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Levine DJ, Gonzalez MI, Legendre CM, Runčevski T, Oktawiec J, Colwell KA, Long JR. Calcium Coordination Solids for pH-Triggered Release of Olsalazine. ChemMedChem 2017; 12:1739-1742. [PMID: 28901042 DOI: 10.1002/cmdc.201700540] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Indexed: 01/22/2023]
Abstract
Calcium coordination solids were synthesized and evaluated for delivery of olsalazine (H4 olz), an anti-inflammatory compound used for treatment of ulcerative colitis. The materials include one-dimensional Ca(H2 olz)⋅4 H2 O chains, two-dimensional Ca(H2 olz)⋅2 H2 O sheets, and a three-dimensional metal-organic framework Ca(H2 olz)⋅2DMF (DMF=N,N-dimethylformamide). The framework undergoes structural changes in response to solvent, forming a dense Ca(H2 olz) phase when exposed to aqueous HCl. The compounds Ca(H2 olz)⋅x H2 O (x=0, 2, 4) were each pressed into pellets and exposed to simulated gastrointestinal fluids to mimic the passage of a pill from the acidic stomach to the pH-neutral intestines. All three calcium materials exhibited a delayed release of olsalazine relative to Na2 (H2 olz), the commercial formulation, illustrating how formulation of a drug within an extended coordination solid can serve to tune its solubility and performance.
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Affiliation(s)
- Dana J Levine
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Department of Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Miguel I Gonzalez
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Christina M Legendre
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Tomče Runčevski
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Julia Oktawiec
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Kristen A Colwell
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Jeffrey R Long
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
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Yatsenko AV, Paseshnichenko KA. Carboxylate-phenolate tautomerism in 5-[(nitrophenyl)diazenyl]salicylate anions. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2016; 72:274-9. [PMID: 27045176 DOI: 10.1107/s2053229616003193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/24/2016] [Indexed: 11/10/2022]
Abstract
Aryldiazenyl derivatives of salicylic acid and their salts are used as dyes. In these structures, the carboxylate groups are engaged in short contacts with the cations and in hydrogen bonds with water molecules, if present. If both O atoms of the carboxylate group take part in such interactions, the negative charge is delocalized over the two atoms. In the absence of hydrogen bonds and contacts with cations, the negative charge is localized on one of the O atoms. In the crystal structures of tetramethylammonium 2-hydroxy-5-[(E)-(4-nitrophenyl)diazenyl]benzoate and tetramethylammonium 2-hydroxy-5-[(E)-(2-nitrophenyl)diazenyl]benzoate, both C4H12N(+)·C13H8N3O5(-), all the interactions between the cations and anions are weak, and their effect on the geometry of the anions is negligible. Under these conditions, the 2-nitro-substituted anion is an almost pure phenol-carboxylate tautomer, whereas in the 4-nitro-substituted anion, the phenolic H atom is shifted towards the carboxylate group, and thus the structure of this anion is intermediate between the phenol-carboxylate and phenolate-carboxylic acid tautomeric forms. The probable formation of such an intermediate form is supported by quantum chemical calculations. Being the characteristic feature of this form, a short distance between the phenolic and carboxylate O atoms is observed in the 4-nitro-substituted anion, as well as in the structures of some 3,5-dinitrosalicylates reported in the literature.
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Affiliation(s)
- Alexandr V Yatsenko
- Department of Chemistry, Moscow State University, 119991 Moscow, Russian Federation
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Miller SR, Alvarez E, Fradcourt L, Devic T, Wuttke S, Wheatley PS, Steunou N, Bonhomme C, Gervais C, Laurencin D, Morris RE, Vimont A, Daturi M, Horcajada P, Serre C. A rare example of a porous Ca-MOF for the controlled release of biologically active NO. Chem Commun (Camb) 2014; 49:7773-5. [PMID: 23687655 DOI: 10.1039/c3cc41987h] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A 1D-microporous 3D calcium tetracarboxylate MOF has been solvothermally prepared and its structure solved from single crystal data. It exhibits coordinatively unsaturated Ca(2+) Lewis acid sites able to trap and deliver nitric oxide at a biological level.
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Affiliation(s)
- Stuart R Miller
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, 45 avenue des Etats-Unis, 78035 Versailles cedex, France
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Okamura TA, Nakagawa J. Contribution of Intramolecular NH···O Hydrogen Bonds to Magnesium–Carboxylate Bonds. Inorg Chem 2013; 52:10812-24. [DOI: 10.1021/ic400671v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Taka-aki Okamura
- Department
of Macromolecular
Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Junko Nakagawa
- Department
of Macromolecular
Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Chen HY, Xiao DR, Yan SW, He JH, Yang J, Wang X, Yuan R, Wang EB. Two three-dimensional pillared metal–olsalazine complexes based on infinite rod-shaped secondary building units. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.01.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tang YZ, Tan YH, Ge ZT, Liu ZX, Liao CFA, Xie XB. Synthesis and crystal structures of two rare-earth metal polymers of olsalazine. J COORD CHEM 2010. [DOI: 10.1080/00958970902906268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yun-Zhi Tang
- a School of Material Science & Chemistry Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, P.R. China
| | - Yu-Hui Tan
- b Department of Pharmacy , Gannan Medical University , Ganzhou 341000, P.R. China
| | - Zong-Tang Ge
- a School of Material Science & Chemistry Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, P.R. China
| | - Zhen-Xin Liu
- a School of Material Science & Chemistry Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, P.R. China
| | - Chun-FA Liao
- a School of Material Science & Chemistry Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, P.R. China
| | - Xiao-Bin Xie
- a School of Material Science & Chemistry Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, P.R. China
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