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Kar A, Giri L, Kenguva G, Kumar Bommaka M, Bandi S, Dandela R. Multi-component forms of the 2nd generation H1 receptor antagonist drug, Bilastine and its enhanced physicochemical characteristics. Bioorg Chem 2024; 151:107672. [PMID: 39068718 DOI: 10.1016/j.bioorg.2024.107672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/10/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
Bilastine (BIL) is a novel 2nd generation antihistamine medication is used to treat symptoms of chronic urticaria and allergic rhinitis. However, its poor solubility limits its therapeutic efficacy. In order to enhance the physicochemical characteristics of BIL, various molecular adducts of BIL (Salt, hydrate and co-crystal) were discovered in this study using two distinct salt-formers: Terephthalic acid (TA), 2,4-Dihydroxybenzoic acid (2,4-DHBA), and three nutraceuticals (Vanillic Acid (VA), Hydroquinone (HQN) and Hippuric acid (HA)). Various analytical methods were used to examine the synthesised adducts, including Powder X-Ray Diffraction (PXRD), Single Crystal X-ray Diffraction (SCXRD), and thermal analysis (Thermogravimetric analysis (TGA) and Differential Scanning Calorimetry (DSC)). Single-crystal X-ray diffraction (SCXRD) studies avowed that the architectures of the molecular adducts are maintained in the solid state by an array of strong (N+H⋯O-, NH⋯O, OH⋯O) and weak (CH⋯O) hydrogen bonds. Additionally, a solubility test was performed to establish the in vitro release characteristics of newly synthesised BIL adducts and it observed that most of the molecular adducts exhibit higher rates of dissolution in comparison to pure BIL; in particular, BIL.TA.HYD showed the highest solubility and the fastest rate of dissolution. Moreover, experiments on flux permeability and diffusion demonstrated that the BIL.TA.HYD and BIL.VA salts had strong permeability and a high diffusion rate. In addition, the synthesized adduct's stability was assessed at 25 °C and 90 % ± 5 % relative humidity, and it was found that all the molecular salts were stable and did not undergo any phase changes or dissociation. The foregoing result leads us to believe that the newly synthesized molecular adducts' increased permeability and solubility will be advantageous for the creation of novel BIL formulations.
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Affiliation(s)
- Ananya Kar
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology-Indian Oil Bhubaneswar Campus, Bhubaneswar, India
| | - Lopamudra Giri
- Department of Chemistry, Odisha University of Technology and Research, (Formerly CET), Bhubaneswar, India
| | - Gowtham Kenguva
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology-Indian Oil Bhubaneswar Campus, Bhubaneswar, India
| | - Manish Kumar Bommaka
- Department of Chemistry, Gokaraju Rangaraju College of Pharmacy, Nizampet Road, Bachupally, Hyderabad, Telangana 500090, India
| | - Sreenivasulu Bandi
- School of Chemical Sciences, St Joseph's University, Lalbagh Road, Bangalore, Karnataka 560027, India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology-Indian Oil Bhubaneswar Campus, Bhubaneswar, India.
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An Q, Li N, Zhao Z, Wang N, Wang X, Yang X, Yang D, Zhang L, Lu Y, Du G, Chan HCS. Two Novel Metformin Carboxylate Salts and the Accidental Discovery of Two 1,3,5-Triazine Antihyperglycemic Agent. ACS OMEGA 2023; 8:48028-48041. [PMID: 38144133 PMCID: PMC10734001 DOI: 10.1021/acsomega.3c06721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 12/26/2023]
Abstract
Metformin (MET), commonly marketed as a hydrochloride salt (MET-HCl) for better pharmacokinetic profile over the free base, would release a high concentration of chloride ions and cause adverse gastrointestinal effects. The preparation of chloride-free MET salts could potentially circumvent this issue. In this study, seven carboxylic acids (formic acid, acetic acid, malonic acid, succinic acid, fumaric acid, cinnamic acid, and acetylsalicylic acid) were used for preparing MET carboxylate salts. When compared with MET-HCl, all MET salts/salt hydrates show lower dissolution rates in pH 6.8 phosphate buffer. However, the cinnamic acid and acetylsalicylic acid show significantly higher dissolution rates in the forms of MET salt/salt hydrate. In the permeability test, the permeability of the MET in all of the salts was not improved. However, the permeability of cinnamic acid in the MET cinnamate is reduced, and the permeability of acetylsalicylic acid in the MET acetylsalicylate is increased. Meanwhile, at a higher crystallization temperature, the acetone solvent and a hydrolyzed product of acetylsalicylic acid react with MET respectively, leading to two unexpected 1,3,5-triazine derivatives. The results of in vitro bioactivity assays indicate that one of the triazine molecules promote glucose consumption more effectively than MET-HCl, and had relatively weak lactate production ability at low concentration. This glucose metabolism regulating compound may serve as a novel lead antihyperglycemic agent for further optimization.
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Affiliation(s)
- Qi An
- Beijing
City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical
Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
| | - Na Li
- Beijing
City Key Laboratory of Drug Target and Screening Research, National
Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, P.R. China
| | - Zhehui Zhao
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Beijing Key Laboratory of Active Substances Discovery and Drugability
Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
| | - Nuoqi Wang
- Beijing
City Key Laboratory of Drug Target and Screening Research, National
Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, P.R. China
| | - Xueying Wang
- BayRay
Innovation Center, Shenzhen Bay Laboratory, A2202, Gaoke Innovation Center, Guangqiao Road,
Guangming District Shenzhen, Guangdong 518000, P.R. China
| | - Xiuying Yang
- Beijing
City Key Laboratory of Drug Target and Screening Research, National
Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, P.R. China
| | - Dezhi Yang
- Beijing
City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical
Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
| | - Li Zhang
- Beijing
City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical
Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
| | - Yang Lu
- Beijing
City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical
Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P.R. China
| | - Guanhua Du
- Beijing
City Key Laboratory of Drug Target and Screening Research, National
Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, P.R. China
| | - H. C. Stephen Chan
- Shenzhen
Zhongke Cedar Tree Trading Company, Shenzhen, Guangdong 518017, P.R. China
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