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Jung E, Kraimps A, Dittmann S, Griesser T, Costafrolaz J, Mattenberger Y, Jurt S, Viollier PH, Sander P, Sievers S, Gademann K. Phenolic Substitution in Fidaxomicin: A Semisynthetic Approach to Antibiotic Activity Across Species. Chembiochem 2023; 24:e202300570. [PMID: 37728121 DOI: 10.1002/cbic.202300570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/21/2023]
Abstract
Fidaxomicin (Fdx) is a natural product antibiotic with potent activity against Clostridioides difficile and other Gram-positive bacteria such as Mycobacterium tuberculosis. Only a few Fdx derivatives have been synthesized and examined for their biological activity in the 50 years since its discovery. Fdx has a well-studied mechanism of action, namely inhibition of the bacterial RNA polymerase. Yet, the targeted organisms harbor different target protein sequences, which poses a challenge for the rational development of new semisynthetic Fdx derivatives. We introduced substituents on the two phenolic hydroxy groups of Fdx and evaluated the resulting trends in antibiotic activity against M. tuberculosis, C. difficile, and the Gram-negative model organism Caulobacter crescentus. As suggested by the target protein structures, we identified the preferable derivatisation site for each organism. The derivative ortho-methyl Fdx also exhibited activity against the Gram-negative C. crescentus wild type, a first for fidaxomicin antibiotics. These insights will guide the synthesis of next-generation fidaxomicin antibiotics.
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Affiliation(s)
- Erik Jung
- Department of Chemistry, University of Zurich, 8057, Zürich, Switzerland
| | - Anastassia Kraimps
- Department of Chemistry, University of Zurich, 8057, Zürich, Switzerland
| | - Silvia Dittmann
- Department of Microbial Physiology and Molecular Biology, Institute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany
| | - Tizian Griesser
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Jordan Costafrolaz
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Yves Mattenberger
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Simon Jurt
- Department of Chemistry, University of Zurich, 8057, Zürich, Switzerland
| | - Patrick H Viollier
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Peter Sander
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Susanne Sievers
- Department of Microbial Physiology and Molecular Biology, Institute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany
| | - Karl Gademann
- Department of Chemistry, University of Zurich, 8057, Zürich, Switzerland
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2
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Coutinho AL, Cristofoletti R, Wu F, Shoyaib AA, Dressman J, Polli JE. A robust, viable, and resource sparing HPLC-based logP method applied to common drugs. Int J Pharm 2023; 644:123325. [PMID: 37591472 DOI: 10.1016/j.ijpharm.2023.123325] [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: 07/17/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023]
Abstract
Reliable, experimentally determined partition coefficient P (logP) for most drugs are often unavailable in the literature. Many values are from in silico predictions and may not accurately reflect drug lipophilicity. In this study, a robust, viable, and resource sparing method to measure logP was developed using reverse phase high performance liquid chromatography (RP-HPLC). The logP of twelve common drugs was measured using calibration curves at pH 6 and 9 that were created using reference standards with well-established logP. The HPLC method reported here can be used for high throughput estimation of logP of commonly used drugs. LogP values here showed general agreement with the other few HPLC-based literature logP values available. Additionally, the HPLC-based logP values found here agreed partially with literature logP values found using other methodologies (±10%). However, there was no strong agreement since there are few experimentally determined literature logP values. This paper shows a facile method to estimate logP without using octanol or computational approaches. This method has excellent promise to provide reliable logP values of commonly used drugs available in literature. A larger pool of reliable logP values of commonly drugs has promise to improve quality of medicinal chemistry and pharmacokinetic (PK) models.
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Affiliation(s)
- Ana L Coutinho
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - Rodrigo Cristofoletti
- Department of Pharmaceutics, Center for Pharmacometrics and Systems Pharmacology, College of Pharmacy, University of Florida, Orlando, FL, United States
| | - Fang Wu
- Office of Generic Drugs, Food and Drug Administration, White Oak, MD, United States
| | - Abdullah Al Shoyaib
- Office of Generic Drugs, Food and Drug Administration, White Oak, MD, United States
| | - Jennifer Dressman
- Fraunhofer Institute of Translational Medicine and Pharmacology, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - James E Polli
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States.
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3
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Redka M, Baumgart S, Kupczyk D, Kosmalski T, Studzińska R. Lipophilic Studies and In Silico ADME Profiling of Biologically Active 2-Aminothiazol-4(5 H)-one Derivatives. Int J Mol Sci 2023; 24:12230. [PMID: 37569606 PMCID: PMC10418735 DOI: 10.3390/ijms241512230] [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: 07/10/2023] [Revised: 07/26/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Pseudothiohydantoin derivatives have a wide range of biological activities and are widely used in the development of new pharmaceuticals. Lipophilicity is a basic, but very important parameter in the design of potential drugs, as it determines solubility in lipids, nonpolar solvents, and makes it possible to predict the ADME profile. The aim of this study was to evaluate the lipophilicity of 28 pseudothiohydantoin derivatives showing the inhibition of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) using chromatographic methods. Experimentally, lipophilicity was determined by reverse phase thin layer chromatography (RP-TLC) and reverse phase high-performance liquid chromatography (RP-HPLC). In both methods, methanol was used as the organic modifier of the mobile phase. For each 2-aminothiazol-4(5H)-one derivative, a relationship was observed between the structure of the compound and the values of the lipophilicity parameters (log kw, RM0). Experimental lipophilicity values were compared with computer calculated partition coefficient (logP) values. A total of 27 of the 28 tested compounds had a lipophilicity value < 5, which therefore met the condition of Lipinski's rule. In addition, the in silico ADME assay showed favorable absorption, distribution, metabolism, and excretion parameters for most of the pseudothiohydantoin derivatives tested. The study of lipophilicity and the ADME analysis indicate that the tested compounds are good potential drug candidates.
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Affiliation(s)
- Małgorzata Redka
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 Jurasza Str., 85-089 Bydgoszcz, Poland; (M.R.); (S.B.); (T.K.)
| | - Szymon Baumgart
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 Jurasza Str., 85-089 Bydgoszcz, Poland; (M.R.); (S.B.); (T.K.)
| | - Daria Kupczyk
- Department of Medical Biology and Biochemistry, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza Str., 85-092 Bydgoszcz, Poland;
| | - Tomasz Kosmalski
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 Jurasza Str., 85-089 Bydgoszcz, Poland; (M.R.); (S.B.); (T.K.)
| | - Renata Studzińska
- Department of Organic Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 2 Jurasza Str., 85-089 Bydgoszcz, Poland; (M.R.); (S.B.); (T.K.)
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4
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Ma Y, Chen X, Javeria H, Du Z. High-throughput screening of LogD by using a sample pooling approach based on the traditional shake flask method. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1227:123804. [PMID: 37393793 DOI: 10.1016/j.jchromb.2023.123804] [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: 04/13/2023] [Revised: 05/30/2023] [Accepted: 06/15/2023] [Indexed: 07/04/2023]
Abstract
A new approach for screening LogD is presented. The method is based on the shake flask method combined with rapid generic LC-MS/MS bioanalysis by using a sample pooling approach that enables high-throughput screening of LogD or LogP in the drug discovery stage. The method is evaluated by a comparison of measured LogD between single and pooled compounds for a test set of structurally diverse compounds with a wide range of LogD values (from -0.04 to 6.01). Test compounds include 10 commercially available drug standards along with 27 new chemical entities. A good correlation (RMSE = 0.21, R2 = 0.9879) of LogD between the single and pooled compounds was obtained, suggesting that at least 37 compounds can be simultaneously measured with acceptable accuracy. The sample pooling method significantly reduced the number of bioanalysis samples as compared to the single compound measurement by the conventional shake flask method. The impact of DMSO content on LogD measurement was also investigated and the result demonstrated that at least 0.5% DMSO was tolerated in this method. The current new development will facilitate the drug discovery process by more rapidly assessing the LogD or LogP of drug candidates.
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Affiliation(s)
- Yongfen Ma
- College of Chemistry, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaowei Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 117004, Liaoning, China
| | - Huma Javeria
- College of Chemistry, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenxia Du
- College of Chemistry, Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing 100029, China.
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5
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Katz D, Fike K, Longenberger J, Placko S, Philippe-Venec L, Chervenak A. AlphaLogD determination: An optimized Reversed-Phase Liquid Chromatography method to measure lipophilicity on neutral and basic small and Beyond-Rule-of-Five compounds. J Chromatogr A 2022; 1674:463146. [DOI: 10.1016/j.chroma.2022.463146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 03/21/2022] [Accepted: 05/11/2022] [Indexed: 11/29/2022]
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6
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Modeling of Anticancer Sulfonamide Derivatives Lipophilicity by Chemometric and Quantitative Structure-Retention Relationships Approaches. Molecules 2022; 27:molecules27133965. [PMID: 35807212 PMCID: PMC9268166 DOI: 10.3390/molecules27133965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/01/2023] Open
Abstract
Sulfonamides are a classic group of chemotherapeutic drugs with a broad spectrum of pharmacological action, including anticancer activity. In this work, reversed-phase high-performance liquid chromatography and biomimetic chromatography were applied to characterize the lipophilicity of sulfonamide derivatives with proven anticancer activities against human colon cancer. Chromatographically determined lipophilicity parameters were compared with obtained logP, employing various computational approaches. Similarities and dissimilarities between experimental and computational logP were studied using principal component analysis, cluster analysis, and the sum of ranking differences. Furthermore, quantitative structure–retention relationship modeling was applied to understand the influences of sulfonamide’s molecular properties on lipophilicity and affinity to phospholipids.
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7
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Waibl F, Kraml J, Hoerschinger VJ, Hofer F, Kamenik AS, Fernández-Quintero ML, Liedl KR. Grid inhomogeneous solvation theory for cross-solvation in rigid solvents. J Chem Phys 2022; 156:204101. [PMID: 35649837 DOI: 10.1063/5.0087549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Grid Inhomogeneous Solvation Theory (GIST) has proven useful to calculate localized thermodynamic properties of water around a solute. Numerous studies have leveraged this information to enhance structure-based binding predictions. We have recently extended GIST toward chloroform as a solvent to allow the prediction of passive membrane permeability. Here, we further generalize the GIST algorithm toward all solvents that can be modeled as rigid molecules. This restriction is inherent to the method and is already present in the inhomogeneous solvation theory. Here, we show that our approach can be applied to various solvent molecules by comparing the results of GIST simulations with thermodynamic integration (TI) calculations and experimental results. Additionally, we analyze and compare a matrix consisting of 100 entries of ten different solvent molecules solvated within each other. We find that the GIST results are highly correlated with TI calculations as well as experiments. For some solvents, we find Pearson correlations of up to 0.99 to the true entropy, while others are affected by the first-order approximation more strongly. The enthalpy-entropy splitting provided by GIST allows us to extend a recently published approach, which estimates higher order entropies by a linear scaling of the first-order entropy, to solvents other than water. Furthermore, we investigate the convergence of GIST in different solvents. We conclude that our extension to GIST reliably calculates localized thermodynamic properties for different solvents and thereby significantly extends the applicability of this widely used method.
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Affiliation(s)
- Franz Waibl
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Johannes Kraml
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Valentin J Hoerschinger
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Florian Hofer
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Anna S Kamenik
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Monica L Fernández-Quintero
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
| | - Klaus R Liedl
- Center for Molecular Biosciences Innsbruck, Department of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck, Austria
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8
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Oguegbulu JC, Khalaf AI, Suckling CJ, Harnett MM, Harnett W. Lead optimisation efforts on a molecular prototype of the immunomodulatory parasitic protein ES-62. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The immunomodulatory property of some parasitic helminths is well documented. The glycoprotein ES-62 from the nematode, acanthocheilonema viteae has been found to possess immunomodulatory properties. Two small molecule analogues (SMA’s) of ES-62 (S3 and S5) were found to mimic its immunomodulatory properties in vivo and were active in animal models of allergic, inflammatory and autoimmune diseases. In this work, new efforts were made to further optimise the activities of compound S3 by making small but directed structural changes. A variety of analogues based on the S3 prototype were simulated by making variations at one position and then screened in silico. The best compounds were selected based on predicted physiochemical properties and medicinal chemistry indices and synthesised. Structural elucidation was done via HNMR, LCMS, FTIR and HRESIMS. The predicted properties were evaluated by HPLC method. A total of 11 novel molecules were synthesised and characterised. Significant correlation was obtained between the predicted physicochemical properties and their HPLC retention times (RT) for eight of our novel compounds. This suggests that these compounds may behave in a physiological environment as closely as computationally predicted. This entails, lesser host toxicity while maintaining good or better activities compared to the earlier prototype. They hence provide a good opportunity for development of drugs for immune conditions such as asthma, inflammation and autoimmune diseases.
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Affiliation(s)
- Joseph C. Oguegbulu
- Department of Chemical Sciences , Bingham University , PMB 005 , Karu , Nasarawa State , Nigeria
| | - Abedawn I. Khalaf
- Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow G1 1XL , UK
| | - Colin J. Suckling
- Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow G1 1XL , UK
| | - Margaret M. Harnett
- Institute of Infection, Immunity and Inflammation, University of Glasgow , Glasgow G12 8TA , UK
| | - William Harnett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Glasgow G4 0RE , UK
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9
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Multivariate assessment of anticancer oleanane triterpenoids lipophilicity. J Chromatogr A 2021; 1656:462552. [PMID: 34571283 DOI: 10.1016/j.chroma.2021.462552] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 12/24/2022]
Abstract
Naturally occurring molecules are excellent sources of lead compounds. A series of oleanolic acid (OA) derivatives previously synthesized in our laboratory, which show promising antitumor activity, have been analyzed in terms of lipophilicity evaluation applying chromatographic and computational approaches. Retention data obtained on three reversed-phase liquid chromatography stationary phases (RP-HPLC) and immobilized artificial membrane chromatography (IAM-HPLC) were compared with computational methods using chemometric tools such as cluster analysis, principal component analysis and sum of ranking differences. To investigate the molecular mechanism of retention quantitive structure retention relationship analysis was performed, based on the genetic algorithm coupled with multiple linear regression (GA-MLR). The obtained results suggested that the ionization potential of studied molecules significantly affects their retention in classical RP-HPLC. In IAM-HPLC additionally, polarizability-related descriptors also play an essential role in that process. The lipophilicity indices comparison shows significant differences between the computational lipophilicity and chromatographically determined ones.
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10
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Clark JL, Neyyappadath RM, Yu C, Slawin AMZ, Cordes DB, O'Hagan D. Janus All-Cis 2,3,4,5,6-Pentafluorocyclohexyl Building Blocks Applied to Medicinal Chemistry and Bioactives Discovery Chemistry. Chemistry 2021; 27:16000-16005. [PMID: 34486192 PMCID: PMC9292521 DOI: 10.1002/chem.202102819] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 12/24/2022]
Abstract
Monoalkylated derivatives of the unusually polar all‐cis 2,3,4,5,6‐ pentafluorocyclohexyl (Janus face) motif are prepared starting from an aryl hydrogenation of 2,3,4,5,6‐ pentafluorophenylacetate methyl ester 15. The method used Zeng's Rh(CAAC) carbene catalyst 4 in the hydrogenation following the protocol developed by Glorius. The resultant Janus pentafluorocyclohexylacetate methyl ester 16 was converted to the corresponding alcohol 18, aldehyde 13, bromide 29 and azide 14 through functional group manipulations, and some of these building blocks were used in Ugi‐multicomponent and Cu‐catalysed click reactions. NBoc protected pentafluoroarylphenylalanine methyl ester 35 was also subject to an aryl hydrogenation, and then deprotection to generate the Janus face β‐pentafluorocyclohexyl‐alanine amino acid 15, which was incorporated into representative members of an emerging class of candidate antiviral compounds. Log P measurements demonstrate that the all‐cis 2,3,4,5,6‐pentafluorocyclohexyl ring system is more polar than a phenyl ring. In overview the paper introduces new building blocks containing this Janus ring and demonstrates their progression to molecules typically used in bioactives discovery programmes.
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Affiliation(s)
- Joshua L Clark
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | | | - Cihang Yu
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Alexandra M Z Slawin
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - David B Cordes
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - David O'Hagan
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
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11
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UPLC-PDA: A greener miniaturized tool for the analysis and purity assessment of ebastine and phenylephrine hydrochloride. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Comprehensive two-dimensional liquid chromatography as a biomimetic screening platform for pharmacokinetic profiling of compound libraries in early drug development. Anal Chim Acta 2020; 1142:157-168. [PMID: 33280693 DOI: 10.1016/j.aca.2020.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 11/20/2022]
Abstract
A comprehensive two-dimensional liquid chromatography-based biomimetic platform (LCxLC) has been developed and validated for drug diffusion studies. Human serum albumin (HSA) and immobilized artificial membrane (IAM) were thereby used in the first (1D) and second (2D) separation dimension, respectively. While the former was meant to emulate the blood, the latter was instead intended to mimic the intestinal mucosa epithelium. Therefore, the experimental conditions, i.e. pH, temperature and buffer composition, were modulated to reflect faithfully in vivo conditions. 30 compounds, whose effective intestinal permeability (Peff) assayed in situ on humans by a validated technique was known from the literature, were used as model drugs. A good and orthogonal separation was achieved for the whole dataset, although for a better distribution of the most polar compounds in the elution window a segmented gradient elution program had to be employed. Interestingly, the passively uptaken compounds having the most favourable Peff populated a specific area of the 2D plots, implying that the affinity for HSA and IAM has to lie in specific ranges in order for a compound to be satisfactorily absorbed from the intestinal lumen. Although these results should be regarded as preliminary, this work paves an entirely new and unprecedented way to profile pharmaceutically relevant compounds for their in vivo absorption and distribution potential.
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13
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den Uijl MJ, Schoenmakers PJ, Pirok BWJ, van Bommel MR. Recent applications of retention modelling in liquid chromatography. J Sep Sci 2020; 44:88-114. [PMID: 33058527 PMCID: PMC7821232 DOI: 10.1002/jssc.202000905] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/02/2020] [Accepted: 10/12/2020] [Indexed: 11/18/2022]
Abstract
Recent applications of retention modelling in liquid chromatography (2015–2020) are comprehensively reviewed. The fundamentals of the field, which date back much longer, are summarized. Retention modeling is used in retention‐mechanism studies, for determining physical parameters, such as lipophilicity, and for various more‐practical purposes, including method development and optimization, method transfer, and stationary‐phase characterization and comparison. The review focusses on the effects of mobile‐phase composition on retention, but other variables and novel models to describe their effects are also considered. The five most‐common models are addressed in detail, i.e. the log‐linear (linear‐solvent‐strength) model, the quadratic model, the log–log (adsorption) model, the mixed‐mode model, and the Neue–Kuss model. Isocratic and gradient‐elution methods are considered for determining model parameters and the evaluation and validation of fitted models is discussed. Strategies in which retention models are applied for developing and optimizing one‐ and two‐dimensional liquid chromatographic separations are discussed. The review culminates in some overall conclusions and several concrete recommendations.
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Affiliation(s)
- Mimi J den Uijl
- Analytical Chemistry Group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.,Centre for Analytical Sciences Amsterdam (CASA), Amsterdam, The Netherlands
| | - Peter J Schoenmakers
- Analytical Chemistry Group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.,Centre for Analytical Sciences Amsterdam (CASA), Amsterdam, The Netherlands
| | - Bob W J Pirok
- Analytical Chemistry Group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.,Centre for Analytical Sciences Amsterdam (CASA), Amsterdam, The Netherlands
| | - Maarten R van Bommel
- Analytical Chemistry Group, van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands.,Centre for Analytical Sciences Amsterdam (CASA), Amsterdam, The Netherlands.,University of Amsterdam, Faculty of Humanities, Conservation and Restoration of Cultural Heritage, Amsterdam, The Netherlands
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14
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Nakov N, Acevska J, Brezovska K, Kavrakovski Z, Petkovska R, Dimitrovska A. Characterization of physicochemical properties of substances using chromatographic separation methods. MAKEDONSKO FARMACEVTSKI BILTEN 2020. [DOI: 10.33320/maced.pharm.bull.2020.66.03.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Natalija Nakov
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
| | - Jelena Acevska
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
| | - Katerina Brezovska
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
| | - Zoran Kavrakovski
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
| | - Rumenka Petkovska
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
| | - Aneta Dimitrovska
- Faculty of Pharmacy, Ss. Cyril and Methodius University, Mother Theresa 47, 1000 Skopje, R. North Macedonia
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15
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Deineka VI, Nguyen AV, Deineka LA. Model of a Reversed Phase Grafted on Silica Gel. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419120057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Elmansi H, Nasr JJ, Rageh AH, El-Awady MI, Hassan GS, Abdel-Aziz HA, Belal F. Assessment of lipophilicity of newly synthesized celecoxib analogues using reversed-phase HPLC. BMC Chem 2019; 13:84. [PMID: 31384831 PMCID: PMC6661952 DOI: 10.1186/s13065-019-0607-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/29/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Lipophilicity is a physicochemical property of an essential importance in medicinal chemistry; therefore, fast and reliable measurement of lipophilicity will affect greatly the drug discovery process. RESULTS A series of N-benzenesulfonamide-1H-pyrazoles, oximes and hydrazones as celecoxib analogues was investigated with regard to their retention behavior using reversed-phase high performance liquid chromatography (RP-HPLC). The mobile phases employed for this study consist of a mixture of water and methanol in different proportions. In addition, the stationary phase utilized for this separation was C18 silanized silica gel and using 200 nm as a detection wavelength. The retention behavior of the investigated compounds was determined based on practical determination of log k at different concentrations of methanol (as an organic modifier) in the mobile phase ranging from 60 to 80%. It was observed that the retention of these compounds (expressed as log k) decreased in a linear manner with increasing the concentration of methanol. High correlation coefficients (more than 0.90 in most cases) were obtained for the relationship between the volume fraction of the organic solvent and the retention values represented as log k w. A comparative evaluation was carried out between chromatographically-obtained lipophilicity parameters (represented as lipophilicity chromatographic index log k w or isocratic chromatographic hydrophobicity index, φ 0) and the computationally calculated log P values (miLogP, ALOGP, ACD/Labs and ALOGPs). CONCLUSION It was found that a good correlation exists between the experimental and computed log P values. In the future, these results can give a deep insight about the anti-inflammatory and analgesic activity of the newly synthesized compounds.
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Affiliation(s)
- Heba Elmansi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Jenny Jeehan Nasr
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Azza H. Rageh
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526 Egypt
| | - Mohamed I. El-Awady
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Ghada S. Hassan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
| | - Hatem A. Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Centre, Dokki, 12622 Egypt
| | - Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516 Egypt
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17
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Oh WY, Ambigaipalan P, Shahidi F. Preparation of Quercetin Esters and Their Antioxidant Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10653-10659. [PMID: 31464427 DOI: 10.1021/acs.jafc.9b04154] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Quercetin, a polyphenolic compound, is widely distributed in plants and has numerous health benefits. However, its hydrophilicity can compromise its use in lipophilic systems. For this reason, quercetin was esterified with 12 different fatty acids as their acyl chlorides with varying chain lengths and degrees of unsaturation. Two monoesters (Q-3'-O-monoester and Q-3-O-monoester) and four diesters (Q-7,3'-O-diester, Q-3',4'-O-diester, Q-3,3'-O-diester, and Q-3,4'-O-diester) were the major products as was shown by HPLC-MS and 1H-NMR data. The lipophilicity of quercetin derivatives was calculated; this was found to increase with fatty acid chain length. The antioxidant potential of quercetin and its derivatives was evaluated by using DPPH radical and ABTS radical cation scavenging activity; quercetin showed the highest radical scavenging activity among all tested samples. Despite the decrease of antioxidant activity in this study, the derivatives may show better antioxidant activity in lipophilic media and display improved absorption and bioavailability in the body once consumed.
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Affiliation(s)
- Won Young Oh
- Department of Biochemistry , Memorial University of Newfoundland , St. John's , Newfoundland and Labrador , Canada A1B 3X9
| | - Priyatharini Ambigaipalan
- Department of Biochemistry , Memorial University of Newfoundland , St. John's , Newfoundland and Labrador , Canada A1B 3X9
| | - Fereidoon Shahidi
- Department of Biochemistry , Memorial University of Newfoundland , St. John's , Newfoundland and Labrador , Canada A1B 3X9
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18
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Kempińska D, Chmiel T, Kot-Wasik A, Mróz A, Mazerska Z, Namieśnik J. State of the art and prospects of methods for determination of lipophilicity of chemical compounds. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Numviyimana C, Chmiel T, Kot-Wasik A, Namieśnik J. Study of pH and temperature effect on lipophilicity of catechol-containing antioxidants by reversed phase liquid chromatography. Microchem J 2019. [DOI: 10.1016/j.microc.2018.10.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Fang Z, Cordes DB, Slawin AMZ, O'Hagan D. Fluorine containing cyclopropanes: synthesis of aryl substituted all-cis 1,2,3-trifluorocyclopropanes, a facially polar motif. Chem Commun (Camb) 2019; 55:10539-10542. [DOI: 10.1039/c9cc05749h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The syntheses of substituted all-cis-1,2,3-trifluorocyclopropanes are described for the first time.
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Affiliation(s)
- Zeguo Fang
- University of St Andrews
- School of Chemistry
- North Haugh
- UK
| | | | | | - David O'Hagan
- University of St Andrews
- School of Chemistry
- North Haugh
- UK
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21
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Artim CM, Phan NN, Alabi CA. Effect of Composition on Antibacterial Activity of Sequence-Defined Cationic Oligothioetheramides. ACS Infect Dis 2018; 4:1257-1263. [PMID: 29750860 DOI: 10.1021/acsinfecdis.8b00079] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In response to the urgent need for new antibiotic development strategies, antimicrobial peptides and their synthetic mimetics are being investigated as promising alternatives to traditional antibiotics. To facilitate their development into clinically viable candidates, we need to understand what molecular features and physicochemical properties are needed to induce cell death. Within the context of sequence-defined oligothioetheramides (oligoTEAs), we explore the impact of the cationic pendant group and backbone hydrophobicity on the potency and selectivity of antibacterial oligoTEAs. Through antibacterial, cytotoxicity, membrane destabilization, and membrane depolarization assays, we find a strong dependency on the nature of the cationic group and improved selectivity toward bacteria by tuning backbone hydrophobicity. In particular, compounds with the guanidinium headgroup are more potent than those with amines. Finally, we identify a promising oligoTEA, PDT-4G, with enhanced activity in vitro (minimum inhibitory concentration (MIC) ∼ 0.78 μM) and moderate activity in a mouse thigh infection model of methicillin-resistant Staphylococcus aureus. The studies outlined in this work provide insights into the effect of macromolecular physicochemical properties on antibacterial potency. This knowledge base will be vital for researchers engaged in the ongoing development of clinically viable antibacterial agents.
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Affiliation(s)
- Christine M. Artim
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, United States
| | - Ngoc N. Phan
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, United States
| | - Christopher A. Alabi
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14853, United States
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22
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Investigation of Hydro-Lipophilic Properties of N-Alkoxyphenylhydroxynaphthalenecarboxamides †. Molecules 2018; 23:molecules23071635. [PMID: 29973562 PMCID: PMC6099728 DOI: 10.3390/molecules23071635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/25/2018] [Accepted: 07/01/2018] [Indexed: 12/17/2022] Open
Abstract
The evaluation of the lipophilic characteristics of biologically active agents is indispensable for the rational design of ADMET-tailored structure⁻activity models. N-Alkoxy-3-hydroxynaphthalene-2-carboxanilides, N-alkoxy-1-hydroxynaphthalene-2-carboxanilides, and N-alkoxy-2-hydroxynaphthalene-1-carboxanilides were recently reported as a series of compounds with antimycobacterial, antibacterial, and herbicidal activity. As it was found that the lipophilicity of these biologically active agents determines their activity, the hydro-lipophilic properties of all three series were investigated in this study. All 57 anilides were analyzed using the reversed-phase high-performance liquid chromatography method for the measurement of lipophilicity. The procedure was performed under isocratic conditions with methanol as an organic modifier in the mobile phase using an end-capped non-polar C18 stationary reversed-phase column. In the present study, a range of software lipophilicity predictors for the estimation of clogP values of a set of N-alkoxyphenylhydroxynaphthalenecarboxamides was employed and subsequently cross-compared with experimental parameters. Thus, the empirical values of lipophilicity (logk) and the distributive parameters (π) were compared with the corresponding in silico characteristics that were calculated using alternative methods for deducing the lipophilic features. To scrutinize (dis)similarities between the derivatives, a PCA procedure was applied to visualize the major differences in the performance of molecules with respect to their lipophilic profile, molecular weight, and violations of Lipinski’s Rule of Five.
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23
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Saranjampour P, Armbrust K. Repeatability of n-octanol/water partition coefficient values between liquid chromatography measurement methods. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15111-15119. [PMID: 29557045 DOI: 10.1007/s11356-018-1729-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
The n-octanol/water partition coefficient (KOW) is a physical/chemical property that is extensively used for regulatory and environmental risk and exposure assessments. The KOW value can estimate various chemical properties such as water solubility, bioavailability, and toxicity using quantitative structure-activity relationships which demands an accurate knowledge of this property. The present investigation aims to compare outcomes of three commonly cited methods of KOW measurement in the literature for six hydrophobic chemicals with insecticidal functions as well as highly volatile petroleum constituents. This measurement has been difficult to obtain for the selected pyrethroid insecticides, cypermethrin, and bifenthrin and is a novel measurement for the latter: polycyclic aromatic sulfur heterocycles, dibenzothiophene (DBT), and three of its alkyl derivatives except for DBT. The KOW values were obtained using two liquid chromatographic methods with isocratic and gradient programming, and the slow-stirring method following OECD 117 and 123 guidelines, respectively. The mean log KOW values of bifenthrin, cypermethrin, DBT, methyl-DBT, dimethyl-DBT, and diethyl-DBT were 8.4 ± 0.1, 6.0 ± 0.3, 4.8 ± 0.0, 5.4 ± 0.1, 6.0 ± 0.1, and 6.8 ± 0.0 using the HPLC method with gradient programing. The KOW values were significantly reproducible within a method, however, not between the methods. Results suggest assessing a chemical's property and environmental risk and exposure solely based on the KOW value should be practiced with caution.
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Affiliation(s)
- Parichehr Saranjampour
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Energy, Coast and Environment Building, Baton Rouge, LA, 70803, USA.
| | - Kevin Armbrust
- Department of Environmental Sciences, College of the Coast and Environment, Louisiana State University, Energy, Coast and Environment Building, Baton Rouge, LA, 70803, USA
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24
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Rodil A, Bosisio S, Ayoup MS, Quinn L, Cordes DB, Slawin AMZ, Murphy CD, Michel J, O'Hagan D. Metabolism and hydrophilicity of the polarised 'Janus face' all- cis tetrafluorocyclohexyl ring, a candidate motif for drug discovery. Chem Sci 2018; 9:3023-3028. [PMID: 29732086 PMCID: PMC5916015 DOI: 10.1039/c8sc00299a] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 02/17/2018] [Indexed: 01/07/2023] Open
Abstract
The metabolism and polarity of the all-cis tetra-fluorocyclohexane motif is explored in the context of its potential as a motif for inclusion in drug discovery programmes. Biotransformations of phenyl all-cis tetra-, tri- and di- fluoro cyclohexanes with the human metabolism model organism Cunninghamella elegans illustrates various hydroxylated products, but limited to benzylic hydroxylation for the phenyl all-cis tetrafluorocyclohexyl ring system. Evaluation of the lipophilicities (log P) indicates a significant and progressive increase in polarity with increasing fluorination on the cyclohexane ring system. Molecular dynamics simulations indicate that water associates much more closely with the hydrogen face of these Janus face cyclohexyl rings than the fluorine face owing to enhanced hydrogen bonding interactions with the polarised hydrogens and water.
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Affiliation(s)
- Andrea Rodil
- EaStChem School of Chemistry , University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST , UK .
| | - Stefano Bosisio
- EaStChem School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK .
| | - Mohammed Salah Ayoup
- EaStChem School of Chemistry , University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST , UK . .,Department of Chemistry , Faculty of Science , Alexandria University , P.B. 426 Ibrahimia , Egypt
| | - Laura Quinn
- UCD School of Biomolecular and Biomedical Sciences , University College Dublin , Belfield , Dublin , Ireland .
| | - David B Cordes
- EaStChem School of Chemistry , University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST , UK .
| | - Alexandra M Z Slawin
- EaStChem School of Chemistry , University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST , UK .
| | - Cormac D Murphy
- UCD School of Biomolecular and Biomedical Sciences , University College Dublin , Belfield , Dublin , Ireland .
| | - Julien Michel
- EaStChem School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK .
| | - David O'Hagan
- EaStChem School of Chemistry , University of St Andrews , North Haugh, St Andrews, Fife KY16 9ST , UK .
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25
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Giaginis C, Tsopelas F, Tsantili-Kakoulidou A. The Impact of Lipophilicity in Drug Discovery: Rapid Measurements by Means of Reversed-Phase HPLC. Methods Mol Biol 2018; 1824:217-228. [PMID: 30039409 DOI: 10.1007/978-1-4939-8630-9_12] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lipophilicity constitutes a vital physicochemical property in drug design as it is connected with pharmacodynamic and pharmacokinetic properties as well as toxicological aspects of candidate drugs. Traditional partitioning experiments to determine n-octanol-water coefficients are laborious and time-consuming, while they cannot be reliably performed for highly lipophilic or compounds undergoing degradation. Alternatively, lipophilicity of candidate drugs can be accurately and reproducibly determined using reversed-phase liquid chromatography. In this chapter, the details of protocols for lipophilicity assessment using reversed-phase HPLC, under conditions which provide the best simulation of n-octanol-water partition coefficients, are described.
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Affiliation(s)
- Constantinos Giaginis
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, Myrina, Lemnos, Greece
| | - Fotios Tsopelas
- Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Anna Tsantili-Kakoulidou
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, Athens, Greece.
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26
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Thomson CJ, Zhang Q, Al-Maharik N, Bühl M, Cordes DB, Slawin AMZ, O’Hagan D. Fluorinated cyclopropanes: synthesis and chemistry of the aryl α,β,β-trifluorocyclopropane motif. Chem Commun (Camb) 2018; 54:8415-8418. [PMID: 29999054 DOI: 10.1039/c8cc04964e] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A general route to aryl α,β,β-trifluorocyclopropanes is reported and aryl oxidation gave the corresponding α,β,β-trifluorocyclopropane carboxylic acid.
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Affiliation(s)
| | - Qingzhi Zhang
- EaStCHEM School of Chemistry
- University of St. Andrews
- St. Andrews
- UK
| | - Nawaf Al-Maharik
- EaStCHEM School of Chemistry
- University of St. Andrews
- St. Andrews
- UK
- Alistiqlal University
| | - Michael Bühl
- EaStCHEM School of Chemistry
- University of St. Andrews
- St. Andrews
- UK
| | - David B. Cordes
- EaStCHEM School of Chemistry
- University of St. Andrews
- St. Andrews
- UK
| | | | - David O’Hagan
- EaStCHEM School of Chemistry
- University of St. Andrews
- St. Andrews
- UK
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27
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Greber KE, Ciura K, Belka M, Kawczak P, Nowakowska J, Bączek T, Sawicki W. Characterization of antimicrobial and hemolytic properties of short synthetic cationic lipopeptides based on QSAR/QSTR approach. Amino Acids 2017; 50:479-485. [PMID: 29264738 PMCID: PMC5852172 DOI: 10.1007/s00726-017-2530-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/12/2017] [Indexed: 01/04/2023]
Abstract
In this study, we investigated the influence of molecular descriptors of cationic lipopeptides on their antimicrobial activity and hemolytic properties. The quantitative structure-activity relationship and quantitative structure-property relationship models were constructed. The antimicrobial, hemolytic and retention data were used as dependent variable and structural parameters as the independent ones. The obtained results suggest that the chromatographic indexes can be employed for prediction of antibacterial activity and that lipopeptides present nonspecific interaction between erythrocytes and bacterial membranes.
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Affiliation(s)
- Katarzyna E Greber
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland.
| | - Krzesimir Ciura
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Mariusz Belka
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Piotr Kawczak
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Joanna Nowakowska
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Wiesław Sawicki
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
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28
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Determination of reversed-phase high performance liquid chromatography based octanol-water partition coefficients for neutral and ionizable compounds: Methodology evaluation. J Chromatogr A 2017; 1528:25-34. [DOI: 10.1016/j.chroma.2017.10.064] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/27/2017] [Accepted: 10/26/2017] [Indexed: 01/01/2023]
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29
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Padrtova T, Marvanova P, Odehnalova K, Kubinova R, Parravicini O, Garro A, Enriz RD, Humpa O, Oravec M, Mokry P. Synthesis, Analysis, Cholinesterase-Inhibiting Activity and Molecular Modelling Studies of 3-(Dialkylamino)-2-hydroxypropyl 4-[(Alkoxy-carbonyl)amino]benzoates and Their Quaternary Ammonium Salts. Molecules 2017; 22:molecules22122048. [PMID: 29168793 PMCID: PMC6149889 DOI: 10.3390/molecules22122048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/08/2017] [Accepted: 11/21/2017] [Indexed: 11/16/2022] Open
Abstract
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis. Software-calculated data provided the background needed to compare fifteen new resulting compounds by their physicochemical properties. The acid dissociation constant (pKa) and lipophilicity index (log P) of tertiary amines were determined; while quaternary ammonium salts were characterized by software-calculated lipophilicity index and surface tension. Biological evaluation aimed at testing acetylcholinesterase and butyrylcholinesterase-inhibiting activity of synthesized compounds. A possible mechanism of action of these compounds was determined by molecular modelling study using combined techniques of docking; molecular dynamics simulations and quantum mechanics calculations.
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Affiliation(s)
- Tereza Padrtova
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1, 61242 Brno, Czech Republic.
| | - Pavlina Marvanova
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1, 61242 Brno, Czech Republic.
| | - Klara Odehnalova
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1, 61242 Brno, Czech Republic.
| | - Renata Kubinova
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1, 61242 Brno, Czech Republic.
| | - Oscar Parravicini
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis-IMIBIO-SL-CONICET, Chacabuco 915, San Luis 5700, Argentina.
| | - Adriana Garro
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis-IMIBIO-SL-CONICET, Chacabuco 915, San Luis 5700, Argentina.
| | - Ricardo D Enriz
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis-IMIBIO-SL-CONICET, Chacabuco 915, San Luis 5700, Argentina.
| | - Otakar Humpa
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500 Brno, Czech Republic.
| | - Michal Oravec
- Global Change Research Institute CAS, Belidla 986/4a, 60300 Brno, Czech Republic.
| | - Petr Mokry
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences, Palackeho 1, 61242 Brno, Czech Republic.
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Santos Á, Soares JX, Cravo S, Tiritan ME, Reis S, Afonso C, Fernandes C, Pinto MMM. Lipophilicity assessement in drug discovery: Experimental and theoretical methods applied to xanthone derivatives. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1072:182-192. [PMID: 29175698 DOI: 10.1016/j.jchromb.2017.10.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Revised: 10/05/2017] [Accepted: 10/08/2017] [Indexed: 10/18/2022]
Abstract
For the last several years, searching of new xanthone derivatives (XDs) with potential pharmacological activities has remained one of the main areas of interest of our group. The optimization of biological activity and drug-like properties of hits and leads is crucial at early stage of the drug discovery pipeline. Lipophilicity is one of the most important drug-like properties having a great impact in both pharmacokinetics and pharmacodynamics processes. In this work, we describe the lipophilicity of a small library of bioactive XDs, previously synthesized by our group, using different methods: computational, vortex-assisted liquid-liquid microextraction coupled with high-performance liquid chromatography (VALLME-HPLC), reversed-phase high-performance thin layer chromatography (RP-HPTLC), reversed-phase high-performance liquid chromatography (RP-HPLC), and biomembrane model by the partition between micelles and aqueous phase. The different results obtained by the used methods were compared and discussed. The methodologies and data gathered in this study will expand the investigation of lipophilicity of XDs, an important class of compounds in medicinal chemistry.
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Affiliation(s)
- Álvaro Santos
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - José Xavier Soares
- LAQV-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Sara Cravo
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Porto, Matosinhos, Portugal
| | - Maria E Tiritan
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Porto, Matosinhos, Portugal; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra, 1317, 4585-116, Gandra PRD, Portugal
| | - Salette Reis
- UCBIO-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Carlos Afonso
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Porto, Matosinhos, Portugal.
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Porto, Matosinhos, Portugal.
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; Interdisciplinary Center of Marine and Environmental Investigation (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Porto, Matosinhos, Portugal
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Brown OC, Baguña Torres J, Holt KB, Blower PJ, Went MJ. Copper complexes with dissymmetrically substituted bis(thiosemicarbazone) ligands as a basis for PET radiopharmaceuticals: control of redox potential and lipophilicity. Dalton Trans 2017; 46:14612-14630. [PMID: 28703233 DOI: 10.1039/c7dt02008b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper(ii) bis(thiosemicarbazone) derivatives have been used extensively in positron emission tomography (PET) to image hypoxia and blood flow and to radiolabel cells for cell tracking. These applications depend on control of redox potentials and lipophilicity of the bis(thiosemicarbazone) complexes, which can be adjusted by altering peripheral ligand substituents. This paper reports the synthesis of a library of new dissymmetrically substituted bis(thiosemicarbazone) ligands by controlling the condensation reactions between dicarbonyl compounds and 4-substituted-3-thiosemicarbazides or using acetal protection. Copper complexes of the new ligands have been prepared by reaction with copper acetate or via transmetallation of the corresponding zinc complexes, which are convenient precursors for the rapid synthesis of radio-copper complexes. Well-defined structure-activity relationships linking ligand alkylation patterns with redox potential and lipophilicity of the complexes are reported.
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Affiliation(s)
- Oliver C Brown
- University of Kent, School of Physical Sciences, Canterbury CT2 7NH, UK.
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Oh WY, Shahidi F. Lipophilization of Resveratrol and Effects on Antioxidant Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8617-8625. [PMID: 28872859 DOI: 10.1021/acs.jafc.7b03129] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Resveratrol (R), a polyphenol, was structurally modified via esterification with selected fatty acids to expand its potential application in lipophilic foods, drugs, and cosmetics. The esterification was carried out using 12 different fatty acids with varying chain lengths and degrees of unsaturation (C3:0-C22:6). Two monoesters, two diesters, and one triester were identified by high-performance liquid chromatography-mass spectrometry, and the monoesters (R-3-O-monodocosahexaenoate and R-4'-O-monodocosahexaenoate) were structurally confirmed by nuclear magnetic resonance. The lipophilicity of resveratrol and its alkyl esters was calculated using ALOGPS 2.1. Resveratrol exhibited greater antioxidant activity in both 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation scavenging assays. Resveratrol esters with long-chain fatty acids (C18:0 and C18:1) showed higher antioxidant activity in the DPPH radical scavenging assay, whereas short-chain fatty acid (C3:0, C4:0, and C6:0) showed higher antioxidant activity in the ABTS radical cation scavenging assay. The results may imply that resveratrol derivatives could be used in lipophilic media as health beneficial antioxidants.
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Affiliation(s)
- Won Young Oh
- Department of Biochemistry, Memorial University of Newfoundland , St. John's, Newfoundland and Labrador A1B 3X9, Canada
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland , St. John's, Newfoundland and Labrador A1B 3X9, Canada
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Davis CA, Erickson PR, McNeill K, Janssen EML. Environmental photochemistry of fenamate NSAIDs and their radical intermediates. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2017; 19:656-665. [PMID: 28401228 DOI: 10.1039/c7em00079k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fenamates are a class of nonsteroidal anti-inflammatory drugs (NSAIDs) that are not fully removed during wastewater treatment and can be released to surface waters. Here, near-surface photochemical half-lives were evaluated to range from minutes to hours of four fenamates and the closely related diclofenac. While quantum yields for direct photochemical reactions at the water surface vary widely from 0.071 for diclofenac to <0.001 for mefenamic acid, all fenamates showed significant reactivity towards singlet oxygen and hydroxyl radical with bimolecular reaction rate constants of 1.3-2.8 × 107 M-1 s-1 and 1.1-2.7 × 1010 M-1 s-1, respectively. Photodecay rates increased in the presence of dissolved organic matter (DOM) for diclofenac (+19%), tolfenamic acid (+9%), and mefenamic acid (+95%), but decreased for flufenamic acid (-2%) and meclofenamic acid (-14%) after accounting for light screening effects. Fast reaction rate constants of all NSAIDs with model triplet sensitizers were quantified by laser flash photolysis. Here, the direct observation of diphenylamine radical intermediates by transient absorption spectroscopy demonstrates one-electron oxidation of all fenamates. Quenching rate constants of these radical intermediates by ascorbic acid, a model antioxidant, were also quantified. These observations suggest that the balance of oxidation by photoexcited triplet DOM and quenching of the formed radical intermediates by antioxidant moieties determines whether net sensitization or net quenching by DOM occurs in the photochemical degradation of fenamates.
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Affiliation(s)
- Caroline A Davis
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, 8092 Zurich, Switzerland.
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Elsaman T, Aldeeb OAA, Aboul-Fadl T, Hamedelneil EI. Synthesis, characterization and pharmacological evaluation of certain enzymatically cleavable NSAIDs amide prodrugs. Bioorg Chem 2016; 70:144-152. [PMID: 28040207 DOI: 10.1016/j.bioorg.2016.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 12/20/2016] [Indexed: 11/16/2022]
Abstract
The presence of free carboxylic acid group in majority of non-steroidal anti-inflammatory drug (NSAIDs) is responsible from GI irritation. Coupling of the appropriate NSAIDs (diclofenac, naproxen, dexibuprofen and meclofenamic acid) 1-4, respectively with the appropriate amino acid ester 5 using dicyclohexylcarbodiimide afforded prodrugs 6-13. The structures of the prodrugs were verified based on spectral data. Chemical hydrolysis studies performed in three different non enzymatic buffer solutions at pH 1.2, 5.5 and 7.4, as well as in 80% human plasma and 10% rat liver homogenate using HPLC indicate no conversion of prodrugs to their respective NSAID in the studied buffers, while they underwent a reasonable plasma and rat liver homogenate hydrolysis. Furthermore, ulcerogenicity of prodrugs 9 and 12 were studied and results revealed no gastro-ulcerogenic effects.
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Affiliation(s)
- Tilal Elsaman
- Department of Pharmaceutical Chemistry, College of Pharmacy, Omdurman Islamic University, P.O. Box 2587, Khartoum, Sudan.
| | - Omar A A Aldeeb
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Tarek Aboul-Fadl
- Department of Medicinal Chemistry, College of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Elnazeer I Hamedelneil
- Department of Pharmaceutics, College of Pharmacy, Omdurman Islamic University, P.O. Box 2587, Khartoum, Sudan
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Synthesis and Determination of Physicochemical Properties of New 3-(4-Arylpiperazin-1-yl)-2-hydroxypropyl 4-Alkoxyethoxybenzoates. Molecules 2016; 21:molecules21121682. [PMID: 27941622 PMCID: PMC6273861 DOI: 10.3390/molecules21121682] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 11/17/2022] Open
Abstract
Nine new dihydrochloride salts of 3-(4-arylpiperazin-1-yl)-2-hydroxypropyl 4-alkoxyethoxybenzoates were designed and synthesized. The physicochemical properties such as lipophilicity index (log kw) and dissociation constant (pKa) were experimentally determined and compared to the software calculated data. The lipophilicity index was determined by means of reversed-phase high performance liquid chromatography (RP-HPLC). The pKa values were determined by means of capillary zone electrophoresis. The "drug-likeness" properties according to the Lipinski Rule of Five and prediction of possible blood-brain barrier penetration were computed and discussed.
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36
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Marciniec K, Bafeltowska J, Maślankiewicz MJ, Buszman E, Boryczka S. Determination of the lipophilicity of quinolinesulfonamides by reversed-phase HPLC and theoretical calculations. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1234394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Krzysztof Marciniec
- Department of Organic Chemistry, The Medical University of Silesia, Sosnowiec, Poland
| | - Jolanta Bafeltowska
- Department of Pharmaceutical Chemistry, The Medical University of Silesia, Sosnowiec, Poland
| | | | - Ewa Buszman
- Department of Pharmaceutical Chemistry, The Medical University of Silesia, Sosnowiec, Poland
| | - Stanisław Boryczka
- Department of Organic Chemistry, The Medical University of Silesia, Sosnowiec, Poland
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37
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Volná T, Motyka K, Hlaváč J. Potential of High-Performance Liquid Chromatography for Distribution Coefficient Determination of 3-Hydroxyquinolin-4(1H)-one Derivatives. Chromatographia 2016. [DOI: 10.1007/s10337-016-3129-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Cardullo N, Pulvirenti L, Spatafora C, Musso N, Barresi V, Condorelli DF, Tringali C. Dihydrobenzofuran Neolignanamides: Laccase-Mediated Biomimetic Synthesis and Antiproliferative Activity. JOURNAL OF NATURAL PRODUCTS 2016; 79:2122-2134. [PMID: 27504537 DOI: 10.1021/acs.jnatprod.6b00577] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The biomimetic synthesis of a small library of dihydrobenzofuran neolignanamides (the natural trans-grossamide (4) and the related compounds 21-28) has been carried out through an eco-friendly oxidative coupling reaction mediated by Trametes versicolor laccase. These products, after complete spectroscopic characterization, were evaluated for their antiproliferative activity against Caco-2 (colon carcinoma), MCF-7 (mammary adenocarcinoma), and PC-3 (prostate cancer) human cells, using an MTT bioassay. The racemic neolignamides (±)-21 and (±)-27, in being the most lipophilic in the series, were potently active, with GI50 values comparable to or even lower than that of the positive control 5-FU. The racemates were resolved through chiral HPLC, and the pure enantiomers were subjected to ECD measurements to establish their absolute configurations at C-2 and C-3. All enantiomers showed potent antiproliferative activity, with, in particular, a GI50 value of 1.1 μM obtained for (2R,3R)-21. The effect of (±)-21 on the Caco-2 cell cycle was evaluated by flow cytometry, and it was demonstrated that (±)-21 exerts its antiproliferative activity by inducing cell cycle arrest and apoptosis.
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Affiliation(s)
- Nunzio Cardullo
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Luana Pulvirenti
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Carmela Spatafora
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Nicolò Musso
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Vincenza Barresi
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Daniele Filippo Condorelli
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
| | - Corrado Tringali
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze Biomediche e Biotecnologiche, Sezione di Biochimica Medica, Università degli Studi di Catania , Viale A. Doria 6, I-95125 Catania, Italy
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39
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Valkó KL. Lipophilicity and biomimetic properties measured by HPLC to support drug discovery. J Pharm Biomed Anal 2016; 130:35-54. [PMID: 27084527 DOI: 10.1016/j.jpba.2016.04.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/05/2016] [Accepted: 04/07/2016] [Indexed: 12/21/2022]
Abstract
HPLC methods that use chromatographic retention times for gaining information about the properties of compounds for the purpose of designing drug molecules are reviewed. Properties, such as lipophilicity, protein binding, phospholipid binding, and acid/base character can be incorporated in the design of molecules with the right biological distribution and pharmacokinetic profile to become an effective drug. Standardization of various methodologies is suggested in order to obtain data suitable for inter-laboratory comparison. The published HPLC methods for lipophilicity, acid/base character, protein and phospholipid binding are critically reviewed and compared with each other using the solvation equation approach. One of the most important discussion points is how these data can be used in models and how they can influence the drug discovery process. Therefore, the published models for volume of distribution, unbound volume of distribution and drug efficiency are also discussed. The general relationships between the chemical structure and biomimetic HPLC properties are described in view of ranking and selecting putative drug molecules.
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Affiliation(s)
- Klára L Valkó
- Department of Pharmaceutical and Biological Chemistry, UCL School of Pharmacy, London, United Kingdom; Bio-Mimetic Chromatography Consultancy, 17 Cabot Close, Stevenage, Herts SG2 0ES, United Kingdom.
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40
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Tsopelas F, Vallianatou T, Tsantili-Kakoulidou A. Advances in immobilized artificial membrane (IAM) chromatography for novel drug discovery. Expert Opin Drug Discov 2016; 11:473-88. [DOI: 10.1517/17460441.2016.1160886] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Fotios Tsopelas
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Athens, Zografou, Athens, Greece
- Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Theodosia Vallianatou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Athens, Zografou, Athens, Greece
| | - Anna Tsantili-Kakoulidou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Athens, Zografou, Athens, Greece
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41
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Hayata A, Itoh H, Matsutaka S, Inoue M. Dual Chemical Modification of a Polytheonamide Mimic: Rational Design and Synthesis of Ion-Channel-Forming 48-mer Peptides with Potent Cytotoxicity. Chemistry 2016; 22:3370-3377. [DOI: 10.1002/chem.201504632] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Atsushi Hayata
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroaki Itoh
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shoko Matsutaka
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; Hongo Bunkyo-ku Tokyo 113-0033 Japan
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42
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Behnam MAM, Graf D, Bartenschlager R, Zlotos DP, Klein CD. Discovery of Nanomolar Dengue and West Nile Virus Protease Inhibitors Containing a 4-Benzyloxyphenylglycine Residue. J Med Chem 2015; 58:9354-70. [PMID: 26562070 DOI: 10.1021/acs.jmedchem.5b01441] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The dengue virus (DENV) and West Nile Virus (WNV) NS2B-NS3 proteases are attractive targets for the development of dual-acting therapeutics against these arboviral pathogens. We present the synthesis and extensive biological evaluation of inhibitors that contain benzyl ethers of 4-hydroxyphenylglycine as non-natural peptidic building blocks synthesized via a copper-complex intermediate. A three-step optimization strategy, beginning with fragment growth of the C-terminal 4-hydroxyphenylglycine to the benzyloxy ether, followed by C- and N-terminal optimization, and finally fragment merging generated compounds with in vitro affinities in the low nanomolar range. The most promising derivative reached Ki values of 12 nM at the DENV-2 and 39 nM at the WNV proteases. Several of the newly discovered protease inhibitors yielded a significant reduction of dengue and West Nile virus titers in cell-based assays of virus replication, with an EC50 value of 3.4 μM at DENV-2 and 15.5 μM at WNV for the most active analogue.
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Affiliation(s)
- Mira A M Behnam
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University , Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Dominik Graf
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University , Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Ralf Bartenschlager
- Department of Infectious Diseases, Molecular Virology, Heidelberg University , Im Neuenheimer Feld 345, 69120 Heidelberg, Germany.,German Center for Infection Research, Heidelberg University , Im Neuenheimer Feld 345, 69120 Heidelberg, Germany
| | - Darius P Zlotos
- Department of Pharmaceutical Chemistry, The German University in Cairo , New Cairo City, 11835 Cairo, Egypt
| | - Christian D Klein
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University , Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
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43
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Synthesis, in vitro antioxidant activity, and physicochemical properties of novel 4,5-dihydro-1H-1,2,4-triazol-5-one derivatives. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.02.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Tosti T, Šegan S, Milić D, Radoičić A, Tešić Ž, Milojković-Opsenica D. Estimation of Lipophilicity of Some Polyoxygenated Steroids by the Means of Normal-Phase Thin-Layer Chromatography. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1028287] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Tomislav Tosti
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Sandra Šegan
- ICTM – Department of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Dragana Milić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | | | - Živoslav Tešić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
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45
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Liang C, Lian HZ. Recent advances in lipophilicity measurement by reversed-phase high-performance liquid chromatography. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.02.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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(E)-2-Benzylidenebenzocyclanones: part XIII—(E)/(Z)-Isomerization of some cyclic chalcone analogues. Effect of ring size on lipophilicity of geometric isomers. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1463-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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47
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Han SY, Liang C, Yu HM, Qiao JQ, Ge X, Lian HZ. Influence of n-octanol in mobile phase on QSRRs of lipophilicity and retention mechanism of acidic and basic compounds in RP-HPLC. RSC Adv 2015. [DOI: 10.1039/c5ra02326b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Effect ofn-octanol on retention behavior, mechanism and QSRRs of ionizable compounds in RP-HPLC.
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Affiliation(s)
- Shu-ying Han
- College of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing 210023
- China
- State Key Laboratory of Analytical Chemistry for Life Science
| | - Chao Liang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry & Chemical Engineering and Center of Materials Analysis
- Nanjing University
- Nanjing 210093
- China
| | - Hui-min Yu
- College of Pharmacy
- Nanjing University of Chinese Medicine
- Nanjing 210023
- China
| | - Jun-qin Qiao
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry & Chemical Engineering and Center of Materials Analysis
- Nanjing University
- Nanjing 210093
- China
| | - Xin Ge
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry & Chemical Engineering and Center of Materials Analysis
- Nanjing University
- Nanjing 210093
- China
| | - Hong-zhen Lian
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry & Chemical Engineering and Center of Materials Analysis
- Nanjing University
- Nanjing 210093
- China
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48
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Spatafora C, Barresi V, Bhusainahalli VM, Di Micco S, Musso N, Riccio R, Bifulco G, Condorelli D, Tringali C. Bio-inspired benzo[k,l]xanthene lignans: synthesis, DNA-interaction and antiproliferative properties. Org Biomol Chem 2014; 12:2686-701. [PMID: 24647864 DOI: 10.1039/c3ob42521e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work twelve benzo[k,l]xanthene lignans were synthesized by biomimetic, Mn-mediated oxidative coupling of caffeic esters and amides. These compounds, bearing different flexible pendants at position C1/C2 of the aromatic core, interact with DNA in a dual mode, as confirmed by DF-STD NMR analysis and molecular docking: the planar core acts as a base pair intercalant, whereas the flexible pendants act as minor groove binders. Their antiproliferative activity was evaluated on a panel of six tumor cell lines: HT-29, Caco-2, HCT-116 (human colon carcinoma), H226, A549 (human lung carcinoma), and SH-SY5Y (human neuroblastoma). All compounds under study, except 29, resulted in activity against one or more cell lines, and the markedly lipophilic esters 13 and 28 showed the highest activity. Compound 13 was more active than the anticancer drug 5-fluorouracil (5-FU) towards HCT-116 (colon, GI50 = 3.16 μM) and H226 (lung, GI50 = 4.33 μM) cell lines.
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Affiliation(s)
- Carmela Spatafora
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, I-95125 Catania, Italy.
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49
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Dołowy M, Pyka A. Lipophilicity Study of Salicylic and Acetylsalicylic Acids Using Both Experimental and Calculations Methods. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.913527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Małgorzata Dołowy
- a Department of Analytical Chemistry, Faculty of Pharmacy , Medical University of Silesia in Katowice , Sosnowiec , Poland
| | - Alina Pyka
- a Department of Analytical Chemistry, Faculty of Pharmacy , Medical University of Silesia in Katowice , Sosnowiec , Poland
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Caiali E, Casoni D, Ionita P, David V, Sârbu C. PARABENS LIPOPHILICITY DETERMINATION WITH MOBILE PHASES CONTAINING LOW AND MEDIUM HYDROPHOBIC ALCOHOLS. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.830270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Edvin Caiali
- a Department of Analytical Chemistry , University of Bucharest, Faculty of Chemistry , Bucharest , Romania
| | - Dorina Casoni
- b Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering , Cluj Napoca , Romania
| | - Petre Ionita
- c Department of Organic Chemistry , University of Bucharest, Faculty of Chemistry , Bucharest , Romania
| | - Victor David
- a Department of Analytical Chemistry , University of Bucharest, Faculty of Chemistry , Bucharest , Romania
| | - Costel Sârbu
- b Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering , Cluj Napoca , Romania
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