1
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Shen YL, Bu FZ, Yu YM, Meng SS, Wu ZY, Yan CW, Li YT. The molecular salt of pyrimethamine and fenbufen for enhancing dissolubility via an assisted efficacy-increasing approach of dual-drug salt formation: A combined study including theory analysis and experiment validation. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Singh M, Barua H, Jyothi VGSS, Dhondale MR, Nambiar AG, Agrawal AK, Kumar P, Shastri NR, Kumar D. Cocrystals by Design: A Rational Coformer Selection Approach for Tackling the API Problems. Pharmaceutics 2023; 15:1161. [PMID: 37111646 PMCID: PMC10140925 DOI: 10.3390/pharmaceutics15041161] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/25/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
Active pharmaceutical ingredients (API) with unfavorable physicochemical properties and stability present a significant challenge during their processing into final dosage forms. Cocrystallization of such APIs with suitable coformers is an efficient approach to mitigate the solubility and stability concerns. A considerable number of cocrystal-based products are currently being marketed and show an upward trend. However, to improve the API properties by cocrystallization, coformer selection plays a paramount role. Selection of suitable coformers not only improves the drug's physicochemical properties but also improves the therapeutic effectiveness and reduces side effects. Numerous coformers have been used till date to prepare pharmaceutically acceptable cocrystals. The carboxylic acid-based coformers, such as fumaric acid, oxalic acid, succinic acid, and citric acid, are the most commonly used coformers in the currently marketed cocrystal-based products. Carboxylic acid-based coformers are capable of forming the hydrogen bond and contain smaller carbon chain with the APIs. This review summarizes the role of coformers in improving the physicochemical and pharmaceutical properties of APIs, and deeply explains the utility of afore-mentioned coformers in API cocrystal formation. The review concludes with a brief discussion on the patentability and regulatory issues related to pharmaceutical cocrystals.
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Affiliation(s)
- Maan Singh
- Pharmaceutical Solid State Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Harsh Barua
- Solid State Pharmaceutical Cluster (SSPC), Science Foundation Ireland Research Centre for Pharmaceuticals, Bernal Institute, Department of Chemical Sciences, University of Limerick, V94T9PX Limerick, Ireland
| | - Vaskuri G. S. Sainaga Jyothi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India
| | - Madhukiran R. Dhondale
- Pharmaceutical Solid State Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Amritha G. Nambiar
- Pharmaceutical Solid State Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Ashish K. Agrawal
- Pharmaceutical Solid State Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | | | - Dinesh Kumar
- Pharmaceutical Solid State Research Laboratory, Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
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3
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Cersonsky RK, Pakhnova M, Engel EA, Ceriotti M. A data-driven interpretation of the stability of organic molecular crystals. Chem Sci 2023; 14:1272-1285. [PMID: 36756329 PMCID: PMC9891366 DOI: 10.1039/d2sc06198h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/06/2022] [Indexed: 01/17/2023] Open
Abstract
Due to the subtle balance of intermolecular interactions that govern structure-property relations, predicting the stability of crystal structures formed from molecular building blocks is a highly non-trivial scientific problem. A particularly active and fruitful approach involves classifying the different combinations of interacting chemical moieties, as understanding the relative energetics of different interactions enables the design of molecular crystals and fine-tuning of their stabilities. While this is usually performed based on the empirical observation of the most commonly encountered motifs in known crystal structures, we propose to apply a combination of supervised and unsupervised machine-learning techniques to automate the construction of an extensive library of molecular building blocks. We introduce a structural descriptor tailored to the prediction of the binding (lattice) energy and apply it to a curated dataset of organic crystals, exploiting its atom-centered nature to obtain a data-driven assessment of the contribution of different chemical groups to the lattice energy of the crystal. We then interpret this library using a low-dimensional representation of the structure-energy landscape and discuss selected examples of the insights into crystal engineering that can be extracted from this analysis, providing a complete database to guide the design of molecular materials.
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Affiliation(s)
- Rose K Cersonsky
- Laboratory of Computational Science and Modeling (COSMO), École Polytechnique Fédérale de Lausanne Lausanne Switzerland
| | - Maria Pakhnova
- Laboratory of Computational Science and Modeling (COSMO), École Polytechnique Fédérale de Lausanne Lausanne Switzerland
| | - Edgar A Engel
- TCM Group, Trinity College, Cambridge University Cambridge UK
| | - Michele Ceriotti
- Laboratory of Computational Science and Modeling (COSMO), École Polytechnique Fédérale de Lausanne Lausanne Switzerland
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4
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Xia YF, Lin ST, Zhang JR, Jiang CJ. The crystal structure of oxalic acid – 2-ethoxybenzamide (2/1), C 20H 24N 2O 8. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Abstract
C20H24N2O8, monoclinic, P21/n (no. 14), a = 3.8981(3) Å, b = 16.0675(11) Å, c = 16.2908(10) Å, β = 94.537(3)°, V = 1017.14(12) Å3, Z = 2, R
gt
(F) = 0.0634, wR
ref
(F
2) = 0.1746, T = 170 K.
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Affiliation(s)
- Ying-Fan Xia
- School of Biological and Chemical Engineering , Zhejiang University of Science and Technology , Hangzhou , Liuhe Road 318# , China
| | - Shu-Ting Lin
- School of Biological and Chemical Engineering , Zhejiang University of Science and Technology , Hangzhou , Liuhe Road 318# , China
| | - Jia-Rong Zhang
- School of Biological and Chemical Engineering , Zhejiang University of Science and Technology , Hangzhou , Liuhe Road 318# , China
| | - Cheng-Jun Jiang
- School of Biological and Chemical Engineering , Zhejiang University of Science and Technology , Hangzhou , Liuhe Road 318# , China
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5
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Pharmaceutical Cocrystals of Ethenzamide: Molecular Structure Analysis Based on Vibrational Spectra and DFT Calculations. Int J Mol Sci 2022; 23:ijms23158550. [PMID: 35955684 PMCID: PMC9369141 DOI: 10.3390/ijms23158550] [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: 07/12/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 02/06/2023] Open
Abstract
Pharmaceutical cocrystals can offer another advanced strategy for drug preparation and development and can facilitate improvements to the physicochemical properties of active pharmaceutical ingredients (APIs) without altering their chemical structures and corresponding pharmacological activities. Therefore, cocrystals show a great deal of potential in the development and research of drugs. In this work, pharmaceutical cocrystals of ethenzamide (ETZ) with 2,6-dihydroxybenzoic acid (26DHBA), 2,4-dihydroxybenzoic acid (24DHBA) and gallic acid (GA) were synthesized by the solvent evaporation method. In order to gain a deeper understanding of the structural changes after ETZ cocrystallization, terahertz time domain spectroscopy (THz-TDS) and Raman spectroscopy were used to characterize the single starting samples, corresponding physical mixtures and the cocrystals. In addition, the possible molecular structures of ETZ-GA, ETZ-26DHBA and ETZ-24DHBA cocrystals were optimized by density functional theory (DFT). The results of THz and Raman spectra with the DFT simulations for the three cocrystals revealed that the ETZ-GA cocrystal formed an O−H∙∙∙O hydrogen bond between the -OH of GA and oxygen of the amide group of the ETZ molecule, and it was also found that ETZ formed a dimer through a supramolecular amide–amide homosynthon; meanwhile, the ETZ-26DHBA cocrystal was formed by a powerful supramolecular acid–amide heterosynthon, and the ETZ-24DHBA cocrystal formed the O−H∙∙∙O hydrogen bond between the 4-hydroxy group of 24DHBA and oxygen of the amide group of the ETZ molecule. It could be seen that in the molecular structure analysis of the three cocrystals, the position and number of hydroxyl groups in the coformers play an essential role in guiding the formation of specific supramolecular synthons.
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6
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DUTT B, CHOUDHARY M, BUDHWAR V. A Brief Discussion of Multi-Component Organic Solids: Key Emphasis on Co-Crystallization. Turk J Pharm Sci 2022; 19:220-231. [DOI: 10.4274/tjps.galenos.2020.78700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Liu L, Yu YM, Yu Y, Bu FZ, Wu ZY, Yan CW, Li YT. Drug-nutrient cocrystallization-driven strategy towards self-assembly of milrinone and ferulic acid provides an exemplification in perfecting in vitro/ vivo characteristics of anti-heart failure drugs. NEW J CHEM 2022. [DOI: 10.1039/d2nj01509a] [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
The in vitro/vivo properties of the anti-heart failure drug milrinone were optimized by cocrystallizing with a nutraceutical, ferulic acid.
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Affiliation(s)
- Lu Liu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
| | - Yue-Ming Yu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science, Qingdao, Shandong, P. R. China
| | - Yu Yu
- Qingdao Institute for Food and Drug Control, Qingdao, Shandong, P. R. China
| | - Fan-Zhi Bu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
| | - Zhi-Yong Wu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science, Qingdao, Shandong, P. R. China
| | - Cui-Wei Yan
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
| | - Yan-Tuan Li
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong, P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science, Qingdao, Shandong, P. R. China
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8
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Garg U, Azim Y. Challenges and opportunities of pharmaceutical cocrystals: a focused review on non-steroidal anti-inflammatory drugs. RSC Med Chem 2021; 12:705-721. [PMID: 34124670 PMCID: PMC8152597 DOI: 10.1039/d0md00400f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/22/2021] [Indexed: 01/14/2023] Open
Abstract
The focus of the review is to discuss the relevant and essential aspects of pharmaceutical cocrystals in both academia and industry with an emphasis on non-steroidal anti-inflammatory drugs (NSAIDs). Although cocrystals have been prepared for a plethora of drugs, NSAID cocrystals are focused due to their humongous application in different fields of medication such as antipyretic, anti-inflammatory, analgesic, antiplatelet, antitumor, and anti-carcinogenic drugs. The highlights of the review are (a) background of cocrystals and other solid forms of an active pharmaceutical ingredient (API) based on the principles of crystal engineering, (b) why cocrystals are an excellent opportunity in the pharma industry, (c) common methods of preparation of cocrystals from the lab scale to bulk quantity, (d) some latest case studies of NSAIDs which have shown better physicochemical properties for example; mechanical properties (tabletability), hydration, solubility, bioavailability, and permeability, and (e) latest guidelines of the US FDA and EMA opening new opportunities and challenges.
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Affiliation(s)
- Utsav Garg
- Department of Applied Chemistry, Zakir Husain College of Engineering & Technology, Faculty of Engineering & Technology, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Yasser Azim
- Department of Applied Chemistry, Zakir Husain College of Engineering & Technology, Faculty of Engineering & Technology, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
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9
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Yu YM, Niu YY, Wang LY, Li YT, Wu ZY, Yan CW. Supramolecular self-assembly and perfected in vitro/ vivo property of 5-fluorouracil and ferulic acid on the strength of double optimized strategy: the first 5-fluorouracial-phenolic acid nutraceutical cocrystal with synergistic antitumor efficacy. Analyst 2021; 146:2506-2519. [PMID: 33899060 DOI: 10.1039/d1an00171j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For highlighting the predominance of phenolic acid nutraceutical ferulic acid (FR) in regulating the in vivo/vitro performances of anticancer drug 5-fluorouracil (Flu) and strengthening their cooperativity in antitumor effect, thus achieving a major breakthrough in the development of drug-nutraceutical cocrystal with synergistic antitumor action, a cocrystallization strategy of dual optimization is created, in which both the in vivo and vitro natures of Flu are improved by exploiting the FR's excellent physicochemical property. Moreover, Flu's anticancer effects were promoted by exerting the assistant antitumor peculiarity of FR. Such dual optimization of FR for Flu in physicochemical properties and anticancer activities is beneficial for realizing synergistic augmentation effect by taking the benefit of the cooperativeness of Flu and FR in the anticancer ability. Based on this idea, a novel cocrystal of Flu and FR, namely, Flu-FR-H2O, is successfully assembled as the first 5-fluorouracil-nutraceutical cocrystal with synergistic antitumor effect and its explicit structure is resolved. The single-crystal X-ray diffraction demonstrates that Flu and FR have a ratio of 1 : 1 with one equivalent of solvent water in the cocrystal, where one-dimensional hydrogen-bonding helices and FR-Flu hydrogen-bonding pairs, together construct a three-dimensional supramolecular network. By combining experimental evaluation with theoretical analysis, in vitro/vivo pharmaceutical properties are scientifically investigated. Results show that the permeability and aqueous solubility of Flu are respectively elevated by 5.08 and 1.64 folds, which has brought about ameliorated pharmacokinetics, thus providing prolonged retention time and increased oral bioavailability. More interestingly, the cocrystal shows synergistic inhibition ability of Flu and FR against tested tumor cell strains, hence laying the groundwork for reducing the dosage and even the toxic side effects of Flu. As a result of this, the present research not only provides a new strategy for Flu to optimize its physicochemical properties and antitumor activities simultaneously but also offers some opinions for the development of synergistic antitumor pharmaceutical cocrystals.
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Affiliation(s)
- Yue-Ming Yu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China.
| | - Yuan-Yuan Niu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China.
| | - Ling-Yang Wang
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China.
| | - Yan-Tuan Li
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China. and Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, 266003, PR China
| | - Zhi-Yong Wu
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China.
| | - Cui-Wei Yan
- School of Medicine and Pharmacy and College of Marine Life Science, Ocean University of China, Qingdao, Shandong 266003, PR China.
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10
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Improving the Solubility, Dissolution, and Bioavailability of Metronidazole via Cocrystallization with Ethyl Gallate. Pharmaceutics 2021; 13:pharmaceutics13040546. [PMID: 33919704 PMCID: PMC8070254 DOI: 10.3390/pharmaceutics13040546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 11/17/2022] Open
Abstract
Metronidazole (MTZ) is an antibacterial drug widely used for the treatment of protozoan and anaerobic infections in humans and animals. However, its low bioavailability necessitates the frequent administration of a high dose to attain an effective plasma concentration profile for therapy. To reduce the dose of MTZ, we have prepared a new cocrystal between MTZ and ethyl gallate (EG). The solid-state properties of MTZ-EG were characterized using complimentary techniques, including thermal, spectroscopic, microscopic, and X-ray crystallographic methods. The MTZ-EG cocrystal exhibits a higher solubility and faster dissolution than MTZ. The bioavailability of MTZ in rats was increased by 36% when MTZ-EG was used.
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11
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Devarapalli R, Indukuri A, Bollineni M, Mondal A, Reddy CM, Chennuru R. Investigation of Poor Solubility of a Salt-Cocrystal Hydrate: A Case Study of the Common-Ion Effect in Betrixaban, an Anticoagulant Drug. Mol Pharm 2021; 18:1138-1149. [PMID: 33528261 DOI: 10.1021/acs.molpharmaceut.0c01045] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Achieving the desired solubility and dissolution of active pharmaceutical ingredients (APIs) continues to be a big challenge in the pharmaceutical industry. In this regard, multicomponent solids of APIs such as salts and cocrystals have shown significant promise in resolving such solubility/dissolution issues. However, very little is known on how the APIs' solubility or dissolution is affected by the drug to coformer ratio in multicomponent solids. Betrixaban, is an anticoagulant drug approved in 2017 for the prevention of venous thromboembolism. During the alternate solid form development studies of the known betrixaban maleate, a rare multicomponent solid form, salt-cocrystal hydrate of betrixaban, was discovered and characterized thoroughly by spectroscopic, thermal, and X-ray crystallographic methods. Significantly, the new betrixaban maleate maleic acid hydrate (1:1:2:1) form has shown lower melting point (80 °C) as compared to its parent salt (197.5 °C). From such a large melting difference (117 °C) between the salt and salt-cocrystal hydrate of API, we anticipated substantially better solubility for the salt-cocrystal hydrate (low enthalpy). Furthermore, the predicted solubility also supported our anticipation. However, the powder dissolution tests at different pH conditions provided contrary results, that is, the salt-cocrystal hydrate showed 10 times lower solubility as compared to its salt. A detailed investigation, considering all the potential factors, revealed that "common-ion effect" could be a critical factor for the low solubility of the salt-cocrystal hydrate in which the API to coformer ratio is 1:3. To the best of our knowledge, this is the first case study on the solubility of pharmaceutical salt-cocrystal hydrates with an emphasis on "common-ion effect" or drug to coformer ratio.
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Affiliation(s)
- Ramesh Devarapalli
- Centre of Excellence Polymorphism, Research and Development, Integrated Product Development (IPD), Cipla Ltd., Virgonagar, Bangalore 560 049, Karnataka, India
| | - Anjaneyaraju Indukuri
- Centre of Excellence Polymorphism, Research and Development, Integrated Product Development (IPD), Cipla Ltd., Virgonagar, Bangalore 560 049, Karnataka, India
| | - Manjunath Bollineni
- Centre of Excellence Polymorphism, Research and Development, Integrated Product Development (IPD), Cipla Ltd., Virgonagar, Bangalore 560 049, Karnataka, India
| | - Amit Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Mohanpur 741 246, India
| | - C Malla Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Mohanpur 741 246, India
| | - Ramanaiah Chennuru
- Centre of Excellence Polymorphism, Research and Development, Integrated Product Development (IPD), Cipla Ltd., Virgonagar, Bangalore 560 049, Karnataka, India
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12
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Wang LL, Wang LY, Yu YM, Li YT, Wu ZY, Yan CW. Cocrystallization of 5-fluorouracil and l-phenylalanine: the first zwitterionic cocrystal of 5-fluorouracil with amino acid exhibiting perfect in vitro/vivo pharmaceutical properties. CrystEngComm 2020. [DOI: 10.1039/d0ce00713g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The first zwitterionic cocrystal of 5-fluorouracil with amino acid has been prepared and its structure and in vitro/vivo properties have been systematically studied.
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Affiliation(s)
- Lin-Lin Wang
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Ling-Yang Wang
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Yue-Ming Yu
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Yan-Tuan Li
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
- Laboratory for Marine Drugs and Bioproducts
| | - Zhi-Yong Wu
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
| | - Cui-Wei Yan
- School of Medicine and Pharmacy and College of Marine Life Science
- Ocean University of China
- Qingdao
- PR China
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13
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Tier AZ, Wust KM, Vieira JCB, Sardo M, Čendak T, Mafra L, Rocha J, Gindri IM, Hörner M, Frizzo CP. Nature of the multicomponent crystal of salicylic acid and 1,2-phenylenediamine. CrystEngComm 2020. [DOI: 10.1039/c9ce01650c] [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
The synthesis and characterization of the multicomponent crystal formed by salicylic acid and 1,2-phenylenediamine (a diarylamine) are reported.
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14
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Budhwar V, Dutt B, Choudhary M. Cocrystallization: An innovative route toward better medication. JOURNAL OF REPORTS IN PHARMACEUTICAL SCIENCES 2020. [DOI: 10.4103/jrptps.jrptps_103_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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15
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Yu YM, Wang LY, Bu FZ, Wang LL, Li YT, Wang C, Wu ZY. The supramolecular self-assembly of 5-fluorouracil and caffeic acid through cocrystallization strategy opens up a new way for the development of synergistic antitumor pharmaceutical cocrystal. CrystEngComm 2020. [DOI: 10.1039/d0ce01297a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cocrystallizing with caffeic acid (CF) provides a new strategy for effectually optimizing in vivo/vitro properties of anticancer drug 5-fluorouracil (FL).
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Affiliation(s)
- Yue-Ming Yu
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
| | - Ling-Yang Wang
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
| | - Fan-Zhi Bu
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
| | - Lin-Lin Wang
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
| | - Yan-Tuan Li
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
- Laboratory for Marine Drugs and Bioproducts
| | - Cheng Wang
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
| | - Zhi-Yong Wu
- School of Medicine and Pharmacy
- Ocean University of China
- Qingdao
- PR China
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16
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Insight into the Structure and Properties of Novel Imidazole-Based Salts of Salicylic Acid. Molecules 2019; 24:molecules24224144. [PMID: 31731746 PMCID: PMC6891694 DOI: 10.3390/molecules24224144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 11/17/2022] Open
Abstract
The preparation of new active pharmaceutical ingredient (API) multicomponent crystal forms, especially co-crystals and salts, is being considered as a reliable strategy to improve API solubility and bioavailability. In this study, three novel imidazole-based salts of the poorly water-soluble salicylic acid (SA) are reported exhibiting a remarkable improvement in solubility and dissolution rate properties. All structures were solved by powder X-ray diffraction. Multiple complementary techniques were used to solve co-crystal/salt ambiguities: density functional theory calculations, Raman and 1H/13C solid-state NMR spectroscopies. In all molecular salts, the crystal packing interactions are based on a common charged assisted +N-H(SA)⋯O−(co-former) hydrogen bond interaction. The presence of an extra methyl group in different positions of the co-former, induced different supramolecular arrangements, yielding salts with different physicochemical properties. All salts present much higher solubility and dissolution rate than pure SA. The most promising results were obtained for the salts with imidazole and 1-methylimidazole co-formers.
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17
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Mixed micelles of the antihistaminic cationic drug diphenhydramine hydrochloride with anionic and non-ionic surfactants show improved solubility, drug release and cytotoxicity of ethenzamide. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.070] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Manin AN, Drozd KV, Churakov AV, Perlovich GL. Design of 4-aminobenzoic acid two-component molecular crystals: prediction and experiments. CrystEngComm 2019. [DOI: 10.1039/c8ce01857j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cocrystal formation of 4-aminobenzoic acid with a variety of pyrimidine, pyridine and benzamide derivatives has been investigated.
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Affiliation(s)
- Alex N. Manin
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
| | - Ksenia V. Drozd
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
| | - Andrei V. Churakov
- Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
- Moscow
- Russian Federation
| | - German L. Perlovich
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences
- Ivanovo
- Russian Federation
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19
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Kozak A, Marek PH, Pindelska E. Structural Characterization and Pharmaceutical Properties of Three Novel Cocrystals of Ethenzamide With Aliphatic Dicarboxylic Acids. J Pharm Sci 2018; 108:1476-1485. [PMID: 30414866 DOI: 10.1016/j.xphs.2018.10.060] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/11/2018] [Accepted: 10/30/2018] [Indexed: 01/12/2023]
Abstract
Ethenzamide (ET) was screened in cocrystallization experiments with pharmaceutically acceptable coformer molecules to discover materials of improved physicochemical properties, that is, higher solubility and better stability. Three novel cocrystals of ET with glutaric, malonic, and maleic acids were obtained by neat grinding and slow evaporation from solution. The purpose of the study was to notice the changes in the geometry and interactions of ET molecule in crystalline phase introduced by different acid and relate them to physicochemical properties of pure ET. Therefore, the crystal structure of the cocrystals was determined by single crystal X-ray diffraction analysis. The powder samples were characterized by differential scanning calorimetry, Fourier-transform infrared spectroscopy, and 13C and 15N solid-state nuclear magnetic resonance spectroscopy. Spectroscopic studies were supported by gauge including projector augmented wave calculations of chemical shielding constants. The high stability of cocrystals during direct compression was proved. The solubility in simulated gastric fluids for studied cocrystals appeared to be approximately 1.6 times-fold higher than ET. The dissolution rates of all ET cocrystals were not faster than the pure drug, but after 240 min, more drugs were released.
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Affiliation(s)
- Agnieszka Kozak
- Chair of Analytical Chemistry and Biomaterials, Department of Analytical Chemistry, Faculty of Pharmacy With the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, 02-093 Warsaw, Poland
| | - Paulina H Marek
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; Czochralski Laboratory of Advanced Crystal Engineering, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-093 Warsaw, Poland
| | - Edyta Pindelska
- Chair of Analytical Chemistry and Biomaterials, Department of Analytical Chemistry, Faculty of Pharmacy With the Laboratory Medicine Division, Medical University of Warsaw, Banacha 1, 02-093 Warsaw, Poland.
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20
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Nechipadappu SK, Trivedi DR. Cocrystal of nutraceutical sinapic acid with Active Pharmaceutical Ingredients ethenzamide and 2-chloro-4-Nitrobenzoic acid: Equilibrium solubility and stability study. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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21
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Abbas N, Latif S, Afzal H, Arshad MS, Hussain A, Sadeeqa S, Bukhari NI. Simultaneously Improving Mechanical, Formulation, and In Vivo Performance of Naproxen by Co-Crystallization. AAPS PharmSciTech 2018; 19:3249-3257. [PMID: 30194682 DOI: 10.1208/s12249-018-1152-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/10/2018] [Indexed: 11/30/2022] Open
Abstract
Naproxen (NAP), an anti-inflammatory drug belonging to class II of Biopharmaceutic Classification System, has low aqueous solubility and dissolution rate which limit its oral bioavailability. The focus of this investigation was to assess the impact of co-crystallization in improving the physico-mechanical and in vivo performance of NAP. NAP was co-crystallized using nicotinamide as a co-former employing liquid-assisted grinding method and characterized by intrinsic dissolution rate, DSC, and PXRD. Prepared co-crystal exhibited improved physicochemical and mechanical properties. Mechanical behavior of NAP and developed co-crystal was analyzed by drawing tabletability curves. Over the entire range of used compaction pressure, NAP showed poor tensile strength (< 2 MPa) which resulted in lamination and capping in some tablets. In contrast, tensile strength of co-crystal gradually increased with pressure and was ~ 1.80 times that of NAP at 5000 psi. Intrinsic dissolution profile of co-crystal showed a more than five and twofold faster dissolution than NAP in 0.1 M HCl and phosphate buffer pH 7.4 at 37°C. In addition, formulation of co-crystal powder into tablets by direct compression demonstrated enhanced dissolution profiles (~ 43% in 0.1 M HCl and ~ 92% in phosphate buffer pH 7.4) in comparison to a marketed product, Neoprox (~ 25 and ~ 80%) after 60 min. In a single dose oral exposure study conducted in sheep, co-crystal showed more than 1.5-fold increase in AUC and Cmax. In conclusion, co-crystals of NAP illustrated better tabletability, in vitro and in vivo performance.
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22
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da Silva CCP, de Melo CC, Souza MS, Diniz LF, Carneiro RL, Ellena J. 5-Fluorocytosine/5-Fluorouracil Drug-Drug Cocrystal: a New Development Route Based on Mechanochemical Synthesis. J Pharm Innov 2018. [DOI: 10.1007/s12247-018-9333-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Rehman A, Delori A, Hughes DS, Jones W. Structural studies of crystalline forms of triamterene with carboxylic acid, GRAS and API molecules. IUCRJ 2018; 5:309-324. [PMID: 29755747 PMCID: PMC5929377 DOI: 10.1107/s2052252518003317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/26/2018] [Indexed: 06/08/2023]
Abstract
Pharmaceutical salt solvates (dimethyl sulfoxide, DMSO) of the drug triamterene with the coformers acetic, succinic, adipic, pimelic, azelaic and nicotinic acid and ibuprofen are prepared by liquid-assisted grinding and solvent-evaporative crystallization. The modified ΔpKa rule as proposed by Cruz-Cabeza [(2012 ▸). CrystEngComm, 14, 6362-6365] is in close agreement with the results of this study. All adducts were characterized by X-ray diffraction and thermal analytical techniques, including single-crystal X-ray diffraction, powder X-ray diffraction, differential scanning calorimetry and thermal gravimetric analysis. Hydrogen-bonded motifs combined to form a variety of extended tapes and sheets. Analysis of the crystal structures showed that all adducts existed as salt solvates and contained the amino-pyridinium-carboxyl-ate heterodimer, except for the solvate containing triamterene, ibuprofen and DMSO, as a result of the presence of a strong and stable hemitriamterenium duplex. A search of the Cambridge Structural Database (CSD 5.36, Version 1.18) to determine the frequency of occurrence of the putative supramolecular synthons found in this study showed good agreement with previous work.
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Affiliation(s)
- Abida Rehman
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, Cambridgeshire CB2 1EW, England
| | - Amit Delori
- Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, Scotland
| | - David S. Hughes
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, Cambridgeshire CB2 1EW, England
| | - William Jones
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, Cambridgeshire CB2 1EW, England
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24
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Amombo Noa FM, Mehlana G. Co-crystals and salts of vanillic acid and vanillin with amines. CrystEngComm 2018. [DOI: 10.1039/c7ce02022h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co-crystals and salts of vanillin and its oxidized form vanillic acid with amine-type molecules.
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Affiliation(s)
- Francoise M. Amombo Noa
- Centre for Supramolecular Chemistry Research
- Department of Chemistry
- University of Cape Town
- Rondebosch 7701
- South Africa
| | - Gift Mehlana
- Centre for Supramolecular Chemistry Research
- Department of Chemistry
- University of Cape Town
- Rondebosch 7701
- South Africa
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25
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Kakkar S, Bhattacharya B, Reddy CM, Ghosh S. Tuning mechanical behaviour by controlling the structure of a series of theophylline co-crystals. CrystEngComm 2018. [DOI: 10.1039/c7ce01915g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six new co-crystals of theophylline with some substituted carboxylic acids, amides and one active pharmaceutical ingredient (API) have been synthesized.
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Affiliation(s)
- Shubhangi Kakkar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- Kolkata
- India
| | - Biswajit Bhattacharya
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- Kolkata
- India
| | - C. Malla Reddy
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- Kolkata
- India
| | - Soumyajit Ghosh
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- Kolkata
- India
- Department of Chemistry and SRM Research Institute
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26
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Cysewski P, Przybyłek M. Selection of effective cocrystals former for dissolution rate improvement of active pharmaceutical ingredients based on lipoaffinity index. Eur J Pharm Sci 2017; 107:87-96. [PMID: 28687528 DOI: 10.1016/j.ejps.2017.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/06/2017] [Accepted: 07/03/2017] [Indexed: 10/19/2022]
Abstract
New theoretical screening procedure was proposed for appropriate selection of potential cocrystal formers possessing the ability of enhancing dissolution rates of drugs. The procedure relies on the training set comprising 102 positive and 17 negative cases of cocrystals found in the literature. Despite the fact that the only available data were of qualitative character, performed statistical analysis using binary classification allowed to formulate quantitative criterions. Among considered 3679 molecular descriptors the relative value of lipoaffinity index, expressed as the difference between values calculated for active compound and excipient, has been found as the most appropriate measure suited for discrimination of positive and negative cases. Assuming 5% precision, the applied classification criterion led to inclusion of 70% positive cases in the final prediction. Since lipoaffinity index is a molecular descriptor computed using only 2D information about a chemical structure, its estimation is straightforward and computationally inexpensive. The inclusion of an additional criterion quantifying the cocrystallization probability leads to the following conjunction criterions Hmix<-0.18 and ΔLA>3.61, allowing for identification of dissolution rate enhancers. The screening procedure was applied for finding the most promising coformers of such drugs as Iloperidone, Ritonavir, Carbamazepine and Enthenzamide.
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Affiliation(s)
- Piotr Cysewski
- Chair and Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland.
| | - Maciej Przybyłek
- Chair and Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland
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27
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Sokal A, Pindelska E, Szeleszczuk L, Kolodziejski W. Pharmaceutical properties of two ethenzamide-gentisic acid cocrystal polymorphs: Drug release profiles, spectroscopic studies and theoretical calculations. Int J Pharm 2017; 522:80-89. [PMID: 28274662 DOI: 10.1016/j.ijpharm.2017.03.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/27/2017] [Accepted: 03/04/2017] [Indexed: 02/05/2023]
Abstract
The aim of this study was to evaluate the stability and solubility of the polymorphic forms of the ethenzamide (ET) - gentisic acid (GA) cocrystals during standard technological processes leading to tablet formation, such as compression and excipient addition. In this work two polymorphic forms of pharmaceutical cocrystals (ETGA) were characterized by 13C and 15N solid-state nuclear magnetic resonance and Fourier transformed infrared spectroscopy. Spectroscopic studies were supported by gauge including projector augmented wave (GIPAW) calculations of chemical shielding constants.Polymorphs of cocrystals were easily identified and characterized on the basis of solid-state spectroscopic studies. ETGA cocrystals behaviour during direct compressionand tabletting with excipient addition were tested. In order to choose the best tablet composition with suitable properties for the pharmaceutical industry dissolution profile studies of tablets containing polymorphic forms of cocrystals with selected excipients were carried out.
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Affiliation(s)
- Agnieszka Sokal
- Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, Department of Inorganic and Analytical Chemistry, Banacha 1, 02-093, Warsaw, Poland.
| | - Edyta Pindelska
- Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, Department of Inorganic and Analytical Chemistry, Banacha 1, 02-093, Warsaw, Poland.
| | - Lukasz Szeleszczuk
- Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, Department of Physical Chemistry, Banacha 1, 02-093, Warsaw, Poland.
| | - Waclaw Kolodziejski
- Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, Department of Inorganic and Analytical Chemistry, Banacha 1, 02-093, Warsaw, Poland.
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28
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Sarmah KK, Boro K, Arhangelskis M, Thakuria R. Crystal structure landscape of ethenzamide: a physicochemical property study. CrystEngComm 2017. [DOI: 10.1039/c6ce02057g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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29
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Arenas-García JI, Herrera-Ruiz D, Morales-Rojas H, Höpfl H. Interrelation of the dissolution behavior and solid-state features of acetazolamide cocrystals. Eur J Pharm Sci 2017; 96:299-308. [DOI: 10.1016/j.ejps.2016.09.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/19/2016] [Accepted: 09/16/2016] [Indexed: 02/07/2023]
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30
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Sanphui P, Rajput L, Gopi SP, Desiraju GR. New multi-component solid forms of anti-cancer drug Erlotinib: role of auxiliary interactions in determining a preferred conformation. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2016; 72:291-300. [PMID: 27240760 DOI: 10.1107/s2052520616003607] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 03/01/2016] [Indexed: 06/05/2023]
Abstract
Erlotinib is a BCS (biopharmaceutical classification system) class II drug used for the treatment of non-small cell lung cancer. There is an urgent need to obtain new solid forms of higher solubility to improve the bioavailability of the API (active pharmaceutical ingredient). In this context, cocrystals with urea, succinic acid, and glutaric acid and salts with maleic acid, adipic acid, and saccharin were prepared via wet granulation and solution crystallizations. Crystal structures of the free base (Z' = 2), cocrystals of erlotinib-urea (1:1), erlotinib-succinic acid monohydrate (1:1:1), erlotinib-glutaric acid monohydrate (1:1:1) and salts of erlotinib-adipic acid adipate (1:0.5:0.5) are determined and their hydrogen-bonding patterns are analyzed. Self recognition via the (amine) N-H...N (pyridine) hydrogen bond between the API molecules is replaced by several heterosynthons such as acid-pyridine, amide-pyridine and carboxylate-pyridinium in the new binary systems. Auxiliary interactions play an important role in determining the conformation of the API in the crystal. FT-IR spectroscopy is used to distinguish between the salts and cocrystals in the new multi-component systems. The new solid forms are characterized by powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC) to confirm their unique phase identity.
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Affiliation(s)
- Palash Sanphui
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Lalit Rajput
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Shanmukha Prasad Gopi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
| | - Gautam R Desiraju
- Solid State and Structural Chemistry Unit, Indian Institute of Science, C. V. Raman Avenue, Bangalore, Karnatakla 560012, India
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31
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Cysewski P. Transferability of cocrystallization propensities between aromatic and heteroaromatic amides. Struct Chem 2016. [DOI: 10.1007/s11224-016-0760-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Przybyłek M, Ziółkowska D, Mroczyńska K, Cysewski P. Propensity of salicylamide and ethenzamide cocrystallization with aromatic carboxylic acids. Eur J Pharm Sci 2016; 85:132-40. [DOI: 10.1016/j.ejps.2016.02.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/13/2016] [Accepted: 02/15/2016] [Indexed: 11/26/2022]
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33
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Ullah M, Hussain I, Sun CC. The development of carbamazepine-succinic acid cocrystal tablet formulations with improved in vitro and in vivo performance. Drug Dev Ind Pharm 2015; 42:969-76. [PMID: 26460090 DOI: 10.3109/03639045.2015.1096281] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The use of soluble cocrystal for delivering drugs with low solubility, although a potentially effective approach, often suffers the problem of rapid disproportionation during dissolution, which negates the solubility advantages offered by the cocrystal. This necessitates their robust stabilization in order for successful use in a tablet dosage form. The cocrystal between carbamezepine and succinic acid (CBZ-SUC) exhibits a higher aqueous solubility than its dihydrate, which is the stable form of CBZ in water. Using this model system, we demonstrate an efficient and material-sparing tablet formulation screening approach enabled by intrinsic dissolution rate measurements. Three tablet formulations capable of stabilizing the cocrystal both under accelerated condition of 40 °C and 75% RH and during dissolution were developed using three different polymers, Soluplus® (F1), Kollidon VA/64 (F2) and Hydroxypropyl methyl cellulose acetate succinate (F3). When compared to a marketed product, Epitol® 200 mg tablets (F0), drug release after 60 min from formulations F1 (∼82%), F2 (∼95%) and F3 (∼95%) was all higher than that from Epitol® (79%) in a modified simulated intestinal fluid. Studies in albino rabbits show correspondingly better bioavailability of F1-F3 than Epitol.
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Affiliation(s)
- Majeed Ullah
- a Department of Pharmacy , COMSATS Institute of Information Technology , Abbottabad , Pakistan and.,b Department of Pharmaceutics , Pharmaceutical Materials Science and Engineering Laboratory, College of Pharmacy, University of Minnesota , Minneapolis , MN , USA
| | - Izhar Hussain
- a Department of Pharmacy , COMSATS Institute of Information Technology , Abbottabad , Pakistan and
| | - Changquan Calvin Sun
- b Department of Pharmaceutics , Pharmaceutical Materials Science and Engineering Laboratory, College of Pharmacy, University of Minnesota , Minneapolis , MN , USA
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34
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Mani R, Rietveld IB, Nicolaï B, Varadharajan K, Louhi-Kultanen M, Narasimhan S. Fluorescence and physical properties of the organic salt 2-chloro-4-nitrobenzoate–3-ammonium-phenol. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Manin AN, Voronin AP, Shishkina AV, Vener MV, Churakov AV, Perlovich GL. Influence of Secondary Interactions on the Structure, Sublimation Thermodynamics, and Solubility of Salicylate:4-Hydroxybenzamide Cocrystals. Combined Experimental and Theoretical Study. J Phys Chem B 2015; 119:10466-77. [PMID: 26258951 DOI: 10.1021/acs.jpcb.5b05082] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cocrystal screening of 4-hydroxybenzamide with a number of salicylates (salicylic acid, SA; 4-aminosalicylic acid, PASA; acetylsalicylic acid, ASA; and salicylsalicylic acid, SSA) was conducted to confirm the formation of two cocrystals, [SA+4-OHBZA] (1:1) and [PASA+4-OHBZA] (1:1). Their structures were determined using single-crystal X-ray diffraction, and the hydrogen-bond network topology was studied. Thermodynamic characteristics of salicylic acid cocrystal sublimation were obtained experimentally. It was proved that PASA cocrystallization with 4-OHBZA makes the drug more stable and prevents the irreversible process of decarboxylation of PASA resulting in formation of toxic 3-aminophenol. The pattern of non-covalent interactions in the cocrystals is described quantitatively using solid-state density functional theory followed by Bader analysis of the periodic electron density. It has been found that the total energy of secondary interactions between synthon atoms and the side hydroxyl group of the acid molecule in [SA+4-OHBZA] (1:1) and [PASA+4-OHBZA] (1:1) cocrystals is comparable to the energy of the primary acid-amide heterosynthon. The theoretical value of the sublimation enthalpy of [SA+4-OHBZA], 231 kJ/mol, agrees fairly well with the experimental one, 272 kJ/mol. The dissolution experiments with [SA+4-OHBZA] have proved that the relatively large cocrystal stability in relation to the stability of its components has a negative effect on the dissolution rate and equilibrium solubility. The [PASA+4-OHBZA] (1:1) cocrystal showed an enhancement of apparent solubility compared to that of the corresponding pure active pharmaceutical ingredient, while their intrinsic dissolution rates are comparable.
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Affiliation(s)
- Alex N Manin
- †G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 1, Academicheskaya, 153045 Ivanovo, Russian Federation
| | - Alexander P Voronin
- †G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 1, Academicheskaya, 153045 Ivanovo, Russian Federation
| | - Anastasia V Shishkina
- ‡Mendeleev University of Chemical Technology, 9, Miusskaya Square, 125047 Moscow, Russia
| | - Mikhail V Vener
- ‡Mendeleev University of Chemical Technology, 9, Miusskaya Square, 125047 Moscow, Russia
| | - Andrei V Churakov
- §Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prosp. 31, 119991 Moscow, Russia
| | - German L Perlovich
- †G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, 1, Academicheskaya, 153045 Ivanovo, Russian Federation
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36
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Przybyłek M, Cysewski P, Pawelec M, Ziółkowska D, Kobierski M. On the origin of surface imposed anisotropic growth of salicylic and acetylsalicylic acids crystals during droplet evaporation. J Mol Model 2015; 21:49. [PMID: 25690367 PMCID: PMC4333231 DOI: 10.1007/s00894-015-2599-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 01/26/2015] [Indexed: 11/30/2022]
Abstract
In this paper droplet evaporative crystallization of salicylic acid (SA) and acetylsalicylic acid (ASA) crystals on different surfaces, such as glass, polyvinyl alcohol (PVA), and paraffin was studied. The obtained crystals were analyzed using powder X-ray diffraction (PXRD) technique. In order to better understand the effect of the surface on evaporative crystallization, crystals deposited on glass were scraped off. Moreover, evaporative crystallization of a large volume of solution was performed. As we found, paraffin which is non-polar surface promotes formation of crystals morphologically similar to those obtained via bulk evaporative crystallization. On the other hand, when crystallization is carried out on the polar surfaces (glass and PVA), there is a significant orientation effect. This phenomenon is manifested by the reduction of the number of peaks in PXRD spectrum recorded for deposited on the surface crystals. Noteworthy, reduction of PXRD signals is not observed for powder samples obtained after scraping crystals off the glass. In order to explain the mechanism of carboxylic crystals growth on the polar surfaces, quantum-chemical computations were performed. It has been found that crystal faces of the strongest orientation effect can be characterized by the highest surface densities of intermolecular interactions energy (IIE). In case of SA and ASA crystals formed on the polar surfaces the most dominant faces are characterized by the highest adhesive and cohesive properties. This suggests that the selection rules of the orientation effect comes directly from surface IIE densities.
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Affiliation(s)
- Maciej Przybyłek
- Department of Physical Chemistry, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950, Bydgoszcz, Poland,
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37
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38
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Bugenhagen B, Al Jasem Y, Thiemann T. Crystal structure of 2-pentyl-oxybenzamide. Acta Crystallogr Sect E Struct Rep Online 2014; 70:231-4. [PMID: 25484660 PMCID: PMC4257159 DOI: 10.1107/s1600536814020571] [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: 08/31/2014] [Accepted: 09/14/2014] [Indexed: 11/10/2022]
Abstract
In the title mol-ecule, C12H17NO2, the amide NH2 group is oriented toward the pent-yloxy substituent and an intra-molecular N-H⋯O hydrogen bond is formed with the pent-yloxy O atom. The benzene ring forms dihedral angles of 2.93 (2) and 5.60 (2)° with the amide group and the pent-yloxy group mean planes, respectively. In the crystal, mol-ecules are linked by pairs of N-H⋯O hydrogen bonds, forming inversion dimers with their mol-ecular planes parallel, but at an offset of 0.45 (1) Å to each other. These dimers are ordered into two types of symmetry-related columns extended along the a axis, with the mean plane of one set of dimers in a column approximately parallel to (121) and the other in a column approximately parallel to (1-21). The two planes form a dihedral angle of 85.31 (2)°, and are linked via C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming a three-dimensional framework structure.
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Affiliation(s)
| | - Yosef Al Jasem
- Department of Chemical Engineering, United Arab Emirates University, AL Ain, Abu Dhabi, United Arab Emirates
| | - Thies Thiemann
- Department of Chemistry, United Arab Emirates University, AL Ain, Abu Dhabi, United Arab Emirates
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39
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Mani R, Rietveld IB, Varadharajan K, Louhi-Kultanen M, Muthu S. Fluorescence Properties Reinforced by Proton Transfer in the Salt 2,6-Diaminopyridinium Dihydrogen Phosphate. J Phys Chem A 2014; 118:6883-92. [DOI: 10.1021/jp504343a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Ivo B. Rietveld
- Laboratoire
de Chimie Physique, Faculté de Pharmacie, Université Paris Descartes, 75006 Paris, France
| | | | - Marjatta Louhi-Kultanen
- Department
of Chemical Technology, Lappeenranta University of Technology, Lappeenranta 53851, Finland
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40
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Saraswatula VG, Bhat MA, Gurunathan PK, Saha BK. Comparison of pyridyl and pyridyl N-oxide groups as acceptor in hydrogen bonding with carboxylic acid. CrystEngComm 2014. [DOI: 10.1039/c3ce42449a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The propensity of carboxyl⋯pyridyl synthon is more than carboxyl⋯pyridyl N-oxide synthon, but carboxyl⋯pyridyl N-oxide synthon forms shorter hydrogen bond than carboxyl⋯pyridyl synthon. Carboxyl⋯pyridyl N-oxide synthon containing systems might show better solubility than the corresponding carboxyl⋯pyridyl synthon containing systems.
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Affiliation(s)
| | - Mukhtar A. Bhat
- Department of Chemistry
- Pondicherry University
- Puducherry, India
| | | | - Binoy K. Saha
- Department of Chemistry
- Pondicherry University
- Puducherry, India
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41
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Perumalla SR, Pedireddi VR, Sun CC. Design, Synthesis, and Characterization of New 5-Fluorocytosine Salts. Mol Pharm 2013; 10:2462-6. [DOI: 10.1021/mp400070a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sathyanarayana R. Perumalla
- Department of Pharmaceutics,
College of Pharmacy, University of Minnesota, 308 Harvard Street S.E. Minneapolis, Minnesota 55455, United States
| | | | - Changquan C. Sun
- Department of Pharmaceutics,
College of Pharmacy, University of Minnesota, 308 Harvard Street S.E. Minneapolis, Minnesota 55455, United States
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