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Soltani Rad MN, Behrouz S, Atashbasteh E, Hashemi SS. Butyl methyl imidazolium silica sulfate (BMIm)SS: A novel hybrid nano-catalyst for highly efficient synthesis of new 1,2-diol monoesters of ibuprofen as the novel prodrugs of ibuprofen having potent analgesic property. Bioorg Chem 2020; 107:104570. [PMID: 33373759 DOI: 10.1016/j.bioorg.2020.104570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/04/2020] [Accepted: 12/16/2020] [Indexed: 11/25/2022]
Abstract
The fabrication, characterization of butyl methyl imidazolium silica sulfate [BMIm]SS as a novel nano hybrid catalyst and its application in synthesis of new ibuprofen (IBP) 1,2-diol mono esters were described. [BMIm]SS catalyzed the reaction of IBP with epoxides to afford the new IBP 1,2-diol mono esters in good to excellent yields. The products were tested in vivo for the analgesic properties on female mice using formalin test. The test results revealed that most compounds, in particular compounds 1h, 1k and 1o displayed potent analgesic activity compare to IBP as a reference drug. No mortality was observed due to the toxicity of the synthesized compounds. The docking analysis was conducted that confirmed the strong binding affinity of active compounds to active site of murine cyclooxygenase-2 (COX-2) enzyme compare to IBP. The in silico pharmacokinetic profile, drug likeness and toxicity predictions were carried out for all compounds which determined that 1h can be suggested as an appropriate future drug candidate.
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Affiliation(s)
- Mohammad Navid Soltani Rad
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313, Iran.
| | - Somayeh Behrouz
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313, Iran.
| | - Esmaeil Atashbasteh
- Medicinal Chemistry Research Laboratory, Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313, Iran
| | - Seyedeh-Sara Hashemi
- Burn and Wound Healing Research Center, Division of Food and Nutrition, Shiraz University of Medical Sciences, Shiraz, Iran
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Dolanbay T, Makav M, Gul HF, Karakurt E. The effect of diclofenac sodium intoxication on the cardiovascular system in rats. Am J Emerg Med 2020; 46:560-566. [PMID: 33272872 DOI: 10.1016/j.ajem.2020.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES Diclofenac sodium (DS) is a widely used nonsteroidal anti-inflammatory drug. Although its high doses are known to cause toxic effects in many tissues including liver and kidney, the effects on the cardiovascular system (CVS) have not been fully elucidated yet. Therefore, this study aimed to investigate the effect of DS on CVS. METHODS The Control group did not receive medication; however, a single dose of 240 mg/kg DS was administered orally to the DS group. Electrocardiography (ECG) measurements were performed in all animals before (0thhour) and after (1st,6th,12th,24thhour) intoxication. After 24 h, All animals were sacrificed. Biochemical (malondialdehyde [MDA], and glutathione (GSH), Apelin, Elabela, Meteorin, Endoglin, Keap1, and Nrf2) and histopathological analyzes were performed on heart tissue samples. RESULTS ECG results showed that there was a statistically significant increase in QTc, QRS, and heart rate at the 12th and 24th hours in the DS group. The biochemical analysis showed that GSH, Apelin, Keap1, and NRF2 values decreased significantly while Meteorin and Endoglin levels increased in the DS group. When histopathological results were evaluated, distinct lesions were observed in the DS group. CONCLUSION In conclusion, high doses of DS intake can cause adverse effects on and damage to CVS.
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Affiliation(s)
- Turgut Dolanbay
- Kafkas University, Faculty of Medicine, Department of Medical Emergency, Kars, Turkey.
| | - Mustafa Makav
- Kafkas University, Faculty of Veterinary Medicine, Department of Physiology, Kars, Turkey
| | - Huseyin Fatih Gul
- Kafkas University, Faculty of Medicine, Department of Medical Biochemistry, Kars, Turkey
| | - Emin Karakurt
- Kafkas University, Faculty of Veterinary Medicine, Department of Pathology, Kars, Turkey
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Bazyari-Delavar S, Badalkhani-Khamseh F, Ebrahim-Habibi A, Hadipour NL. Investigation of host-guest interactions between polyester dendrimers and ibuprofen using density functional theory (DFT). COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112983] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chis AA, Dobrea C, Morgovan C, Arseniu AM, Rus LL, Butuca A, Juncan AM, Totan M, Vonica-Tincu AL, Cormos G, Muntean AC, Muresan ML, Gligor FG, Frum A. Applications and Limitations of Dendrimers in Biomedicine. Molecules 2020; 25:E3982. [PMID: 32882920 PMCID: PMC7504821 DOI: 10.3390/molecules25173982] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 12/11/2022] Open
Abstract
Biomedicine represents one of the main study areas for dendrimers, which have proven to be valuable both in diagnostics and therapy, due to their capacity for improving solubility, absorption, bioavailability and targeted distribution. Molecular cytotoxicity constitutes a limiting characteristic, especially for cationic and higher-generation dendrimers. Antineoplastic research of dendrimers has been widely developed, and several types of poly(amidoamine) and poly(propylene imine) dendrimer complexes with doxorubicin, paclitaxel, imatinib, sunitinib, cisplatin, melphalan and methotrexate have shown an improvement in comparison with the drug molecule alone. The anti-inflammatory therapy focused on dendrimer complexes of ibuprofen, indomethacin, piroxicam, ketoprofen and diflunisal. In the context of the development of antibiotic-resistant bacterial strains, dendrimer complexes of fluoroquinolones, macrolides, beta-lactamines and aminoglycosides have shown promising effects. Regarding antiviral therapy, studies have been performed to develop dendrimer conjugates with tenofovir, maraviroc, zidovudine, oseltamivir and acyclovir, among others. Furthermore, cardiovascular therapy has strongly addressed dendrimers. Employed in imaging diagnostics, dendrimers reduce the dosage required to obtain images, thus improving the efficiency of radioisotopes. Dendrimers are macromolecular structures with multiple advantages that can suffer modifications depending on the chemical nature of the drug that has to be transported. The results obtained so far encourage the pursuit of new studies.
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Affiliation(s)
| | - Carmen Dobrea
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 2A Lucian Blaga St., 550169 Sibiu, Romania; (A.A.C.); (A.M.A.); (L.L.R.); (A.B.); (A.M.J.); (M.T.); (A.L.V.-T.); (G.C.); (A.C.M.); (M.L.M.); (F.G.G.); (A.F.)
| | - Claudiu Morgovan
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 2A Lucian Blaga St., 550169 Sibiu, Romania; (A.A.C.); (A.M.A.); (L.L.R.); (A.B.); (A.M.J.); (M.T.); (A.L.V.-T.); (G.C.); (A.C.M.); (M.L.M.); (F.G.G.); (A.F.)
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Parlak AE, Cakmak H, Sandal S, Yılmaz B, Sekerci M, Karagöz Genc Z, Tuzcu M, Karatepe M. Evaluation of antioxidant and antiproliferative activities of 1,2-bis (p-amino-phenoxy) ethane derivative Schiff bases and metal complexes. J Biochem Mol Toxicol 2018; 33:e22247. [PMID: 30431697 DOI: 10.1002/jbt.22247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/04/2018] [Accepted: 09/07/2018] [Indexed: 11/06/2022]
Abstract
In this study, the effects of the two Schiff base derivatives and their metal complexes were tested for MDA concentration, which is an indicator of lipid peroxidation, antioxidant vitamin A, vitamin E, and vitamin C levels in cell culture. A comparison was performed among the groups and it was observed that MDA, vitamin A, vitamin E, and vitamin C concentrations were statistically changed. According to the results, all compounds caused a significant oxidative stress without Zn complexes. Moreover, Mn(II), Cu(II), Zn(II), and Ni(II) complexes of Schiff bases derived from a condensation of 1,2-bis (p-aminophenoxy) ethane with naphthaldehydes and 4-methoxy benzaldehyde were examined in terms of antitumor activity against MCF-7 human breast cancer and L1210 murine leukemia cells. Furthermore, the derivatives were tested for antioxidative and prooxidative effects on MCF-7 breast cancer cells. The compounds which were tested revealed that there was an antitumor activity for MCF-7 and L 1210 cancer cells. Also, some of the compounds induced oxidative harmful.
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Affiliation(s)
- Akif Evren Parlak
- Department of Environmental Technology, Firat University, Keban Vocational School of Higher Education, Programme of Environmental Protection and Control, Elazig, Turkey
| | - Haluk Cakmak
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Suleyman Sandal
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Bayram Yılmaz
- Department of Physiology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - Memet Sekerci
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Zuhal Karagöz Genc
- Department of Metallurgy and Materials, Faculty of Engineering, Adiyaman University, Adıyaman, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Mustafa Karatepe
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
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Dilek E, Caglar S, Erdogan K, Caglar B, Sahin O. Synthesis and characterization of four novel palladium(II) and platinum(II) complexes with 1-(2-aminoethyl)pyrrolidine, diclofenac and mefenamic acid: In vitro effect of these complexes on human serum paraoxanase1 activity. J Biochem Mol Toxicol 2018; 32:e22043. [PMID: 29512227 DOI: 10.1002/jbt.22043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 01/10/2023]
Abstract
In this study, the effects of four novel mononuclear palladium(II) and platinum(II) complexes on the activity of human serum paraoxanase1 were examined. First, four novel mononuclear palladium(II) and platinum(II) complexes were synthesized with a nitrogen donor ligand 1-(2-aminoethyl)pyrrolidine and nonsteroidal anti-inflammatory drugs diclofenac, mefenamic acid. These complexes were characterized by spectroscopic, thermal, and elemental analyses. The crystal structures of complex [Pd(2-amepyr)2 ](dicl)2 1 and [Pd(2-amepyr)2 ](mef)2 3 were determined by X-ray crystallography. Then, paraoxonase1 enzyme was purified from human serum. The effects of these complexes on enzyme were evaluated in vitro. The complexes consist of the cationic unit and the counterions. The diclofenac and mefenamic acid acted as a counterion in the complexes. It was observed that all the complexes were stable up to high temperatures. These complexes, even at low doses, inhibited the activity of the enzyme with different inhibition mechanisms.
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Affiliation(s)
- Esra Dilek
- Faculty of Pharmacy, Department of Biochemistry, Erzincan University, Erzincan, Turkey
| | - Sema Caglar
- Faculty of Sciences and Arts, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Kübra Erdogan
- Institute of Science and Technology, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Bülent Caglar
- Faculty of Sciences and Arts, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Onur Sahin
- Scientific and Technological Research Application and Research Center, Sinop University, Sinop, Turkey
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Pedro-Hernández LD, Martínez-Klimova E, Cortez-Maya S, Mendoza-Cardozo S, Ramírez-Ápan T, Martínez-García M. Synthesis, Characterization, and Nanomedical Applications of Conjugates between Resorcinarene-Dendrimers and Ibuprofen. NANOMATERIALS 2017; 7:nano7070163. [PMID: 28665319 PMCID: PMC5535229 DOI: 10.3390/nano7070163] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/16/2017] [Accepted: 06/26/2017] [Indexed: 12/24/2022]
Abstract
Ibuprofen has been reported to possess anticancer activity. In the present work, four ibuprofen conjugates of resorcinarene-Polyamidoamine PAMAM-dendrimers were synthesized with eight or 16 ibuprofen moieties. The ibuprofen was released from the dendrimers in a dependent manner. The drug-conjugated nanoresorcinarene-dendrimers showed higher cellular uptake than free ibuprofen. In vitro cytotoxicity studies were performed with free ibuprofen and with the synthesized conjugates in U251, PC-3, K-562, HCT-15, MCF-7, SKLU-1, and MDA U251 (human glioblastoma), PC-3 (human prostatic adenocarcinoma), K-562 (human chronic myelogenous leukemia cells), HCT-15 (human colorectal adenocarcinoma), MCF-7 (human mammary adenocarcinoma), SKLU-1 (human lung adenocarcinoma), and MDA-MB-231 (human mammary adenocarcinoma) cancer cell lines by different cytotoxicity assays. Ibuprofen conjugates of the first and second generations showed significant cytotoxic effects towards the human glioblastoma (U251) and human mammary adenocarcinoma (MCF-7, MDA) cell lines. Moreover, the ibuprofen conjugates improved cytotoxicity compared to free ibuprofen. Increased therapeutic efficacy was observed with specific ibuprofen conjugates of the second generation using low doses.
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Affiliation(s)
- Luis D Pedro-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Elena Martínez-Klimova
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Sandra Cortez-Maya
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Sonia Mendoza-Cardozo
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Teresa Ramírez-Ápan
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Marcos Martínez-García
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
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Wang X, Lv L, Bu Z, Yan J, Tong S. Separation of epimeric aromatic acid (-)-menthol esters by countercurrent chromatography using hydroxypropyl-β-cyclodextrin as an additive. J Sep Sci 2017; 40:2045-2053. [PMID: 28244265 DOI: 10.1002/jssc.201700015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/13/2017] [Accepted: 02/19/2017] [Indexed: 12/31/2022]
Abstract
The separation of ten epimeric aromatic acid (-)-menthol esters by countercurrent chromatography with hydroxypropyl-β-cyclodextrin as the mobile phase additive was investigated, and methods for the analysis of all the epimeric esters by reversed-phase high-performance liquid chromatography were established. A biphasic solvent system composed of n-hexane/20-70% methanol containing 50 mmol/L of hydroxypropyl-β-cyclodextrin (1:1, v/v) was selected, which provided high separation factors for five of the epimeric esters, and successful separations by countercurrent chromatography were achieved. The complete separation of five pairs of epimeric ester was obtained with the purity being over 98% for each peak fractions, as determined by high-performance liquid chromatography. The recovery of each analyte from the eluted fractions reached around 80-88%.
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Affiliation(s)
- Xiaoping Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Liqiong Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Zhisi Bu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jizhong Yan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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9
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Redasani VK, Bhalerao OC, Kalaskar MG, Surana SJ. Synthesis and evaluation of novel mutual prodrugs of Piroxicam. ACTA ACUST UNITED AC 2017. [DOI: 10.14805/jphchem.2017.art69] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Therapeutic efficacy of piroxicam can be improved by retarding gastrointestinal side effects by means of temporarily modification of enolic hydroxyl group chemically. The NSAIDs such as aceclofenac, ibuprofen, mefenamic acid and naproxen were selected as promoities with the aim of getting synergistic effect through these well known pharmaco-counter parts. The targeted prodrugs are synthesized successfully and confirmed by characterization. Synthesis involved chlorination of NSAIDs and coupling of this acid chloride with piroxicam through enolic hydroxyl group to get ester derivatives. Mutual prodrugs were evaluated by hydrolysis study at different pH (acidic, neutral, alkaline) using phosphate buffer. Prodrug derivatives were found to be stable at acidic and neutral pH but prone to hydrolysis at alkaline pH. Thus the objective of the presented study was to overcome the undesirable side effects of NSAIDs. Thus, current studies confirms that the mutual prodrug approach can be applied effectively in order to achieve the purpose of raising effectiveness of piroxicam under two lines; firstly, masking of enolic hydroxyl group through acids and converting them to esters and secondly, utilizing the known NSAIDs for achieving the synergistic effect.
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Study of Binding Properties Between Two New Ibuprofen and Naproxen Based Acyl Hydrazone Derivatives and Trypsin. J Fluoresc 2016; 26:113-9. [PMID: 26482593 DOI: 10.1007/s10895-015-1690-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/07/2015] [Indexed: 01/27/2023]
Abstract
Two acyl hydrazone derivatives, AHI and AHN,made from ibuprofen and naproxen-derived hydrazides, were prepared and studied of binding properties with serine protease trypsin by UV-vis absorption and fluorescence quenching at pH 7.4. The results suggest that both hydrazones can interact strongly with trypsin and there are the formation of trypsin-hydrazone complexes. The Stern-Volmer constants, binding constants,binding sites and the corresponding thermodynamic parameters ΔH°, ΔS° and ΔG° were calculated at different temperatures.The effect of common metal ions on the constants was also discussed. The binding modes can be explained on the basis of hydrogen bonds and van der Waals forces. The binding distance(r) ~3 nm between the donor (trypsin) and acceptors (AHI and AHN) was obtained according to Förster's non-radiative energy transfer theory. Moreover, LOD and LOQ of hydrazones were calculated in the presence of trypsin.
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Shahid Islam M, Ahmad S, Attu MR, Foerstering FH, Mahmun Hossain M. Concise Synthesis of 2-Arylpropanoic Acids and Study of Unprecedented Reduction of 3-Hydroxy-2-arylpropenoic Acid Ethyl Ester to 2-Arylpropenoic Acid Ethyl Ester by BH3⋅THF. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201500062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Abstract
Therapeutically potential prodrugs of piroxicam were synthesized by effective masking of enolic hydroxyl group through generation of ester congeners. The reaction facilitated using N,N′-dicyclohexylcarbodiimide coupled with acetic acid, benzoic acid, p-toluic acid, m-toluic acid, and cinnamic acid. Synthesized prodrugs were characterized for confirmation of the said structures. The modification of piroxicam showed better anti-inflammatory activity as evoked by all prodrugs. Interestingly, compound 3e, cinnamic acid ester prodrug, depicted 75 percent inhibition of rat paw edema as compared to 56 percent for parent piroxicam at 6 h of study. The present work proves the applicability not only with increased anti-inflammatory activity, but also with marked attenuation in ulcerogenicity. Novel prodrug 3e, cinnamic acid derivative, was found to be the least ulcerogenic having ulcer index of 0.67 as compared to parent drug piroxicam with 2.67.
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Kawai S, Uchida E, Kondo M, Ohno S, Obata J, Nawata Y, Sugimoto K, Oribe M, Nagaya I. Efficacy and Safety of Ketoprofen Patch in Patients With Rheumatoid Arthritis: A Randomized, Double-Blind, Placebo-Controlled Study. J Clin Pharmacol 2013; 50:1171-9. [DOI: 10.1177/0091270009355813] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Redasani VK, Bari SB. Synthesis and evaluation of mutual prodrugs of ibuprofen with menthol, thymol and eugenol. Eur J Med Chem 2012; 56:134-8. [DOI: 10.1016/j.ejmech.2012.08.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 08/18/2012] [Accepted: 08/20/2012] [Indexed: 10/28/2022]
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Liedtke AJ, Crews BC, Daniel CM, Blobaum AL, Kingsley PJ, Ghebreselasie K, Marnett LJ. Cyclooxygenase-1-selective inhibitors based on the (E)-2'-des-methyl-sulindac sulfide scaffold. J Med Chem 2012; 55:2287-300. [PMID: 22263894 PMCID: PMC3297362 DOI: 10.1021/jm201528b] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Prostaglandins (PGs) are powerful lipid mediators in many physiological and pathophysiological responses. They are produced by oxidation of arachidonic acid (AA) by cyclooxygenases (COX-1 and COX-2) followed by metabolism of endoperoxide intermediates by terminal PG synthases. PG biosynthesis is inhibited by nonsteroidal anti-inflammatory drugs (NSAIDs). Specific inhibition of COX-2 has been extensively investigated, but relatively few COX-1-selective inhibitors have been described. Recent reports of a possible contribution of COX-1 in analgesia, neuroinflammation, or carcinogenesis suggest that COX-1 is a potential therapeutic target. We designed, synthesized, and evaluated a series of (E)-2'-des-methyl-sulindac sulfide (E-DMSS) analogues for inhibition of COX-1. Several potent and selective inhibitors were discovered, and the most promising compounds were active against COX-1 in intact ovarian carcinoma cells (OVCAR-3). The compounds inhibited tumor cell proliferation but only at concentrations >100-fold higher than the concentrations that inhibit COX-1 activity. E-DMSS analogues may be useful probes of COX-1 biology in vivo and promising leads for COX-1-targeted therapeutic agents.
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Affiliation(s)
- Andy J Liedtke
- A. B. Hancock Jr. Memorial Laboratory for Cancer Research, Department of Biochemistry, Vanderbilt Institute of Chemical Biology, Center in Molecular Toxicology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA
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Sujith K, Rao JN, Shetty P, Kalluraya B. Regioselective reaction: Synthesis and pharmacological study of Mannich bases containing ibuprofen moiety. Eur J Med Chem 2009; 44:3697-702. [DOI: 10.1016/j.ejmech.2009.03.044] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 03/11/2009] [Accepted: 03/29/2009] [Indexed: 11/17/2022]
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Fun HK, Yeap CS, Sujith KV, Kalluraya B. N'-[(E)-4-Chloro-benzyl-idene]-2-(4-isobutyl-phen-yl)propanohydrazide. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1196-7. [PMID: 21583068 PMCID: PMC2969596 DOI: 10.1107/s1600536809015906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Accepted: 04/28/2009] [Indexed: 11/10/2022]
Abstract
The asymmetric unit of title compound, C(20)H(23)ClN(2)O, consists of two crystallographically independent mol-ecules (A and B) in which the orientations of the 4-isobutyl-phenyl units are different. The isobutyl group of mol-ecule B is disordered over two positions with occupancies of 0.850 (5) and 0.150 (5). The dihedral angle between the two benzene rings is 88.70 (9)° in mol-ecule A and 89.38 (9)° in mol-ecule B. The independent mol-ecules are linked together into chains along [100] by N-H⋯O and C-H⋯O hydrogen bonds, and by C-H⋯π inter-actions. In the chain, N-H⋯O and C-H⋯O hydrogen bonds generate R(2) (1)(6) ring motifs. In addition, C-H⋯N hydrogen bonds are observed. The presence of pseudosymmetry in the structure suggests the higher symmetry space group Pbca but attempts to refine the structure in this space group resulted in high R (0.119) and wR (0.296) values.
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Fun HK, Kia R, Jebas SR, Sujith KV, Kalluraya B. 1-[2-(4-Isobutyl-phen-yl)propano-yl]thiosemicarbazide. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o621. [PMID: 21582273 PMCID: PMC2968597 DOI: 10.1107/s1600536809006527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 02/23/2009] [Indexed: 11/23/2022]
Abstract
In the title compound, C14H21N3OS, intermolecular N—H⋯O interactions generate ten-membered rings with R22(10) ring motifs, whereas N—H⋯S interactions generate eight, 14- and 16-membered rings with R22(8), R44(14) and R44(16) ring motifs, respectively. There are weak intramolecular N—H⋯π interactions which might influence the conformation of the molecule. The compound has a stereogenic center but the space group is centrosymmetic so the molecule exists as a racemate.
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Fun HK, Chantrapromma S, Sujith KV, Kalluraya B. 3-{1-[4-(2-Methyl-prop-yl)phen-yl]eth-yl}-1-(morpholinometh-yl)-4-(4-nitro-benzyl-ideneamino)-1H-1,2,4-triazole-5(4H)-thione. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o495-6. [PMID: 21582161 PMCID: PMC2968455 DOI: 10.1107/s1600536809003870] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Accepted: 02/02/2009] [Indexed: 11/10/2022]
Abstract
The title ibuprofen-containing Mannich derivative, C(26)H(32)N(6)O(3)S, crystallizes with two independent mol-ecules in the asymmetric unit. The morpholine ring in each mol-ecule adopts a chair conformation. The 1,2,4-triazole ring forms dihedral angles of 2.13 (10) and 75.52 (10)° with the two substituted benzene rings in one mol-ecule, with corresponding values of 19.36 (11)° and 89.03 (10)° in the other. The nitro groups are twisted from the attached benzene ring in each mol-ecule. In the crystal packing, mol-ecules are linked into supra-molecular chains via weak C-H⋯O, C-H⋯N and C-H⋯S inter-actions, and C-H⋯π and N-O⋯π links also occur.
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Zhao X, Tao X, Wei D, Song Q. Pharmacological activity and hydrolysis behavior of novel ibuprofen glucopyranoside conjugates. Eur J Med Chem 2006; 41:1352-8. [PMID: 16806590 DOI: 10.1016/j.ejmech.2006.05.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 05/20/2006] [Accepted: 05/29/2006] [Indexed: 10/24/2022]
Abstract
Novel ester prodrugs (II, III and IV) of ibuprofen (I) were synthesized using alpha-methyl, ethyl and propyl glucopyranoside as promoieties and tested for their anti-inflammatory, analgesic and ulcerogenic activities. Study of their chemical hydrolysis in aqueous buffer (pH 3.0-10.0) showed that these compounds acted as true prodrugs of ibuprofen, giving the ibuprofen and alkyl glucopyranoside. Additionally, all the derivatives studied did cleave rapidly inside the biological system and on oral administration did elicit a pharmacological profile quite similar to that of ibuprofen, but, unlike this drug, they displayed reduced gastric ulceration. In conclusion, these alkyl glucopyranoside esters have promising properties as prodrugs for oral delivery of ibuprofen.
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Affiliation(s)
- Xiangguo Zhao
- State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science and Technology, Shanghai, China
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