals, and salts, based on pairing of vasodilatory anti-hypoxic drugs pentoxifylline, clonidine and linsidomine with antioxidant nutraceuticals protocatechuic acid, α-lipoic acid, and caffeic acid. After validation, chemical and structural characterization of these novel salts and co-crystals, topical formulations of the products were tested in a rat model of complex regional pain syndrome. Analgesic effects achieved with the salts and co-crystal exceeded the efficacy and/or potency of constituent compounds indicating that more effective, advanced analgesics can readily be developed by careful pairing of compounds that simultaneously target multiple neural and non-neural processes driving chronic pain.
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117
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Tan DK, Davis DA, Miller DA, Williams RO, Nokhodchi A. Innovations in Thermal Processing: Hot-Melt Extrusion and KinetiSol® Dispersing. AAPS PharmSciTech 2020; 21:312. [PMID: 33161479 PMCID: PMC7649167 DOI: 10.1208/s12249-020-01854-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/14/2020] [Indexed: 12/23/2022] Open
Abstract
Thermal processing has gained much interest in the pharmaceutical industry, particularly for the enhancement of solubility, bioavailability, and dissolution of active pharmaceutical ingredients (APIs) with poor aqueous solubility. Formulation scientists have developed various techniques which may include physical and chemical modifications to achieve solubility enhancement. One of the most commonly used methods for solubility enhancement is through the use of amorphous solid dispersions (ASDs). Examples of commercialized ASDs include Kaletra®, Kalydeco®, and Onmel®. Various technologies produce ASDs; some of the approaches, such as spray-drying, solvent evaporation, and lyophilization, involve the use of solvents, whereas thermal approaches often do not require solvents. Processes that do not require solvents are usually preferred, as some solvents may induce toxicity due to residual solvents and are often considered to be damaging to the environment. The purpose of this review is to provide an update on recent innovations reported for using hot-melt extrusion and KinetiSol® Dispersing technologies to formulate poorly water-soluble APIs in amorphous solid dispersions. We will address development challenges for poorly water-soluble APIs and how these two processes meet these challenges.
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Affiliation(s)
- Deck Khong Tan
- Pharmaceutics Research Laboratory, Arundel Building, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK
| | - Daniel A Davis
- College of Pharmacy, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - Dave A Miller
- DisperSol Technologies, LLC, 111 W. Cooperative Way, Building 3, Suite 300, Georgetown, Texas, 78626, USA
| | - Robert O Williams
- College of Pharmacy, The University of Texas at Austin, Austin, Texas, 78712, USA.
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, Arundel Building, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, UK.
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118
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Xu K, Bai J, Li QL, Zhao S. Polymorphs and Amorphous State of Glipizide: Preparation and Solid-State Transformations. J Pharm Sci 2020; 110:1718-1726. [PMID: 33160976 DOI: 10.1016/j.xphs.2020.10.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 11/16/2022]
Abstract
The solid-state diversity of active pharmaceutical ingredients can provide theoretical guidance for the production and storage of drugs. In this study, three solid forms of glipizide were obtained through various methods, and the solid-state transformations were extensively investigated. Form I could be prepared using evaporative crystallization, cooling crystallization, anti-solvent crystallization, and solvent-mediated slurry conversion experiments (SSCE). Form II was produced by milling. Form III was obtained by milling and SSCE. The results of solid-state transformations indicated that Form I transformed to II during neat milling at 25 °C. In contrast, solvent inhibited the solid-state transformations of Form I under liquid-assisted milling. Forms II and III remained invariable under neat milling at 25 °C, and solid-state transformation of Form III also did not occur in the liquid-assisted milling. In SSCE, the solvent's nature and its temperature significantly influenced the solid-state conversion of amorphous glipizide. Form II converted to either Form I or III in water above 50 °C, and only transformed into Form I at 25 °C. However, the solid-state transformation did not occur when pure Form I or III was stirred in water. Form II also converted to Form I in the organic solvents SSCE at different temperatures.
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Affiliation(s)
- Kailin Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jie Bai
- Analysis and Test Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Qing-Lan Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Suqing Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
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119
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Chambers LI, Grohganz H, Palmelund H, Löbmann K, Rades T, Musa OM, Steed JW. Predictive identification of co-formers in co-amorphous systems. Eur J Pharm Sci 2020; 157:105636. [PMID: 33160046 DOI: 10.1016/j.ejps.2020.105636] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/13/2020] [Accepted: 10/29/2020] [Indexed: 11/30/2022]
Abstract
This work aims to understand the properties of co-formers that form co-amorphous pharmaceutical materials and to predict co-amorphous system formation. A partial least square - discriminant analysis (PLS-DA) was performed using known co-amorphous systems described by 36 variables based on the properties of the co-former and the binding energy of the system. The PLS-DA investigated the propensity to form co-amorphous material of the active pharmaceutical ingredients: mebendazole, carvedilol, indomethacin, simvastatin, carbamazepine and furosemide in combination with 20 amino acid co-formers. The variables that were found to favour the propensity to form co-amorphous systems appear to be a relatively large value for average molecular weight and the sum of the difference between hydrogen bond donors and hydrogen bond acceptors for both components, and a relatively small or negative value for excess enthalpy of mixing, excess enthalpy of hydrogen bonding and the difference in the Hansen parameter for hydrogen bonding of the coformer and the active pharmaceutical ingredient (API). To test the predictive power of this model, 29 potential co-formers were used to form either co-amorphous or crystalline two-component materials with mebendazole. Of these 29 two-component systems, the co-amorphous nature of a total of 26 materials was correctly predicted by the model, giving a predictive hit rate of 90 %.
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Affiliation(s)
- Luke I Chambers
- Durham University, Department of Chemistry, Lower Mountjoy, Stockton Road, Durham, DH1 3LE, UK
| | - Holger Grohganz
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Palmelund
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Korbinian Löbmann
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Osama M Musa
- Ashland LLC, 1005 Route 202/206, Bridgewater, NJ 08807, USA
| | - Jonathan W Steed
- Durham University, Department of Chemistry, Lower Mountjoy, Stockton Road, Durham, DH1 3LE, UK.
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120
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Hot Melt Extrusion: an Emerging Green Technique for the Synthesis of High-Quality Pharmaceutical Cocrystals. J Pharm Innov 2020. [DOI: 10.1007/s12247-020-09512-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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121
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Cavanagh KL, Kuminek G, Rodríguez-Hornedo N. Cocrystal Solubility Advantage and Dose/Solubility Ratio Diagrams: A Mechanistic Approach To Selecting Additives and Controlling Dissolution-Supersaturation-Precipitation Behavior. Mol Pharm 2020; 17:4286-4301. [PMID: 32815731 DOI: 10.1021/acs.molpharmaceut.0c00713] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two of the main questions regarding cocrystal selection and formulation development are whether the will be stable and how fast can it dissolve the drug dose. Dissolving the drug dose may require cocrystals with a high solubility advantage over drug (SA = SCC/SD), but these may have limited potential to sustain drug supersaturation. Thus, we propose a twofold approach to mitigate the risk of drug precipitation by optimizing thermodynamic (SA) and kinetic factors (nucleation inhibitors). This risk can be evaluated by considering the cocrystal SA and drug dose/solubility ratio (D0D = Cdose/SD), which in tandem represent the maximum theoretical supersaturation that a cocrystal may generate, the driving force for drug precipitation, and the potential for dose-/solubility-limited absorption. cocrystals with SA and D0D values above critical supersaturation are prone to rapid precipitation, often negating their utility as a solubility enhancement tool. This work presents a mechanistic approach to controlling the dissolution-supersaturation-precipitation behavior of cocrystal systems, whereby relationships between SA, D0D, and the drug-solubilizing power of surfactants (SPD = SD,T/SD,aq) are used to fine-tune cocrystal-inherent supersaturation by rational additive selection. Experimental results with danazol-vanillin cocrystal demonstrate how SA, D0D, and SPD are key thermodynamic parameters to understanding the kinetic cocrystal behavior and how the risks of cocrystal development may be mitigated through the mechanistic formulation design.
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Affiliation(s)
- Katie L Cavanagh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Gislaine Kuminek
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Naír Rodríguez-Hornedo
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
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122
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Mashhadi SMA, Yufit D, Liu H, Hodgkinson P, Yunus U. Synthesis and structural characterization of cocrystals of isoniazid and cinnamic acid derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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123
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Corlett EK, Blade H, Hughes LP, Sidebottom PJ, Walker D, Walton RI, Brown SP. 5-amino-2-methylpyridinium hydrogen fumarate: An XRD and NMR crystallography analysis. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:1026-1035. [PMID: 32187751 DOI: 10.1002/mrc.5021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/04/2020] [Accepted: 03/14/2020] [Indexed: 06/10/2023]
Abstract
Single-crystal X-ray diffraction structures of the 5-amino-2-methylpyridinium hydrogen fumarate salt have been solved at 150 and 300 K (CCDC 1952142 and 1952143). A base-acid-base-acid ring is formed through pyridinium-carboxylate and amine-carboxylate hydrogen bonds that hold together chains formed from hydrogen-bonded hydrogen fumarate ions. 1 H and 13 C chemical shifts as well as 14 N shifts that additionally depend on the quadrupolar interaction are determined by experimental magic angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) and gauge-including projector-augmented wave (GIPAW) calculation. Two-dimensional homonuclear 1 H-1 H double-quantum (DQ) MAS and heteronuclear 1 H-13 C and 14 N-1 H spectra are presented. Only small differences of up to 0.1 and 0.6 ppm for 1 H and 13 C are observed between GIPAW calculations starting with the two structures solved at 150 and 300 K (after geometry optimisation of atomic positions, but not unit cell parameters). A comparison of GIPAW-calculated 1 H chemical shifts for isolated molecules and the full crystal structures is indicative of hydrogen bonding strength.
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Affiliation(s)
| | - Helen Blade
- Pharmaceutical Development, AstraZeneca, Macclesfield, UK
| | | | | | - David Walker
- Department of Physics, University of Warwick, Coventry, UK
| | | | - Steven P Brown
- Department of Physics, University of Warwick, Coventry, UK
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124
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Li L, Yin XH, Diao KS. Improving the Solubility and Bioavailability of Pemafibrate via a New Polymorph Form II. ACS OMEGA 2020; 5:26245-26252. [PMID: 33073151 PMCID: PMC7557989 DOI: 10.1021/acsomega.0c04005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Pemafibrate is a new generation of anti-hyperlipidemia drugs. However, its poor solubility in water (0.410 mg/mL at 25 °C) has limited its oral bioavailability. In this study, we aimed to improve the solubility and consequently the oral bioavailability of pemafibrate via a new polymorph. A new polymorph Form II was successfully obtained by controlling the crystallization temperature and characterized by multiple analysis methods. The thermodynamic properties of Form I and Form II are almost the same, the melting points of crystal Form I [differential scanning calorimetry (DSC) onset: 97.5 °C, melting entropy: -76 J/g] and crystal Form II (DSC onset: 96.6 °C, melting entropy: -80 J/g) are very close, and the crystallinity of both is very high. In pure water, Form II is about 1.9 times that of Form I in terms of the intrinsic dissolution rate (IDR) and powder solubility. In medium, the IDR characterization was performed in a pH 6.8 buffer. The solubility of this Form II in 0.1 M HCl (pH 1.0) and phosphate buffers (pH 6.8) was investigated, and the results showed that the solubility of Form II was 2.1 and 2.0 times that of Form I, respectively. The crystal structure of Form II shows that the hydrophilic carboxyl groups of the compound are arranged outside the unit cell, which may be the reason for the increased solubility. We also studied the pharmacokinetics of beagle dogs. The mean AUC0-24h of Form II is about 2.6 times that of Form I, indicating that the solubility and bioavailability of pemafibrate can indeed be improved by forming the new polymorph Form II. It may become an ideal solid form of active pharmaceutically ingredient suitable for pharmaceutical preparations, and it can be further studied in the later period.
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Affiliation(s)
- Long Li
- Sichuan
Kelun Pharmaceutical Research Institute Co., Ltd., Chengdu 610000, China
| | - Xian-Hong Yin
- College
of Chemistry and Chemical Engineering, Guangxi
University for Nationalities, Nanning 530006, China
| | - Kai-Sheng Diao
- College
of Chemistry and Chemical Engineering, Guangxi
University for Nationalities, Nanning 530006, China
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125
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Identification and Pharmaceutical Characterization of a New Itraconazole Terephthalic Acid Cocrystal. Pharmaceutics 2020; 12:pharmaceutics12080741. [PMID: 32781726 PMCID: PMC7464664 DOI: 10.3390/pharmaceutics12080741] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/15/2022] Open
Abstract
The crystallization of poorly soluble drug molecules with an excipient into new solid phases called cocrystals has gained a considerable popularity in the pharmaceutical field. In this work, the cocrystal approach was explored for a very poorly water soluble antifungal active, itraconazole (ITR), which was, for the first time, successfully converted into this multicomponent solid using an aromatic coformer, terephthalic acid (TER). The new cocrystal was characterized in terms of its solid-state and structural properties, and a panel of pharmaceutical tests including wettability and dissolution were performed. Evidence of the cocrystal formation was obtained from liquid-assisted grinding, but not neat grinding. An efficient method of the ITR–TER cocrystal formation was ball milling. The stoichiometry of the ITR–TER phase was 2:1 and the structure was stabilized by H-bonds. When comparing ITR–TER with other cocrystals, the intrinsic dissolution rates and powder dissolution profiles correlated with the aqueous solubility of the coformers. The rank order of the dissolution rates of the active pharmaceutical ingredient (API) from the cocrystals was ITR–oxalic acid > ITR–succinic acid > ITR–TER. Additionally, the ITR–TER cocrystal was stable in aqueous conditions and did not transform to the parent drug. In summary, this work presents another cocrystal of ITR that might be of use in pharmaceutical formulations.
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126
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127
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Diniz LF, Carvalho PS, Pena SAC, Gonçalves JE, Souza MAC, de Souza Filho JD, Bomfim Filho LFO, Franco CHJ, Diniz R, Fernandes C. Enhancing the solubility and permeability of the diuretic drug furosemide via multicomponent crystal forms. Int J Pharm 2020; 587:119694. [PMID: 32726610 DOI: 10.1016/j.ijpharm.2020.119694] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/08/2020] [Accepted: 07/23/2020] [Indexed: 01/06/2023]
Abstract
Furosemide (FSM) is a biopharmaceutical classification system (BCS) class IV drug, being a potent loop diuretic used in the treatment of congestive heart failure and edema. Due to its low solubility and permeability, FSM is known for exhibiting poor oral bioavailability. In order to overcome or even minimize these undesirable biopharmaceutical attributes, in this work we have focused on the development of more soluble and permeable multicomponent solid forms of FSM. Using solvent evaporation as crystallization method, a salt and a cocrystal of FSM with imidazole (IMI) and 5-fluorocytosine (5FC) coformers, named FSM-IMI and FSM-5FC, respectively, were successfully prepared. A detailed structural study of these new solid forms was conducted using single and powder X-ray diffraction (SCXRD, PXRD), Fourier Transform Infrared (FT-IR) and proton Nuclear Magnetic Resonance (1H NMR) spectroscopy and thermal analysis (thermogravimetry, differential scanning calorimetry and hot-stage microscopy). Both FSM-IMI and FSM-5FC showed substantial enhancements in the solubility (up 118-fold), intrinsic dissolution (from 1.3 to 2.6-fold) and permeability (from 2.1 to 2.8-fold), when compared to the pure FSM. These results demonstrate the potential of these new solid forms to increase the limited bioavailability of FSM.
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Affiliation(s)
- Luan F Diniz
- Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil; Departamento de Química, Instituto de Ciências Exatas (ICEx), Universidade Federal de Minas Gerais, 31270-901-Belo Horizonte, MG, Brazil
| | - Paulo S Carvalho
- Instituto de Física, Universidade Federal do Mato Grosso do Sul, 79074-460 Campo Grande, MS, Brazil
| | - Sarah A C Pena
- Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - José E Gonçalves
- Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Mateus A C Souza
- Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - José D de Souza Filho
- Departamento de Química, Instituto de Ciências Exatas (ICEx), Universidade Federal de Minas Gerais, 31270-901-Belo Horizonte, MG, Brazil
| | - Lucius F O Bomfim Filho
- Departamento de Química, Instituto de Ciências Exatas (ICEx), Universidade Federal de Minas Gerais, 31270-901-Belo Horizonte, MG, Brazil
| | - Chris H J Franco
- Departamento de Química, Instituto de Ciências Exatas (ICE), Universidade Federal de Juiz de Fora, 36036-900-Juiz de Fora, MG, Brazil
| | - Renata Diniz
- Departamento de Química, Instituto de Ciências Exatas (ICEx), Universidade Federal de Minas Gerais, 31270-901-Belo Horizonte, MG, Brazil
| | - Christian Fernandes
- Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
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128
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Hall AV, Yufit DS, Apperley DC, Senak L, Musa OM, Hood DK, Steed JW. The crystal engineering of radiation-sensitive diacetylene cocrystals and salts. Chem Sci 2020; 11:8025-8035. [PMID: 34094171 PMCID: PMC8163068 DOI: 10.1039/d0sc02540b] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/18/2020] [Indexed: 01/01/2023] Open
Abstract
In this work we develop photoreactive cocrystals/salts of a commercially-important diacetylene, 10,12-pentacosadiynoic acid (PCDA, 1) and report the first X-ray crystal structures of PCDA based systems. The topochemical reactivity of the system is modified depending on the coformer used and correlates with the structural parameters. Crystallisation of 1 with 4,4'-azopyridine (2), 4,4'-bipyridyl (3), and trans-1,2-bis(4-pyridyl)ethylene (4) results in unreactive 2 : 1 cocrystals or a salt in the case of 4,4'-bipiperidine (5). However, salt formation with morpholine (6), diethylamine (7), and n-butylamine (8), results in highly photoreactive salts 12·7 and 1·8 whose reactivity can be explained using topochemical criteria. The salt 1·6 is also highly photoreactive and is compared to a model morpholinium butanoate salt. Resonance Raman spectroscopy reveals structural details of the photopolymer including its conformational disorder in comparison to less photoactive alkali metal salts and the extent of solid state conversion can be monitored by CP-MAS NMR spectroscopy. We also report an unusual catalysis in which amine evaporation from photopolymerised PCDA ammonium salts effectively acts as a catalyst for polymerisation of PCDA itself. The new photoreactive salts exhibit more reactivity but decreased conjugation compared to the commercial lithium salt and are of considerable practical potential in terms of tunable colours and greater range in UV, X-ray, and γ-ray dosimetry applications.
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Affiliation(s)
- Amy V Hall
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - Dmitry S Yufit
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - David C Apperley
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
| | - Larry Senak
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - Osama M Musa
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - David K Hood
- Ashland LLC 1005 Route 202/206 Bridgewater NJ 08807 USA
| | - Jonathan W Steed
- Durham University, Department of Chemistry Lower Mountjoy, Stockton Road Durham DH1 3LE UK
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129
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Topić F, Friščić T. No regioselectivity for the steroid α-face in cocrystallization of exemestane with aromatic cocrystal formers based on phenanthrene and pyrene. CAN J CHEM 2020. [DOI: 10.1139/cjc-2020-0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The anti-cancer steroidal drug exemestane presents significantly different behavior in cocrystallization with arenes compared with the previously explored steroid progesterone. Mechanochemical and solution-based cocrystallization of exemestane with hydroxy derivatives of phenanthrene and pyrene leads to the formation of cocrystals exhibiting clear O–H···O type arene-steroid hydrogen bonds. So far, exemestane and 1-hydroxypyrene have been observed to form only one type of cocrystal, with the 1:1 stoichiometric ratio of the two components. However, there are two stoichiometric variations of the cocrystal of 9-hydroxyphenanthrene and exemestane, with the arene:steroid stoichiometric ratio of either 1:1 or 1:2. Importantly, although cocrystallization of progesterone with the same arene cocrystal formers was previously reported to take place regioselectively through α···π contacts between the α-face of the steroid and the π-electron surface of the arene, the herein explored cocrystals of exemestane reveal α···π and β···π contacts, as well as sidewise interactions involving the arene π-system and different edges of the steroid molecule. The loss of regioselectivity for the steroid α-face in cocrystallization with the two monohydroxylated arenes is tentatively explained by the highly positive electrostatic surface potential of the steroid β-face and a diminished number of C–H groups on the α-face of exemestane compared with progesterone.
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Affiliation(s)
- Filip Topić
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Tomislav Friščić
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
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130
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The role of pH and dose/solubility ratio on cocrystal dissolution, drug supersaturation and precipitation. Eur J Pharm Sci 2020; 152:105422. [PMID: 32531350 DOI: 10.1016/j.ejps.2020.105422] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/28/2020] [Accepted: 06/07/2020] [Indexed: 01/21/2023]
Abstract
Cocrystals that are more soluble than the constituent drug, generate supersaturation levels during dissolution and are predisposed to conversion to the less soluble drug. Drug release studies during cocrystal dissolution generally compare several cocrystals and their crystal structures. However, the influence of drug dose and solubility in different dissolution media has been scarcely reported. The present study aims to investigate how drug dose/solubility ratio (Do=Cdose/Sdrug), cocrystal solubility advantage over drug (SA=Scocrystal/Sdrug), and dissolution media affect cocrystal dissolution-drug supersaturation and precipitation (DSP) behavior. SA and Ksp values of 1:1 cocrystals of meloxicam-salicylic acid (MLX-SLC) and meloxicam-maleic acid (MLX-MLE) were determined at cocrystal/drug eutectic points. Results demonstrate that both cocrystals enhance SA by orders of magnitude (20 to 100 times for the SLC and over 300 times for the MLE cocrystal) in the pH range of 1.6 to 6.5. It is shown that during dissolution, cocrystals regulate the interfacial pH (pHint) to 1.6 for MLX-MLE and 4.5 for MLX-SLC, therefore diminishing the cocrystal dissolution rate dependence on bulk pH. Do values ranged from 2 (pH 6.5) to 410 (pH 1.6) and were mostly determined by the drug solubility dependence on pH. Drug release profiles show that maximum supersaturation (σmax=Cmax/Sdrug)and AUC increased with increasing Do as pH decreased. When Do>>SA, the cocrystal solubility is not sufficient to dissolve the dose so that a dissolution-precipitation quasi-equilibrium state is able to sustain supersaturation for the extent of the experiment (24 h). When Do<<SA, cocrystal solubility is more than adequate to dissolve the dose. Low σmax values (1.7 and 1.5) near the value of Do (2.3 and 2.4) were observed, where a large fraction of the cocrystal added is dissolved to reach σmax. Two different cocrystal to drug conversion pathways were observed: (1) surface nucleation of the metastable MLX polymorph IV on the dissolving cocrystal preceeded formation of the stable MLX polymorph I in bulk solution (in all conditions without FeSSIF), and (2) bulk nucleation of the stable MLX polymorph (in FeSSIF). The interplay between cocrystal SA, Do, and drug precipitation pathways provide a framework to interpret and understand the DSP behavior of cocrystals.
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131
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Du Y, Xue J, Hong Z. Raman and Terahertz Spectroscopic Characterization of Solid-state Cocrystal Formation within Specific Active Pharmaceutical Ingredients. Curr Pharm Des 2020; 26:4829-4846. [PMID: 32445442 DOI: 10.2174/1381612826666200523173448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 04/23/2020] [Indexed: 11/22/2022]
Abstract
Cocrystallization of specific active pharmaceutical ingredients (APIs) in the solid-state phase is becoming a feasible way to improve their corresponding physicochemical properties and ultimate bioavailability without making and breaking any covalent bonds within them. Many recent reports deal with the characterization and analysis topics of pharmaceutical APIs-based cocrystals. In this mini-review, we will focus on the recent steady-state and time-dependent spectroscopic investigation into the cocrystallization of specific APIs based on both Raman and emerging terahertz spectroscopy in pharmaceutical fields. Distinctive spectral, structural and also kinetic information of pharmaceutical APIs-based cocrystals are obtained and discussed, which would highlight the potential of vibrational spectroscopy as an attractive technique for various drug research and development during cocrystallization of specific APIs.
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Affiliation(s)
- Yong Du
- Centre for THz Research, China Jiliang University, Hangzhou City, Zhejiang Province, China
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou City, Zhejiang Province, China
| | - Zhi Hong
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou City, Zhejiang Province, China
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132
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Elkholy NE, Sultan AA, Elosaily GH, El Maghraby GM. Acetone-assisted co-processing of meloxicam with amino acids for enhanced dissolution rate. Pharm Dev Technol 2020; 25:882-891. [DOI: 10.1080/10837450.2020.1755982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Nancy E. Elkholy
- Department of Pharmaceutics, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
| | - Amal A. Sultan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Ghada H. Elosaily
- Department of Pharmaceutics, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Gamal M. El Maghraby
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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133
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Li W, Shi P, Jia L, Zhao Y, Sun B, Zhang M, Gong J, Tang W. Eutectics and Salt of Dapsone With Hydroxybenzoic Acids: Binary Phase Diagrams, Characterization and Evaluation. J Pharm Sci 2020; 109:2224-2236. [PMID: 32294458 DOI: 10.1016/j.xphs.2020.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/23/2020] [Accepted: 04/06/2020] [Indexed: 11/26/2022]
Abstract
Poor solubility and low dissolution rate of pharmaceuticals in many cases largely limit their bioavailability and efficacy. One of the promising approaches to improve dissolution behavior is to develop new multicomponent solid forms. Herein we use this strategy to synthesize new multicomponent solids of dapsone (DAP), which belongs to BCS class IV, with a series of hydroxybenzoic acid coformers. A new salt of DAP with 2,6-dihydroxybenzoic acid (26DHBA) and 4 eutectics with other hydroxybenzoic acids were reported through comprehensive characterizations using powder X-ray diffraction DSC, and vibrational spectroscopy techniques. The salt formation was evidenced by the presence of ionic interactions detected using FT-IR and Raman spectroscopy, and the stoichiometric ratio was determined to be 1:1. Binary phase diagrams were established to determine the composition of eutectics. The cause for salt and eutectic selection was further understood by computing molecular electrostatic potential (MEP) surface where 26DHBA shows the greatest acidity. Moreover, the powder dissolution study and microenvironment pH measurement reveal that both salt and eutectics of DAP display improvements on the dissolution rate and equilibrium concentration in which the acidity of coformers plays a dominant role. Our findings provide a direction for future coformer screening of multicomponent solids with improved pharmaceutical properties.
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Affiliation(s)
- Wanya Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China
| | - Peng Shi
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China
| | - Lina Jia
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China
| | - Yanxiao Zhao
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China
| | - Binqiao Sun
- College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Mingtao Zhang
- College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Junbo Gong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China
| | - Weiwei Tang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, PR China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, PR China.
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134
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Co-crystals, Salts or Mixtures of Both? The Case of Tenofovir Alafenamide Fumarates. Pharmaceutics 2020; 12:pharmaceutics12040342. [PMID: 32290280 PMCID: PMC7238255 DOI: 10.3390/pharmaceutics12040342] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/03/2020] [Accepted: 04/07/2020] [Indexed: 01/18/2023] Open
Abstract
Tenofovir alafenamide fumarate (TAF) is the newest prodrug of tenofovir that constitutes several drug products used for the treatment of HIV/AIDS. Although the solid-state properties of its predecessor tenofovir disoproxil fumarate have been investigated and described in the literature, there are no data in the scientific literature on the solid state properties of TAF. In our report, we describe the preparation of two novel polymorphs II and III of tenofovir alafenamide monofumarate (TA MF2 and TA MF3). The solid-state structure of these compounds was investigated in parallel to the previously known tenofovir alafenamide monofumarate form I (TA MF1) and tenofovir alafenamide hemifumarate (TA HF). Interestingly, the single-crystal X-ray diffraction of TA HF revealed that this derivative exists as a co-crystal form. In addition, we prepared a crystalline tenofovir alafenamide free base (TA) and its hydrochloride salt (TA HCl), which enabled us to determine the structure of TA MF derivatives using 15N-ssNMR (15N-solid state nuclear magnetic resonance). Surprisingly, we observed that TA MF1 exists as a mixed ionization state complex or pure salt, while TA MF2 and TA MF3 can be obtained as pure co-crystal forms.
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135
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Controlled Stepwise Synthesis and Characterization of a Ternary Multicomponent Crystal with 2-Methylresorcinol. CHEMISTRY 2020. [DOI: 10.3390/chemistry2010009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A typical approach of a multicomponent crystal design starts with a retrosynthetic analysis of the target molecule followed by a one-pot reaction of all components. To develop protocols for multicomponent crystal syntheses, controlled stepwise syntheses of a selected crystalline ternary multicomponent system 1 involving 2-methylresorcinol (MRS), tetramethyl-pyrazine (TMP), and 1,2-bis(4-pyridyl)ethane (BPE) are presented. The obtained binary cocrystals 2 (involving MRS and TMP) and 3 (involving MRS and BPE) as well as the final resulting ternary multicomponent system 1 were characterized by X-ray analysis.
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136
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Herrera-España AD, Höpfl H, Morales-Rojas H. Boron-Nitrogen Double Tweezers Comprising Arylboronic Esters and Diamines: Self-Assembly in Solution and Adaptability as Hosts for Aromatic Guests in the Solid State. Chempluschem 2020; 85:548-560. [PMID: 32202393 DOI: 10.1002/cplu.201900717] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 12/11/2019] [Indexed: 01/07/2023]
Abstract
The thermodynamic stability of 1 : 1 and 2 : 1 boron-nitrogen (B←N) adducts formed between aromatic boronic esters with mono- and diamines was studied in solution by NMR and UV-vis spectroscopy with association energies (ΔG°) ranging from -11 to -28 kJ mol-1 . The effect of different substituents in the boronic ester, the nature of the diamine linker, and the effect of the solvent was explored. Stable 2 : 1 B←N adducts with diamines such as 1,3-diaminopropane were produced in solutions of hydrogen-bonding acceptor solvents (acetonitrile and ethyl acetate), which can be isolated in the solid state as crystalline solvates, whereas the use of noncoordinating solvents such as 1,2-dichloroethane afforded mainly 1 : 1 B←N adducts. In suitable combinations, aromatic bis-pyridyl diamines produced stable 2 : 1 B←N adducts that were isolated either as solvent-free solids, solvates, or cocrystals. In these crystalline forms, double-tweezer hosts were observed with an exceptional syn/anti conformational guest-adaptability driven by simultaneous donor-acceptor and C-H⋅⋅⋅π interactions in the tweezer cavities, resembling preorganized covalent tweezer hosts. Interestingly, cocrystals with electron-rich guests such as tetrathiafulvalene and pyrene showed non-centrosymmetric crystal lattices with infinite π-stacked donor-acceptor columns.
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Affiliation(s)
- Angel D Herrera-España
- Centro de Investigaciones Químicas Instituto de Investigación en Ciencias Básicas y Aplicadas (IICBA), Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209, Cuernavaca, Morelos, Mexico
| | - Herbert Höpfl
- Centro de Investigaciones Químicas Instituto de Investigación en Ciencias Básicas y Aplicadas (IICBA), Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209, Cuernavaca, Morelos, Mexico
| | - Hugo Morales-Rojas
- Centro de Investigaciones Químicas Instituto de Investigación en Ciencias Básicas y Aplicadas (IICBA), Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209, Cuernavaca, Morelos, Mexico
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137
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Gutiérrez EL, Godoy AA, Narda GE, Ellena J. Rational design, supramolecular synthesis and solid state characterization of two bicomponent solid forms of mebendazole. CrystEngComm 2020. [DOI: 10.1039/d0ce00924e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
MBZ methyl sulfate and perchlorate were designed based on the statistical probability of the formation of an R22(8) supramolecular heterosynthon.
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Affiliation(s)
- Eduardo L. Gutiérrez
- INQUISAL–CONICET
- Área de Química Física
- Facultad de Química
- Bioquímica y Farmacia
- Universidad Nacional de San Luis
| | - Agustín A. Godoy
- Instituto de Investigaciones en Tecnología Química (INTEQUI)
- Área de Química General e Inorgánica “Dr. G. F. Puelles”
- Facultad de Química, Bioquímica y Farmacia
- Universidad Nacional de San Luis
- San Luis
| | - Griselda E. Narda
- Instituto de Investigaciones en Tecnología Química (INTEQUI)
- Área de Química General e Inorgánica “Dr. G. F. Puelles”
- Facultad de Química, Bioquímica y Farmacia
- Universidad Nacional de San Luis
- San Luis
| | - Javier Ellena
- Instituto de Física de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
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138
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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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139
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Koide T, Takeuchi Y, Otaki T, Yamamoto K, Shimamura R, Ohashi R, Inoue M, Fukami T, Izutsu KI. Quantification of a cocrystal and its dissociated compounds in solid dosage form using transmission Raman spectroscopy. J Pharm Biomed Anal 2020; 177:112886. [DOI: 10.1016/j.jpba.2019.112886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 11/30/2022]
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140
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Khandavilli UBR, Yousuf M, Schaller BE, Steendam RRE, Keshavarz L, McArdle P, Frawley PJ. Plastically bendable pregabalin multi-component systems with improved tabletability and compressibility. CrystEngComm 2020. [DOI: 10.1039/c9ce01625b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pregabalin (SPG) is brittle in nature without the presence of any slip planes. The coformer (OX/SA) facilitates the slip planes in order to make the brittle structure plastically bendable.
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Affiliation(s)
- U. B. Rao Khandavilli
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
- PSC Biotech Limited
| | - Mustafa Yousuf
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
| | - Barbara E. Schaller
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
| | - René R. E. Steendam
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
| | - Leila Keshavarz
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
| | - Patrick McArdle
- School of Chemistry
- National University of Ireland
- Galway H91 TK33
- Ireland
| | - Patrick J. Frawley
- Solid State Pharmaceutical Centre (SSPC)
- University of Limerick
- Limerick
- Ireland
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141
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Werner JE, Swift JA. Data mining the Cambridge Structural Database for hydrate–anhydrate pairs with SMILES strings. CrystEngComm 2020. [DOI: 10.1039/d0ce00273a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A search method based on SMILES string matching was developed to identify hydrate–anhydrate structure pairs in the Cambridge Structure Database.
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Affiliation(s)
- Jen E. Werner
- Georgetown University
- Department of Chemistry
- Washington
- USA
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142
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Li L, Yin XH, Diao KS. Improving the solubility and bioavailability of anti-hepatitis B drug PEC via PEC–fumaric acid cocrystal. RSC Adv 2020; 10:36125-36134. [PMID: 35517067 PMCID: PMC9056957 DOI: 10.1039/d0ra06608g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/23/2020] [Indexed: 11/21/2022] Open
Abstract
A cocrystal of PEC with fumaric acid (FUA) (PEC–FUA, 1 : 1) was successfully obtained and characterized. The mean AUC0–24 h of the cocrystal is about 4.2 times that of free PEC.
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Affiliation(s)
- Long Li
- Sichuan Kelun Pharmaceutical Research Institute Co., Ltd
- Chengdu 610000
- China
| | - Xian-Hong Yin
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning
- China
| | - Kai-Sheng Diao
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning
- China
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143
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Kuang W, Ji S, Wei Y, Zhang J, Lan P. A new 1 : 1 cocrystal of lamotrigine and 1,2,3,6-hydrophthalimide: discovery, characterization, and construction of ternary phase diagrams. CrystEngComm 2020. [DOI: 10.1039/d0ce00178c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A 1 : 1 cocrystal of lamotrigine (LAM) with 1,2,3,6-tetrahydrophthalimide (HPHT) was first successfully synthesized. The ternary phase diagram of the cocrystal was constructed, and its stability and dissolution were determined.
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Affiliation(s)
- Wenjie Kuang
- Guangxi Key Laboratory for Polysaccharide Materials and their Modification Guangxi University for Nationalities
- Key Laboratory of Chemical and Biological Transformation Process of Guangxi Higher Education Institutes
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
| | - Shaochang Ji
- Guangxi Tobacco Monopoly Bureau
- Nanning 530006
- China
| | | | - Jinyan Zhang
- Guangxi Key Laboratory for Polysaccharide Materials and their Modification Guangxi University for Nationalities
- Key Laboratory of Chemical and Biological Transformation Process of Guangxi Higher Education Institutes
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
| | - Ping Lan
- Guangxi Key Laboratory for Polysaccharide Materials and their Modification Guangxi University for Nationalities
- Key Laboratory of Chemical and Biological Transformation Process of Guangxi Higher Education Institutes
- College of Chemistry and Chemical Engineering
- Guangxi University for Nationalities
- Nanning 530006
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144
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Xu K, Qian M, Leng J, Bai J, Li Q, Liu Z, Zhong S, Zhao S. Direct salinization of trelagliptin from solid forms by mechanochemistry and its mechanism of salt formation. CrystEngComm 2020. [DOI: 10.1039/d0ce00984a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct salinization of trelagliptin from solid forms by mechanochemistry was developed, which clarified that similar intermolecular interactions and any factor inducing proton transfer have a vital role in the formation of API salts.
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Affiliation(s)
- Kailin Xu
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
| | - Menglin Qian
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
| | - Jiewu Leng
- Guangdong Provincial Key Laboratory of Computer Integrated Manufacturing System
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangzhou
- Guangdong University of Technology
- China
| | - Jie Bai
- Analysis and Test Center
- Guangdong University of Technology
- Guangzhou
- China
| | - Qinglan Li
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
| | - Zihong Liu
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
| | - Shijuan Zhong
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
| | - Suqing Zhao
- School of Biomedical and Pharmaceutical Sciences
- Guangdong University of Technology
- Guangzhou
- China
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145
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Dissolution Advantage of Nitazoxanide Cocrystals in the Presence of Cellulosic Polymers. Pharmaceutics 2019; 12:pharmaceutics12010023. [PMID: 31881696 PMCID: PMC7022799 DOI: 10.3390/pharmaceutics12010023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 12/26/2022] Open
Abstract
The effect of hydroxypropyl methylcellulose (HPMC) and methylcellulose (Methocel® 60 HG) on the dissolution behavior of two cocrystals derived from nitazoxanide (NTZ), viz., nitazoxanide-glutaric acid (NTZ-GLU, 1:1) and nitazoxanide-succinic acid (NTZ-SUC, 2:1), was explored. Powder dissolution experiments under non-sink conditions showed similar dissolution profiles for the cocrystals and pure NTZ. However, pre-dissolved cellulosic polymer in the phosphate dissolution medium (pH 7.5) modified the dissolution profile of NTZ when starting from the cocrystals, achieving transient drug supersaturation. Subsequent dissolution studies under sink conditions of polymer-based pharmaceutical powder formulations with NTZ-SUC cocrystals gave a significant improvement of the apparent solubility of NTZ when compared with analogous formulations of pure NTZ and the physical mixture of NTZ and SUC. Scanning electron microscopy and powder X-ray diffraction analysis of samples recovered after the powder dissolution studies showed that the cocrystals undergo fast dissolution, drug supersaturation and precipitation both in the absence and presence of polymer, suggesting that the solubilization enhancement is due to polymer-induced delay of nucleation and crystal growth of the less soluble NTZ form. The study demonstrates that the incorporation of an appropriate excipient in adequate concentration can be a key factor for inducing and maintaining the solubilization of poorly soluble drugs starting from co-crystallized solid forms. In such a way, cocrystals can be suitable for the development of solid dosage forms with improved bioavailability and efficacy in the treatment of important parasitic and viral diseases, among others.
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146
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Brázda P, Palatinus L, Babor M. Electron diffraction determines molecular absolute configuration in a pharmaceutical nanocrystal. Science 2019; 364:667-669. [PMID: 31097664 DOI: 10.1126/science.aaw2560] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 04/03/2019] [Indexed: 01/19/2023]
Abstract
Determination of the absolute configuration of organic molecules is essential in drug development and the subsequent approval process. We show that this determination is possible through electron diffraction using nanocrystalline material. Ab initio structure determination by electron diffraction has so far been limited to compounds that maintain their crystallinity after a dose of one electron per square angstrom or more. We present a complete structure analysis of a pharmaceutical cocrystal of sofosbuvir and l-proline, which is about one order of magnitude less stable. Data collection on multiple positions of a crystal and an advanced-intensity extraction procedure enabled us to solve the structure ab initio. We further show that dynamical diffraction effects are strong enough to permit unambiguous determination of the absolute structure of material composed of light scatterers.
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Affiliation(s)
- Petr Brázda
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18200 Prague 8, Czech Republic.
| | - Lukáš Palatinus
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18200 Prague 8, Czech Republic
| | - Martin Babor
- University of Chemistry and Technology, Technická 3, 16628 Prague 6, Czech Republic.,Zentiva, U Kabelovny 130, 10237 Prague 10, Czech Republic
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147
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Haneef J, Arora P, Chadha R. Implication of Coformer Structural Diversity on Cocrystallization Outcomes of Telmisartan with Improved Biopharmaceutical Performance. AAPS PharmSciTech 2019; 21:10. [PMID: 31802267 DOI: 10.1208/s12249-019-1559-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 11/06/2019] [Indexed: 12/26/2022] Open
Abstract
Crystal engineering approach was utilized for the development of different multicomponent solid forms of telmisartan (TEL) to improve its oral bioavailability. In this context, two cocrystals, gentisic acid (GA) and maleic acid (MA), while two eutectic mixtures, para-aminobenzoic acid (PABA) and adipic acid (AA), were successfully prepared and characterized by different analytical tools. Both the cocrystals exhibited characteristic heterosynthons, viz. OHacid⋯Narom and OHacid⋯O, to propagate new network. Structural features of coformers has been correlated with the outcomes of cocrystallization approach. Coformers having auxiliary functionality in addition to complementary functional groups have high propensity to generate cocrystals. However, multicomponent where auxiliary functionality is lacking, such combinations, is shown to form eutectic mixtures owing to strong homomeric interaction. Besides, the developed cocrystals and eutectic mixtures showed higher aqueous solubility (3-5.5-fold) and intrinsic dissolution rate (1-2.6-fold) over pure TEL. In vivo studies also revealed significant improvement in relative bioavailability (2-2.6-fold). The study also shed light on the implications of eutectic mixtures in mitigating the solubility issues of drugs which are often considered negative results of cocrystallization strategy.
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148
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Sun W, Zuo L, Zhao T, Zhu Z, Shan G. Five solvates of a multicomponent pharmaceutical salt formed by berberine and diclofenac. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2019; 75:1644-1651. [PMID: 31802754 DOI: 10.1107/s2053229619015432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 11/14/2019] [Indexed: 11/10/2022]
Abstract
A multicomponent pharmaceutical salt formed by the isoquinoline alkaloid berberine (5,6-dihydro-9,10-dimethoxybenzo[g]-1,3-benzodioxolo[5,6-a]quinolizinium, BBR) and the nonsteroidal anti-inflammatory drug diclofenac {2-[2-(2,6-dichloroanilino)phenyl]acetic acid, DIC} was discovered. Five solvates of the pharmaceutical salt form were obtained by solid-form screening. These five multicomponent solvates are the dihydrate (BBR-DIC·2H2O or C20H18NO4+·C14H10Cl2NO2-·2H2O), the dichloromethane hemisolvate dihydrate (BBR-DIC·0.5CH2Cl2·2H2O or C20H18NO4+·C14H10Cl2NO2-·0.5CH2Cl2·2H2O), the ethanol monosolvate (BBR-DIC·C2H5OH or C20H18NO4+·C14H10Cl2NO2-·C2H5OH), the methanol monosolvate (BBR-DIC·CH3OH or C20H18NO4+·C14H10Cl2NO2-·CH3OH) and the methanol disolvate (BBR-DIC·2CH3OH or C20H18NO4+·C14H10Cl2NO2-·2CH3OH), and their crystal structures were determined. All five solvates of BBR-DIC (1:1 molar ratio) were crystallized from different organic solvents. Solvent molecules in a pharmaceutical salt are essential components for the formation of crystalline structures and stabilization of the crystal lattices. These solvates have strong intermolecular O...H hydrogen bonds between the DIC anions and solvent molecules. The intermolecular hydrogen-bond interactions were visualized by two-dimensional fingerprint plots. All the multicomponent solvates contained intramolecular N-H...O hydrogen bonds. Various π-π interactions dominate the packing structures of the solvates.
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Affiliation(s)
- Wei Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Limin Zuo
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ting Zhao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Zhiling Zhu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Guangzhi Shan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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149
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Lee MJ, Aitipamula S, Choi GJ, Chow PS. Agomelatine-hydroquinone (1:1) cocrystal: novel polymorphs and their thermodynamic relationship. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:969-977. [PMID: 32830676 DOI: 10.1107/s2052520619011739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 08/25/2019] [Indexed: 06/11/2023]
Abstract
Polymorphism of active pharmaceutical ingredients (APIs) is of significance in the pharmaceutical industry because it can affect the quality, efficacy and safety of the final drug product. In this regard, polymorphic behavior of cocrystals is no exception because it can influence the development of cocrystals as potential drug formulations. The current contribution aims to introduce two novel polymorphs [forms (III) and (IV)] of agomelatine-hydroquinone (AGO-HYQ) cocrystal and to describe the thermodynamic relationship between the cocrystal polymorphs. All polymorphs were characterized using powder X-ray diffraction, differential scanning calorimetry, hot-stage microscopy and solubility measurements. In addition, the crystal structure of form (II), which has been previously solved from powder diffraction data [Prohens et al. (2016), Cryst. Growth Des. 16, 1063-1070] and form (III) were determined from the single-crystal X-ray diffraction data. Thermal analysis revealed that AGO-HYQ cocrystal form (III) exhibits a higher melting point and a lower heat of fusion than those of form (II). According to the heat of fusion rule, the polymorphs are enantiotropically related, with form (III) being stable at higher temperatures. Our results also show that the novel form (IV) is the most stable form at ambient conditions and it transforms into form (II) on heating, and therefore, the two polymorphs are enantiotropically related. Furthermore, solubility and van't Hoff plot results suggest that the transition points are approximately 339 K for the pair form (IV)-(II) and 352 K for the pair form (II)-(III).
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Affiliation(s)
- Min Jeong Lee
- Formulated Products, Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Srinivasulu Aitipamula
- Formulated Products, Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Guang J Choi
- Department of Pharmaceutical Engineering, Soonchunhyang University, Asan, Chungnam 31538, South Korea
| | - Pui Shan Chow
- Formulated Products, Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, 627833, Singapore
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Bellas MK, Matzger AJ. Achieving Balanced Energetics through Cocrystallization. Angew Chem Int Ed Engl 2019; 58:17185-17188. [DOI: 10.1002/anie.201908709] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/20/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Michael K. Bellas
- Department of Chemistry University of Michigan 930 North University Avenue Ann Arbor MI 48109-1055 USA
| | - Adam J. Matzger
- Department of Chemistry University of Michigan 930 North University Avenue Ann Arbor MI 48109-1055 USA
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