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D'Abbrunzo I, Birolo R, Chierotti MR, Bučar DK, Voinovich D, Perissutti B, Hasa D. Enantiospecific crystallisation behaviour of malic acid in mechanochemical reactions with vinpocetine. Eur J Pharm Biopharm 2024; 201:114344. [PMID: 38815873 DOI: 10.1016/j.ejpb.2024.114344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/16/2024] [Accepted: 05/26/2024] [Indexed: 06/01/2024]
Abstract
We report an intriguing example of enantioselectivity in the formation of new multicomponent crystalline solid containing vinpocetine and malic acid. Several experimental data sets confirmed that the multicomponent system presents a clear enantiospecific crystallisation behaviour both in the solid-state and in solution: only the system consisting of vinpocetine and L-malic acid produces a free-flowing solid consisting of a new crystalline form, while the experiments with D-malic acid produced an amorphous and often deliquescent material. The new vinpocetine-L-malic system crystallizes in the monoclinic space group of P21 and in a 1:1 molar ratio, where the two molecules are linked through intermolecular hydrogen bonds in the asymmetric unit. The vinpocetine-DL-malic system was partially crystalline (with also traces of unreacted vinpocetine) with diffraction peaks corresponding to those of vinpocetine-L-malic acid. Solid-state NMR experiments revealed strong ionic interactions in all the three systems. However, while vinpocetine-L-malic acid system was a pure and crystalline phase, the other two systems persistently showed the presence of unreacted vinpocetine. This resulted in a significant worsening of the dissolution profile with respect to the pure vinpocetine-L-malic crystalline salt, whose dissolution kinetics appeared superior.
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Affiliation(s)
- Ilenia D'Abbrunzo
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Rebecca Birolo
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Dejan-Krešimir Bučar
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Dritan Hasa
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
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2
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Kanagavel M, Sparjan Samuvel RM, Ramalingam V, Nechipadappu SK. Repurposing of Antifungal Drug Flucytosine/Flucytosine Cocrystals for Anticancer Activity against Prostate Cancer Targeting Apoptosis and Inflammatory Signaling Pathways. Mol Pharm 2024; 21:2577-2589. [PMID: 38647021 DOI: 10.1021/acs.molpharmaceut.4c00156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
This study aimed to repurpose the antifungal drug flucytosine (FCN) for anticancer activity together with cocrystals of nutraceutical coformers sinapic acid (SNP) and syringic acid (SYA). The cocrystal screening experiments with SNP resulted in three cocrystal hydrate forms in which two are polymorphs, namely, FCN-SNP F-I and FCN-SNP F-II, and the third one with different stoichiometry in the asymmetric unit (1:2:1 ratio of FCN:SNP:H2O, FCN-SNP F-III). Cocrystallization with SYA resulted in two hydrated cocrystal polymorphs, namely, FCN-SYA F-I and FCN-SYA F-II. All the cocrystal polymorphs were obtained concomitantly during the slow evaporation method, and one of the polymorphs of each system was produced in bulk by the slurry method. The interaction energy and lattice energies of all cocrystal polymorphs were established using solid-state DFT calculations, and the outcomes correlated with the experimental results. Further, the in vitro cytotoxic activity of the cocrystals was determined against DU145 prostate cancer and the results showed that the FCN-based cocrystals (FCN-SNP F-III and FCN-SYA F-I) have excellent growth inhibitory activity at lower concentrations compared with parent FCN molecules. The prepared cocrystals induce apoptosis by generating oxidative stress and causing nuclear damage in prostate cancer cells. The Western blot analysis also depicted that the cocrystals downregulate the inflammatory markers such as NLRP3 and caspase-1 and upregulate the intrinsic apoptosis signaling pathway marker proteins, such as Bax, p53, and caspase-3. These findings suggest that the antifungal drug FCN can be repurposed for anticancer activity.
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Affiliation(s)
- Manimurugan Kanagavel
- Centre for X-ray Crystallography, Department of Analytical & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rajan Marystella Sparjan Samuvel
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vaikundamoorthy Ramalingam
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sunil Kumar Nechipadappu
- Centre for X-ray Crystallography, Department of Analytical & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Kavanagh ON. An analysis of multidrug multicomponent crystals as tools for drug development. J Control Release 2024; 369:1-11. [PMID: 38513727 DOI: 10.1016/j.jconrel.2024.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
In a typical tablet or capsule formulation, the active drug is often present as a crystalline solid. This solid emerges from the relationships between the individual atoms within the crystal, which confer a distinct set of physical properties. Then, it follows that if we modify the packing arrangement of the individual molecules within these crystals, we can modulate their properties. This can be achieved by crystal engineering. Crystal engineering has also seen teams arrange multiple drug molecules within the same crystal, resulting in dramatic improvements to drug properties in the lab. The success of drugs like SEGLENTIS® and Entresto® have revitalised interest in these forms, but controversy surrounding their translation has prompted this reconsideration of their clinical utility. I reflect on the current academic, clinical, and commercial interest in multidrug multicomponent crystals, drawing parallels with developments pre-Bragg, contributing to a nuanced understanding of the potential and limitations of crystal engineering in pharmaceutical applications.
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Affiliation(s)
- Oisín N Kavanagh
- School of Pharmacy, Newcastle University, Newcastle upon Tyne, UK.
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4
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Li J, Wang X, Yu D, Zhoujin Y, Wang K. Molecular complexes of drug combinations: A review of cocrystals, salts, coamorphous systems and amorphous solid dispersions. Int J Pharm 2023; 648:123555. [PMID: 37890646 DOI: 10.1016/j.ijpharm.2023.123555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 10/29/2023]
Abstract
As the advancements in the medical technology and healthcare develop through the years, combinational therapy has evolved to be an important treatment modality in many disease settings, including cancer, cardiovascular disease and infectious diseases. In an effort to alleviate "pill burden" and improve patient compliance, fixed dose combinations (FDCs) have been developed to be used as effective therapeutics. Among all FDCs, the category of drug-drug molecular complexes has been proven an efficient methodology in designing and treating diseases, with many drugs being approved. Among all drug-drug molecular complexes, drug-drug cocrystals, salts, coamorphous systems and solid dispersions have been successfully developed and many have been approved by the FDA. In this review, we dwell deeply into the molecular mechanisms behind the different types of drug-drug molecular complexes, including the key functional groups involved in the intermolecular interactions, the applications of each category of molecular complexes, as well as the advantages and challenges thereof. This comprehensive review provides useful insights into the practical design and manufacture of drug-drug molecular complexes and points out the future direction for the development of new advantageous combinational therapies that benefit more patients.
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Affiliation(s)
- Jinghan Li
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, United States
| | - Xiyan Wang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, PR China
| | - Dongyue Yu
- Pharmaceutical Candidate Optimization, Bristol Myers Squibb, Route 206 and Province Line Road, Princeton, NJ 08540, United States
| | - Yunping Zhoujin
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, United States
| | - Kunlin Wang
- BeBetter Med Inc., Guangzhou, 510663, PR China; College of Pharmacy, Jinan University, Guangzhou, 510006, PR China.
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5
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Roy P, Chakraborty S, Pandey N, Kumari N, Chougule S, Chatterjee A, Chatterjee K, Mandal P, Gorain B, Dhotre AV, Bansal AK, Ghosh A. Study on Sulfamethoxazole-Piperazine Salt: A Mechanistic Insight into Simultaneous Improvement of Physicochemical Properties. Mol Pharm 2023; 20:5226-5239. [PMID: 37677085 DOI: 10.1021/acs.molpharmaceut.3c00646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Multidrug salts represent more than one drug in a crystal lattice and thus could be used to deliver multiple drugs in a single dose. It showcases unique physicochemical properties in comparison to individual components, which could lead to improved efficacy and therapeutic synergism. This study presents the preparation and scale-up of sulfamethoxazole-piperazine salt, which has been thoroughly characterized by X-ray diffraction and thermal and spectroscopic analyses. A detailed mechanistic study investigates the impact of piperazine on the microenvironmental pH of the salt and its effect on the speciation profile, solubility, dissolution, and diffusion profile. Also, the improvement in the physicochemical properties of sulfamethoxazole due to the formation of salt was explored with lattice energy contributions. A greater ionization of sulfamethoxazole (due to pH changes contributed by piperazine) and lesser lattice energy of sulfamethoxazole-piperazine contributed to improved solubility, dissolution, and permeability. Moreover, the prepared salt addresses the stability issues of piperazine and exhibits good stability behavior under accelerated stability conditions. Due to the improvement of physicochemical properties, the sulfamethoxazole-piperazine salt demonstrates better pharmacokinetic parameters in comparison to sulfamethoxazole and provides a strong suggestion for the reduction of dose. The following study suggests that multidrug salts can concurrently enhance the physicochemical properties of drugs and present themselves as improved fixed-dose combinations.
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Affiliation(s)
- Parag Roy
- Solid State Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Soumalya Chakraborty
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S Nagar, Mohali 160062, Punjab, India
| | - Noopur Pandey
- Solid State Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Nimmy Kumari
- Solid State Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Sourav Chougule
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S Nagar, Mohali 160062, Punjab, India
| | - Amrita Chatterjee
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Kaberi Chatterjee
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Pallab Mandal
- Bioequivalence Study Centre, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India
| | - Bapi Gorain
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
| | - Ananta V Dhotre
- College of Dairy Technology, Warud, Maharashtra Animal and Fishery Sciences University, Pusad, Nagpur 445204, Maharashtra, India
| | - Arvind Kumar Bansal
- Solid State Pharmaceutics Lab, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector-67, S.A.S Nagar, Mohali 160062, Punjab, India
| | - Animesh Ghosh
- Solid State Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi 835215, Jharkhand, India
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6
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D'Abbrunzo I, Bianco E, Gigli L, Demitri N, Birolo R, Chierotti MR, Škorić I, Keiser J, Häberli C, Voinovich D, Hasa D, Perissutti B. Praziquantel meets Niclosamide: A dual-drug Antiparasitic Cocrystal. Int J Pharm 2023; 644:123315. [PMID: 37579827 DOI: 10.1016/j.ijpharm.2023.123315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/06/2023] [Accepted: 08/11/2023] [Indexed: 08/16/2023]
Abstract
In this paper we report a successful example of combining drugs through cocrystallization. Specifically, the novel solid is formed by two anthelminthic drugs, namely praziquantel (PZQ) and niclosamide (NCM) in a 1:3 molar ratio, and it can be obtained through a sustainable one-step mechanochemical process in the presence of micromolar amounts of methanol. The novel solid phase crystallizes in the monoclinic space group of P21/c, showing one PZQ and three NCM molecules linked through homo- and heteromolecular hydrogen bonds in the asymmetric unit, as also attested by SSNMR and FT-IR results. A plate-like habitus is evident from scanning electron microscopy analysis with a melting point of 202.89 °C, which is intermediate to those of the parent compounds. The supramolecular interactions confer favorable properties to the cocrystal, preventing NCM transformation into the insoluble monohydrate both in the solid state and in aqueous solution. Remarkably, the PZQ - NCM cocrystal exhibits higher anthelmintic activity against in vitro S. mansoni models than corresponding physical mixture of the APIs. Finally, due to in vitro promising results, in vivo preliminary tests on mice were also performed through the administration of minicapsules size M.
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Affiliation(s)
- Ilenia D'Abbrunzo
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Emma Bianco
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Lara Gigli
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, Basovizza-Trieste, Italy.
| | - Nicola Demitri
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, Basovizza-Trieste, Italy.
| | - Rebecca Birolo
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy.
| | - Irena Škorić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Jennifer Keiser
- Department of Medical Parasitology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; University of Basel, Basel 4000, Switzerland
| | - Cécile Häberli
- Department of Medical Parasitology, Swiss Tropical and Public Health Institute, 4123 Allschwil, Switzerland; University of Basel, Basel 4000, Switzerland
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Dritan Hasa
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
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7
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Silva JC, Rosado MTS, Maria TMR, Pereira Silva PS, Silva MR, Eusébio MES. Introduction to Pharmaceutical Co-amorphous Systems Using a Green Co-milling Technique. JOURNAL OF CHEMICAL EDUCATION 2023; 100:1627-1632. [PMID: 37067885 PMCID: PMC10100544 DOI: 10.1021/acs.jchemed.3c00036] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/28/2023] [Indexed: 06/19/2023]
Abstract
The concept of co-amorphous systems is introduced in an integrated laboratory experiment, designed for advanced chemistry students, using solvent-free, environmentally friendly mechanochemistry. The dual-drug naproxen-cimetidine co-amorphous system (NPX-CIM) is investigated as an example of the emergent field of medicinal mechanochemistry. Students are trained in solid-state characterization techniques including X-ray powder diffraction, Fourier-transform infrared spectroscopy, and thermal analysis by differential scanning calorimetry. This lab experiment also provides an opportunity to discuss the relevance of different solid forms of pharmaceutics, emphasizing particular properties of disordered materials. This experiment can easily fit the curriculum of any Chemistry or Pharmacy master level degree in courses dealing with instrumental analysis, solid state chemistry, or green chemistry, for classes of 6 to 18 students, in a 5-h lab session. Suggestions to adapt it to the use of a single characterization technique are provided.
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Affiliation(s)
- Joana
F. C. Silva
- CQC-IMS,
Dep. de Química, Universidade de
Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Mário T. S. Rosado
- CQC-IMS,
Dep. de Química, Universidade de
Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | - Teresa M. R. Maria
- CQC-IMS,
Dep. de Química, Universidade de
Coimbra, Rua Larga, Coimbra 3004-535, Portugal
| | | | - Manuela Ramos Silva
- CFisUC,
Dep. de Física, Universidade de Coimbra, Rua Larga, Coimbra 3000-370, Portugal
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8
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Madanayake SN, Manipura A, Thakuria R, Adassooriya NM. Opportunities and Challenges in Mechanochemical Cocrystallization toward Scaled-Up Pharmaceutical Manufacturing. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Sithmi Nimashi Madanayake
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Aruna Manipura
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati 781014, Assam, India
| | - Nadeesh M. Adassooriya
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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9
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da Costa NF, Santos IA, Fernandes AI, Pinto JF. Sulfonic Acid Derivatives in the Production of Stable Co-Amorphous Systems for Solubility Enhancement. J Pharm Sci 2022; 111:3327-3339. [PMID: 36007560 DOI: 10.1016/j.xphs.2022.08.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 01/05/2023]
Abstract
Co-amorphization is a promising approach to stabilize drugs in the amorphous form. Olanzapine, a poorly water-soluble drug was used in this study. Sulfonic acids (saccharin, cyclamic acid and acesulfame), free and in salt forms, were used as co-formers and compared with carboxylic acids commonly used in the preparation of co-amorphous systems. Several manufacturing techniques were tested, and the co-amorphous systems characterized by differential scanning calorimetry, X-ray powder diffraction, thermogravimetry and Fourier-transform infrared spectroscopy. Free sulfonic acids produced co-amorphous systems with the drug, unlike their salts. Spectroscopy data suggests the formation of salts between olanzapine and the sulfonic acids, used as co-formers. The co-amorphous system produced with saccharin by solvent evaporation, showed the most notable solubility enhancement (145 times). The stability of amorphous and co-amorphous olanzapine systems was assessed upon exposure to stress conditions during storage. Amorphized olanzapine readily reconverted back to the crystalline form while sulfonic acids:olanzapine co-amorphous were stable for up to 24 weeks in low/medium humidity conditions (11-75% RH). Results highlight the potential advantages offered by sulfonic acids as co-formers to produce stable and more soluble co-amorphous olanzapine.
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Affiliation(s)
- Nuno F da Costa
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Inês A Santos
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; CiiEM - Interdisciplinary Research Center Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
| | - Ana I Fernandes
- CiiEM - Interdisciplinary Research Center Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
| | - João F Pinto
- iMed.ULisboa - Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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10
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Abrahams BF, Commons CJ, Hudson TA, Sanchez Arlt R, Ahl R, Carajias ED, Chan JWK, Guo Z, Hill RE, McGinty A, Peters NL, Poon JYP, Qu J, Qu J, Rochette EE, Walkear C, Wang H, Wu H, Xu C, Zhang J. Complexes of 2,4,6-trihydroxybenzoic acid: effects of intramolecular hydrogen bonding on ligand geometry and metal binding modes. Acta Crystallogr C Struct Chem 2022; 78:653-670. [PMID: 36331890 PMCID: PMC9635592 DOI: 10.1107/s2053229622009901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/10/2022] [Indexed: 11/10/2022] Open
Abstract
This article describes a series of more than 20 new compounds formed by the combination of 2,4,6-trihydroxybenzoic acid (H4thba) with metal ions in the presence of a base, with structures that include discrete molecular units, chains, and two- and three-dimensional networks. As a result of the presence of two ortho-hydroxy groups, H4thba is a relatively strong acid (pKa1 = 1.68). The carboxylate group in H3thba- is therefore considerably less basic than most carboxylates with intramolecular hydrogen bonds, conferring a rigid planar geometry upon the anion. These characteristics of H3thba- significantly impact upon the way it interacts with metal ions. In s-block metal compounds, where the interaction of the metal centres with the carboxylate O atoms is essentially ionic, the anion bonds to up to three metal centres via a variety of binding modes. In cases where the metal ion is able to form directional coordinate bonds, however, the carboxylate group tends to bond in a monodentate mode, interacting with just one metal centre in the syn mode. A dominant influence on the structures of the complexes seems to be the face-to-face stacking of the aromatic rings, which creates networks containing layers of metal-oxygen polyhedra that participate in hydrogen bonding. This investigation was undertaken, in part, by a group of secondary school students as an educational exercise designed to introduce school students to the technique of single-crystal X-ray diffraction and enhance their understanding of primary and secondary bonding.
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Affiliation(s)
- Brendan F. Abrahams
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | | | - Timothy A. Hudson
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Robin Sanchez Arlt
- School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Rion Ahl
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Eirene D. Carajias
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
| | - Jason W. K. Chan
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Zhihao Guo
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Renee E. Hill
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Alice McGinty
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
| | - Neale L. Peters
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | | | - Jingqi Qu
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Jinglin Qu
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Emily E. Rochette
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
- Melbourne Graduate School of Education, University of Melbourne, Parkville, VIC 3010, Australia
| | - Catherine Walkear
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
| | - Hanlin Wang
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
| | - Holly Wu
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
| | - Chang Xu
- Melbourne Girls’ College, Yarra Boulevard, Richmond, VIC 3121, Australia
| | - Jingyuan Zhang
- Scotch College, 1 Morrison Street, Hawthorn, VIC 3122, Australia
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11
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da Costa NF, Daniels R, Fernandes AI, Pinto JF. Downstream Processing of Amorphous and Co-Amorphous Olanzapine Powder Blends. Pharmaceutics 2022; 14:pharmaceutics14081535. [PMID: 35893791 PMCID: PMC9332588 DOI: 10.3390/pharmaceutics14081535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 01/03/2023] Open
Abstract
The work evaluates the stability of amorphous and co-amorphous olanzapine (OLZ) in tablets manufactured by direct compression. The flowability and the compressibility of amorphous and co-amorphous OLZ with saccharin (SAC) and the properties of the tablets obtained were measured and compared to those of tablets made with crystalline OLZ. The flowability of the amorphous and mostly of the co-amorphous OLZ powders decreased in comparison with the crystalline OLZ due to the higher cohesiveness of the former materials. The stability of the amorphous and co-amorphous OLZ prior to and after tableting was monitored by XRPD, FTIR, and NIR spectroscopies. Tablets presented long-lasting amorphous OLZ with enhanced water solubility, but the release rate of the drug decreased in comparison with tablets containing crystalline OLZ. In physical mixtures made of crystalline OLZ and SAC, an extent of amorphization of approximately 20% was accomplished through the application of compaction pressures and dwell times of 155 MPa and 5 min, respectively. The work highlighted the stability of amorphous and co-amorphous OLZ during tableting and the positive effect of compaction pressure on the formation of co-amorphous OLZ, providing an expedited amorphization technique, given that the process development-associated hurdles were overcome.
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Affiliation(s)
- Nuno F. da Costa
- iMed.ULisboa—Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (N.F.d.C.); (J.F.P.)
| | - Rolf Daniels
- Department of Pharmaceutical Technology, Eberhard Karls University, Auf der Morgenstelle 8, D-72076 Tuebingen, Germany;
| | - Ana I. Fernandes
- CiiEM—Interdisciplinary Research Center Egas Moniz, Instituto Universitário Egas Moniz, Monte de Caparica, 2829-511 Caparica, Portugal
- Correspondence: ; Tel.: +351-212946823
| | - João F. Pinto
- iMed.ULisboa—Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal; (N.F.d.C.); (J.F.P.)
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12
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Holmes ST, Hook JM, Schurko RW. Nutraceuticals in Bulk and Dosage Forms: Analysis by 35Cl and 14N Solid-State NMR and DFT Calculations. Mol Pharm 2021; 19:440-455. [PMID: 34792373 DOI: 10.1021/acs.molpharmaceut.1c00708] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study uses 35Cl and 14N solid-state NMR (SSNMR) spectroscopy and dispersion-corrected plane-wave density functional theory (DFT) calculations for the structural characterization of chloride salts of nutraceuticals in their bulk and dosage forms. For eight nutraceuticals, we measure the 35Cl EFG tensor parameters of the chloride ions and use plane-wave DFT calculations to elucidate relationships between NMR parameters and molecular-level structure, which provide rapid NMR crystallographic assessments of structural features. We employ both 35Cl direct excitation and 1H→35Cl cross-polarization methods to characterize a dosage form containing α-d-glucosamine HCl, observe possible impurity and/or adulterant phases, and quantify the weight percent of the active ingredient. To complement this, we also investigate 14N SSNMR spectroscopy and DFT calculations to characterize nitrogen atoms in the nutraceuticals. This includes a discussion of targeted acquisition experimental protocols (i.e., acquiring a select region of the overall pattern that features key discontinuities) that allow ultrawideline spectra to be acquired rapidly, even for unreceptive samples (i.e., those with long values of T1(14N), short values of T2eff(14N), or very broad patterns). It is hoped that these experimental and computational protocols will be useful for the characterization of various solid forms of nutraceuticals (i.e., salts, polymorphs, hydrates, solvates, cocrystals, amorphous solid dispersions, etc.), help detect impurity and counterfeit solid phases in dosage forms, and serve as a foundation for future NMR crystallographic studies of nutraceutical solid forms, including studies using ab initio crystal structure prediction algorithms.
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Affiliation(s)
- Sean T Holmes
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - James M Hook
- NMR Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia.,School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Robert W Schurko
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
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13
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Gong W, Mondal PK, Ahmadi S, Wu Y, Rohani S. Cocrystals, Salts, and Salt-Solvates of olanzapine; selection of coformers and improved solubility. Int J Pharm 2021; 608:121063. [PMID: 34481007 DOI: 10.1016/j.ijpharm.2021.121063] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/23/2021] [Accepted: 08/28/2021] [Indexed: 01/21/2023]
Abstract
Pharmaceutical cocrystals and salts are extensively researched in recent years due to their ability to tune the physicochemical properties of active pharmaceutical ingredients (APIs). A model API, olanzapine, an atypical antipsychotic drug classified as Biopharmaceutical Classification System class II, is used in this study. Cocrystals and salts of olanzapine are discovered using solvent drop grinding and ball milling. Appropriate coformers were selected based on a combination of hydrogen-bond propensity (HBP) and hydrogen-bond coordination (HBC) calculations. Eight new multicomponent phases of olanzapine, including one cocrystal hydrate with phenol; four anhydrous salts with salicylic acid, terephthalic acid, anthranilic acid, 3-hydroxybenzoic acid, and 2-aminoterephthalic acid; one salt dihydrate with terephthalic acid; and one salt solvate with 3-hydroxybenzoic acid and acetonitrile, have been discovered and characterized by PXRD and DSC. One reported cocrystal (olanzapine-resorcinol) has also been considered for the dissolution test. All these newly formed solid phases followed the "ΔpKa rule of 3". The crystal structures of cocrystal/salts were determined by single-crystal X-ray (sc-XRD) diffraction. With the collected single-crystal data, the crystal packings were found to be primarily stabilized via strong hydrogen bonds between carboxyl, phenolic hydroxyl of co-formers/salt-formers with the piperazine and diazepine nitrogen of olanzapine, which confirmed the predicted result from the HBP and HBC calculations. HPLC coupled with UV-vis detector was used in the solubility and dissolution test instead of UV-vis spectroscopy, to avoid the peak overlap between olanzapine and co-formers/salt-formers. A threefold increase in the solubility was observed in olanzapinium 3-hydroxybenzoate and olanzapinium anthranilate, and an almost fivefold increase in solubility of olanzapinium 2-aminoterephthalate.
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Affiliation(s)
- Weizhong Gong
- Department of Chemical and Biochemical Engineering Western University, London, ON N6A 5B9, Canada
| | - Pradip Kumar Mondal
- Department of Chemical and Biochemical Engineering Western University, London, ON N6A 5B9, Canada
| | - Soroush Ahmadi
- Department of Chemical and Biochemical Engineering Western University, London, ON N6A 5B9, Canada
| | - Yuanyi Wu
- Department of Chemical and Biochemical Engineering Western University, London, ON N6A 5B9, Canada
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering Western University, London, ON N6A 5B9, Canada.
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14
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Sanda Bawa A, Meunier-Prest R, Rousselin Y, Couvercelle JP, Stern C, Malézieux B, Bouvet M. Series of charge transfer complexes obtained as crystals in a confined environment. CrystEngComm 2021. [DOI: 10.1039/d1ce00929j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of charge transfer complexes (CTCs) were successfully formed by solvent free processing techniques, using the 1,2,4,5-tetracyano benzene (TCNB) as πA molecule and a series of p-dihydroquinones (H2Qs) as πD counterparts.
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Affiliation(s)
- Ali Sanda Bawa
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
- Département de chimie, Université d'Agadez, Niger
| | - Rita Meunier-Prest
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
| | - Jean-Pierre Couvercelle
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
| | - Christine Stern
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
| | - Bernard Malézieux
- Institut Parisien de Chimie Moléculaire (IPCM), CNRS - UMR 8232, Sorbonne-Université, 4 place Jussieu, Case 229, F-75252 cedex 05 Paris, France
| | - Marcel Bouvet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université Bourgogne Franche-Comté, 9 av. Alain Savary, 21078 cedex Dijon, France
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15
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Das D, Bhutia ZT, Panjikar PC, Chatterjee A, Banerjee M. A simple and efficient route to 2‐arylimidazo[1,2‐a]pyridines and zolimidine using automated grindstone chemistry. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4106] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Dharmendra Das
- Department of Chemistry BITS Pilani, K. K. Birla Goa Campus Zuarinagar Goa India
| | - Zigmee T. Bhutia
- Department of Chemistry BITS Pilani, K. K. Birla Goa Campus Zuarinagar Goa India
| | - Padmini C. Panjikar
- Department of Chemistry BITS Pilani, K. K. Birla Goa Campus Zuarinagar Goa India
- Pravatibai Chowgule College of Arts and Science (Autonomus) Margao Goa India
| | - Amrita Chatterjee
- Department of Chemistry BITS Pilani, K. K. Birla Goa Campus Zuarinagar Goa India
| | - Mainak Banerjee
- Department of Chemistry BITS Pilani, K. K. Birla Goa Campus Zuarinagar Goa India
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16
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Natchimuthu V, Sharmila N, Ravi S. Crystal structure and Hirshfeld surface analysis of 1-methyl-4-(2-methyl-10 H-benzo[ b]thieno[2,3- e][1,4]diazepin-4-yl)piperazin-1-ium 2,5-di-hydroxy-benzoate propan-2-ol monosolvate. Acta Crystallogr E Crystallogr Commun 2020; 76:1168-1172. [PMID: 32695474 PMCID: PMC7336797 DOI: 10.1107/s205698902000818x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/19/2020] [Indexed: 11/21/2022]
Abstract
The asymmetric unit of the title salt, C17H21N4S+·C7H5O4 -·C3H7OH, consists of an olanzapinium cation, an independent 2,5-di-hydroxy-benzoate anion and a solvent isopropyl alcohol mol-ecule. The central seven-membered heterocycle is in a boat conformation, while the piperazine ring displays a distorted chair conformation. The dihedral angle between the benzene and thiene rings flanking the diazepine ring is 52.58 (19)°. In the crystal, the anions and cations are connected by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional network.
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Affiliation(s)
- V. Natchimuthu
- Department of Physics, M.Kumarasamy College of Engineering, Karur 639113, Tamil Nadu, India
| | - N. Sharmila
- Department of Physics, Shrimati Indira Gandhi College, Tiruchirappalli 620 002, Tamilnadu, India
| | - S. Ravi
- Postgraduate and Research Department of Physics, National College (Autonomous), Tiruchirappalli 620 001, Tamilnadu, India
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17
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Surampudi AVSD, Rajendrakumar S, Nanubolu JB, Balasubramanian S, Surov AO, Voronin AP, Perlovich GL. Influence of crystal packing on the thermal properties of cocrystals and cocrystal solvates of olanzapine: insights from computations. CrystEngComm 2020. [DOI: 10.1039/d0ce00914h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A multicomponent supramolecular host with adaptive guest accommodation abilities is observed in the cocrystal solvates of the olanzapine–hydroquinone system.
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Affiliation(s)
- Anuja Venkata Sai Durga Surampudi
- Centre for X-ray Crystallography
- Department of Analytical & Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Satyasree Rajendrakumar
- Centre for X-ray Crystallography
- Department of Analytical & Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography
- Department of Analytical & Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Sridhar Balasubramanian
- Centre for X-ray Crystallography
- Department of Analytical & Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - 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
| | - German L. Perlovich
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- 153045 Ivanovo
- Russia
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18
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Roy P, Ghosh A. Mechanochemical cocrystallization to improve the physicochemical properties of chlorzoxazone. CrystEngComm 2020. [DOI: 10.1039/d0ce00635a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cocrystals of chlorzoxazone prepared by mechanochemical cocrystallization with picolinic acid to improve the physicochemical properties.
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Affiliation(s)
- Parag Roy
- Department of Pharmaceutical Sciences & Technology
- Birla Institute of Technology
- Ranchi
- India
| | - Animesh Ghosh
- Department of Pharmaceutical Sciences & Technology
- Birla Institute of Technology
- Ranchi
- India
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19
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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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