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Dolz-Pérez I, Sallam MA, Masiá E, Morelló-Bolumar D, Pérez Del Caz MD, Graff P, Abdelmonsif D, Hedtrich S, Nebot VJ, Vicent MJ. Polypeptide-corticosteroid conjugates as a topical treatment approach to psoriasis. J Control Release 2019; 318:210-222. [PMID: 31843640 DOI: 10.1016/j.jconrel.2019.12.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/18/2019] [Accepted: 12/11/2019] [Indexed: 12/19/2022]
Abstract
Topical treatment of mild-to-moderate psoriasis with corticosteroids suffers from challenges that include reduced drug bioavailability at the desired site of action. The retention of therapeutics within the epidermis can safely treat skin inflammation, scaling, and erythema associated with psoriasis while avoiding possible side effects associated with systemic treatments. We successfully synthesized and characterized a pH-responsive biodegradable poly-L-glutamic acid (PGA)-fluocinolone acetonide (FLUO) conjugate that allows the controlled release of the FLUO to reduce skin inflammation. Additionally, the application of a hyaluronic acid (HA)-poly-L-glutamate cross polymer (HA-CP) vehicle boosted skin permeation. During in vitro and ex vivo analyses, we discovered that PGA-FLUO inhibited pro-inflammatory cytokine release, suggesting that polypeptidic conjugation fails to affect the anti-inflammatory activity of FLUO. Additionally, ex vivo human skin permeation studies using confocal microscopy revealed the presence of PGA-FLUO within the epidermis, but a minimal presence in the dermis, thereby reducing the likelihood of FLUO entering the systemic circulation. Finally, we demonstrated that PGA-FLUO applied within HA-CP effectively reduced psoriasis-associated phenotypes in an in vivo mouse model of human psoriasis while also lowering levels of pro-inflammatory cytokines in tissue and serum. Overall, our experimental results demonstrate that PGA-FLUO within an HA-CP penetration enhancer represents an effective topical treatment for psoriasis.
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Affiliation(s)
- Irene Dolz-Pérez
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av. Eduardo Primo Yúfera 3, Valencia 46012, Spain
| | - Marwa A Sallam
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, El Sultan Hussein St Azarita, Egypt; John A. Paulson school of engineering and applied sciences and Wyss institute for biologically inspired engineering, Harvard University, 52 Oxford St, Cambridge, MA 02138, USA
| | - Esther Masiá
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av. Eduardo Primo Yúfera 3, Valencia 46012, Spain; Screening Platform, Centro de Investigación Príncipe Felipe, Av. Eduardo Primo Yúfera 3, Valencia 46012, Spain
| | - Daniel Morelló-Bolumar
- Polypeptide Therapeutic Solutions S.L. C/ Benjamin Franklin 19 (Paterna), Valencia 46980, Spain
| | - M Dolores Pérez Del Caz
- Servicio de cirugía plástica, Hospital Universitario y Politécnico La Fe, Av. de Fernando Abril Martorell 106, Valencia 46026, Spain
| | - Patrick Graff
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, Königin-Luise Str. 2+4, Berlin 14195, Germany
| | - Doaa Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, El Sultan Hussein St Azarita, Egypt
| | - Sarah Hedtrich
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin, Königin-Luise Str. 2+4, Berlin 14195, Germany; Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, Canada
| | - Vicent J Nebot
- Polypeptide Therapeutic Solutions S.L. C/ Benjamin Franklin 19 (Paterna), Valencia 46980, Spain.
| | - María J Vicent
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av. Eduardo Primo Yúfera 3, Valencia 46012, Spain; Screening Platform, Centro de Investigación Príncipe Felipe, Av. Eduardo Primo Yúfera 3, Valencia 46012, Spain.
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Lu R, Groer C, Kleindl PA, Moulder KR, Huang A, Hunt JR, Cai S, Aires DJ, Berkland C, Forrest ML. Formulation and preclinical evaluation of a toll-like receptor 7/8 agonist as an anti-tumoral immunomodulator. J Control Release 2019; 306:165-176. [PMID: 31173789 DOI: 10.1016/j.jconrel.2019.06.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/21/2019] [Accepted: 06/02/2019] [Indexed: 12/22/2022]
Abstract
The toll-like receptor 7 and 8 (TLR7/8) agonist Resiquimod (R848) has been recognized as a promising immunostimulator for the treatment of cutaneous cancers in multiple clinical trials. However, systemic administration of R848 often results in strong immune-related toxicities while having limited therapeutic effects to the tumor. In the present study, a prodrug-based nanocarrier delivery system was developed that exhibited high therapeutic efficiency. R848 was conjugated to α-tocopherol to constitute an R848-Toco prodrug, followed by formulating with a tocopherol-modified hyaluronic acid (HA-Toco) as a polymeric nano-suspension. In vitro evaluation showed that the delivery system prolonged the release kinetics while maintaining TLR agonist activities. When administered subcutaneously, the nano-suspension formed a depot at the injection site, inducing localized immune responses without systemic expansion. This formulation also suppressed tumor growth and recruited immune cells to the tumor in a murine model of head and neck cancer. In a preclinical canine study of spontaneous mast cell tumors, the treatment led to a 67% response rate (three partial remissions and one complete remission).
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Affiliation(s)
- Ruolin Lu
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America
| | - Chad Groer
- HylaPharm LLC, Lawrence, Kansas, United States of America
| | - Peter A Kleindl
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America
| | - K Ryan Moulder
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America
| | - Aric Huang
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America
| | - Jordan R Hunt
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America
| | - Shuang Cai
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America; HylaPharm LLC, Lawrence, Kansas, United States of America
| | - Daniel J Aires
- HylaPharm LLC, Lawrence, Kansas, United States of America; Division of Dermatology, School of Medicine, The University of Kansas Medical Center, Kansas City, Kansas, United States of America
| | - Cory Berkland
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America; Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas, United States of America
| | - M Laird Forrest
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas, United States of America; HylaPharm LLC, Lawrence, Kansas, United States of America.
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Abu-Fayyad A, Nazzal S. Synthesis, characterization, and in-vitro antitumor activity of the polyethylene glycol (350 and 1000) succinate derivatives of the tocopherol and tocotrienol isomers of Vitamin E. Int J Pharm 2017; 519:145-156. [PMID: 28093324 DOI: 10.1016/j.ijpharm.2017.01.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/05/2017] [Accepted: 01/10/2017] [Indexed: 02/06/2023]
Abstract
Vitamin E refers to a group of saturated tocopherol (T) isomers and the biologically more active unsaturated tocotrienol (T3) isomers. PEGylated α-tocopherol, commercially known as Vitamin E TPGS, has been used as an emulsifier and therapeutic agent for children with vitamin E deficiency. Limited information, however, is available about the PEG conjugates of the tocotrienol isomers of vitamin E. The current work was therefore undertaken to synthesize and characterize the water soluble polyethylene glycol (PEG 350 and 1000) derivatives of T and T3. Yield and the identity of the synthesized products were confirmed by 1H NMR, mass spectroscopy, HPLC, and thermal analysis. The self-assembly of the PEGylated vitamin E isomers in water at critical micelle concentrations (CMC) was further confirmed by size, zeta, and Cryo-TEM image analysis. While stable at pH 7.4, PEG conjugates were found to rapidly hydrolyze at pH 1.2. Our data showed that PEGylated T3 isomers were significantly more active as inhibitors for P-glycoprotein than PEGylated T. The in vitro cytotoxicity of the conjugates was also tested against a large panel of normal and tumorigenic cells. Of the conjugates, γ-T3PGS 1000 and δ-T3PGS 1000 were found to have the least toxicity against non-tumorigenic breast and pancreatic cell lines, which may be advantageous for its use as functional excipients in drug delivery. The results from the current work have demonstrated the feasibility of synthesizing PEGylated conjugates of vitamin E isomers and highlighted the potential use of these conjugates in drug delivery as functional and safer excipients especially for γ-T3PGS 1000 and δ-T3PGS 1000 conjugate.
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Affiliation(s)
- Ahmed Abu-Fayyad
- College of Health and Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Sami Nazzal
- College of Health and Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA; College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
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Lorenzo J, Montaña ÁM. The molecular shape and the field similarities as criteria to interpret SAR studies for fragment-based design of platinum(IV) anticancer agents. Correlation of physicochemical properties with cytotoxicity. J Mol Graph Model 2016; 69:39-60. [PMID: 27567201 DOI: 10.1016/j.jmgm.2016.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/06/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
Abstract
Molecular shape similarity and field similarity have been used to interpret, in a qualitative way, the structure-activity relationships in a selected series of platinum(IV) complexes with anticancer activity. MM and QM calculations have been used to estimate the electron density, electrostatic potential maps, partial charges, dipolar moments and other parameters to correlate the stereo-electronic properties with the differential biological activity of complexes. Extended Electron Distribution (XED) field similarity has been also evaluated for the free 1,4-diamino carrier ligands, in a fragment-based drug design approach, comparing Connolly solvent excluded surface, hydrophobicity field surface, Van der Waals field surface, nucleophilicity field surface, electrophilicity field surface and the extended electron-distribution maxima field points. A consistency has been found when comparing the stereo-electronic properties of the studied series of platinum(IV) complexes and/or the free ligands evaluated and their in vitro anticancer activity.
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Affiliation(s)
- Julia Lorenzo
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Ángel M Montaña
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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Programmed Hydrolysis in Designing Paclitaxel Prodrug for Nanocarrier Assembly. Sci Rep 2015; 5:12023. [PMID: 26166066 PMCID: PMC4499798 DOI: 10.1038/srep12023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 06/11/2015] [Indexed: 11/30/2022] Open
Abstract
Nanocarriers delivering prodrugs are a way of improving in vivo effectiveness and efficiency. For therapeutic efficacy, the prodrug must hydrolyze to its parent drug after administration. Based on the fact that the hydrolysis is impeded by steric hindrance and improved by sufficient polarity, in this study, we proposed the PTX-S-S-VE, the conjugation of paclitaxel (PTX) to vitamin E (VE) through a disulfide bridge. This conjugate possessed the following advantages: first, it can be encapsulated in the VE/VE2-PEG2000/water nanoemulsions because of favorable hydrophobic interactions; second, the nanoemulsions had a long blood circulation time; finally, the concentrated glutathione in the tumor microenvironment could cleave the disulfide bond to weaken the steric hindrance and increase the polarity, promoting the hydrolysis to PTX and increasing the anticancer activity. It was demonstrated in vitro that the hydrolysis of PTX-S-S-VE was enhanced and the cytotoxicity was increased. In addition, PTX-S-S-VE had greater anticancer activity against the KB-3-1 cell line tumor xenograft and the tumor size was smaller after the 4th injection. The present result suggests a new way, use of reduction, to improve the in vivo anticancer activity of a prodrug for nanocarrier delivery by unshielding the ester bond and taking off the steric block.
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Lorenzo J, Delgado A, Montaña ÁM, Mesas JM, Alegre MT, Rodríguez MDC, Avilés FX. Synthesis, biological evaluation and SAR studies of novel bicyclic antitumor platinum(IV) complexes. Eur J Med Chem 2014; 83:374-88. [PMID: 24980119 DOI: 10.1016/j.ejmech.2014.06.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/06/2014] [Accepted: 06/20/2014] [Indexed: 10/25/2022]
Abstract
The present study describes the synthesis, anticancer activity and SAR studies of novel platinum(IV) complexes having 1,2-bis(aminomethyl)carbobicyclic or oxabicyclic carrier ligands, bearing chlorido and/or hydroxido ligands in axial position and chlorido or malonato ligands in equatorial position (labile ligands). These complexes were synthetized with the aim of obtaining new anticancer principles more soluble in water and therefore more bioavailable. Several substitution patterns on the platinum atom have been designed in order to evaluate their antiproliferative activity and to establish structure-activity relationship rules. The synthesis of platinum(IV) complexes with axial hydroxyl ligands on the platinum(IV) were carried out by reaction of K2Pt(OH)2Cl4 with the corresponding diamines. The complexes with axial chlorido ligands on the platinum(IV) atom were synthesized by direct reaction of diamines with K2PtCl6. Carboxylated complexes were synthesized by the substitution reaction of equatorial chlorido ligands by silver dicarboxylates. The most actives complexes were those having malonate as a labile ligand, no matter of the structure of the carrier ligand. Regarding the influence of the structure of the non-labile 1,4-diamine carrier ligand on the cytotoxicity, it was found that the complexes having the more lipophilic and symmetrical bicyclo[2.2.2]octane framework were much more active than those having an oxygen or methylene bridge.
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Affiliation(s)
- Julia Lorenzo
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Aida Delgado
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ángel M Montaña
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Juan M Mesas
- Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus de Lugo, 27002 Lugo, Spain
| | - María-Teresa Alegre
- Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus de Lugo, 27002 Lugo, Spain
| | | | - Francesc-Xavier Avilés
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
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Cielecka-Piontek J, Paczkowska M, Lewandowska K, Barszcz B, Zalewski P, Garbacki P. Solid-state stability study of meropenem - solutions based on spectrophotometric analysis. Chem Cent J 2013; 7:98. [PMID: 23759021 PMCID: PMC3691713 DOI: 10.1186/1752-153x-7-98] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 05/27/2013] [Indexed: 11/10/2022] Open
Abstract
Background B-Lactam antibiotics are still the most common group of chemotherapeutic drugs that are used in the treatment of bacterial infections. However, due to their chemical instability the potential to apply them as oral pharmacotherapeutics is often limited and so it is vital to employ suitable non-destructive analytical methods. Hence, in order to analyze such labile drugs as β-lactam analogs, the application of rapid and reliable analytical techniques which do not require transferring to solutions or using organic solvents, following the current green approach to pharmaceutical analysis, is necessary. The main objective of the present research was to develop analytical methods for the evaluation of changes in meropenem in the solid state during a stability study. Results The UV, FT-IR and Raman spectra of meropenem were recorded during a solid-state stability study. The optimum molecular geometry, harmonic vibrational frequencies, infrared intensities and Raman scattering activities were calculated according to the density-functional theory (DFT/B3LYP method) with a 6-31G(d,p) basis set. As the differences between the observed and scaled wavenumber values were small, a detailed interpretation of the FT-IR and Raman spectra was possible for non-degraded and degraded samples of meropenem. The problem of the overlapping spectra of meropenem and ring-containing degradation products was solved by measuring changes in the values of the first-derivative amplitudes of the zero-order spectra of aqueous solutions of meropenem. Also, molecular electrostatic potential (MEP), front molecular orbitals (FMOs) and the gap potential between highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) were determined. Conclusions Based on the findings of this work, it appears possible to use time-saving and reliable spectrophotometric analytical methods, supported by quantum-chemical calculations, for solid-state stability investigations of meropenem. The methods developed for this study may be considered a novel, green solution to pharmaceutical analysis of labile drugs – an alternative for the recommended chromatographic procedures.
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Affiliation(s)
- Judyta Cielecka-Piontek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland.
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Markovic BD, Vladimirov SM, Cudina OA, Odovic JV, Karljikovic-Rajic KD. A PAMPA assay as fast predictive model of passive human skin permeability of new synthesized corticosteroid C-21 esters. Molecules 2012; 17:480-91. [PMID: 22222907 PMCID: PMC6268546 DOI: 10.3390/molecules17010480] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 12/29/2011] [Accepted: 12/30/2011] [Indexed: 11/18/2022] Open
Abstract
The permeation properties of twenty newly synthesized α-alkoxyalkanoyl and α-aryloxyalkanoyl C-21 esters of standard corticosteroids: Fluocinolone acetonide, dexamethasone, triamcinolone acetonide and hydrocortisone were established using a PAMPA assay (70% silicone oil and 30% isopropyl myristate). The data were compared with parent corticosteroids with addition of mometasone furoate and hydrocortisone acetate. All newly synthesized corticosteroid C-21 esters have effective permeability coefficients higher then -6, mostly followed with high values of retention factors and low permeation. The examined compounds were grouped through relationship between obtained retention factors and permeation parameters (groups I–III). The classification confirmed group I (membrane retentions as well as permeation lower then 30%) for all corticosteroid standards except mometasone furoate, a potent topical corticosteroid which, with high membrane retention (81%) and low permeation (7.7%) fits into group III. The largest number of new synthesized corticosteroids C-21 esters, among them all fluocinolone acetonide C-21 esters, have high membrane retentions (32.4%–86.5%) and low permeations (1.3%–27.1%), fitting in group III. The classification was related to previously obtained anti-inflammatory activity data for the fluocinolone acetonide C-21 esters series. According to the PAMPA results the new synthesized esters could be considered as potential new prodrugs with useful benefit/risk ratio.
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Affiliation(s)
- Bojan D. Markovic
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (S.M.V.); (O.A.C.)
- Author to whom correspondence should be addressed; ; Tel.: +381-113-951-335; Fax: +381-113-972-840
| | - Sote M. Vladimirov
- Author to whom correspondence should be addressed; ; Tel.: +381-113-951-335; Fax: +381-113-972-840
| | - Olivera A. Cudina
- Author to whom correspondence should be addressed; ; Tel.: +381-113-951-335; Fax: +381-113-972-840
| | - Jadranka V. Odovic
- Author to whom correspondence should be addressed; ; Tel.: +381-113-951-335; Fax: +381-113-972-840
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Markovic BD, Vladimirov SM, Cudina OA, Savic VM, Karljikovic-Rajic KD. HPLC EVALUATION OF SOLVOLYSIS OF A NOVEL ESTER FLUOCINOLONE ACETONIDE 21-(2′-PHENOXYPROPIONATE) IN COMPARISON WITH FLUOCINONIDE. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.587223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Bojan D. Markovic
- a Department of Pharmaceutical Chemistry , Faculty of Pharmacy, University of Belgrade , Belgrade, Serbia
| | - Sote M. Vladimirov
- a Department of Pharmaceutical Chemistry , Faculty of Pharmacy, University of Belgrade , Belgrade, Serbia
| | - Olivera A. Cudina
- a Department of Pharmaceutical Chemistry , Faculty of Pharmacy, University of Belgrade , Belgrade, Serbia
| | - Vladimir M. Savic
- b Department of Organic Chemistry , Faculty of Pharmacy, University of Belgrade , Belgrade, Serbia
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