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Mittersteiner M, Bonacorso HG, Martins MAP, Zanatta N. Haloacetylated Enol Ethers: a Way Out for the Regioselective Synthesis of Biologically Active Heterocycles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
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Bobrov PS, Kirik SD, Krasnov PO, Lyubyashkin AV, Suboch GA, Tovbis MS. Cyclocondensation of 2‐Hydroxyimino‐1‐(naphthalen‐1‐yl)butane‐1,3‐dione with Alkyl Hydrazines Leading to Substituted 4‐Nitrosopyrazoles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pavel S. Bobrov
- Department of Organic Chemistry and Technology of Organic Substances Reshetnev Siberian State University of Science and Technology 31 Krasnoyarskii Rabochii prospekt Krasnoyarsk 660037 Russian Federation
| | - Sergei D. Kirik
- Department of Inorganic and Physical Chemistry Siberian Federal University, 79 Svobodny Av. Krasnoyarsk 660041 Russian Federation
| | - Pavel O. Krasnov
- Laboratory of Non-Linear Optics and Spectroscopy Siberian Federal University 79 Svobodny Av. Krasnoyarsk 660041 Russian Federation
- Department of Technical Physics Reshetnev Siberian State University of Science and Technology 31 Krasnoyarskii Rabochii prospekt Krasnoyarsk 660037 Russian Federation
| | - Aleksey V. Lyubyashkin
- Department of Organic Chemistry and Technology of Organic Substances Reshetnev Siberian State University of Science and Technology 31 Krasnoyarskii Rabochii prospekt Krasnoyarsk 660037 Russian Federation
| | - Georgiy A. Suboch
- Department of Organic Chemistry and Technology of Organic Substances Reshetnev Siberian State University of Science and Technology 31 Krasnoyarskii Rabochii prospekt Krasnoyarsk 660037 Russian Federation
| | - Mikhail S. Tovbis
- Department of Organic Chemistry and Technology of Organic Substances Reshetnev Siberian State University of Science and Technology 31 Krasnoyarskii Rabochii prospekt Krasnoyarsk 660037 Russian Federation
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Characterization of the Antinociceptive Activity from Stevia serrata Cav. Biomedicines 2020; 8:biomedicines8040079. [PMID: 32272558 PMCID: PMC7235832 DOI: 10.3390/biomedicines8040079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Stevia serrata Cav. (Asteraceae), widely found in Guatemala, is used to treat gastrointestinal problems. The aim of this study was to demonstrate the antinociceptive and anti-inflammatory effects of the essential oil (EO) and the mechanism of action. Methods: EO was tested in chemical (capsaicin- and glutamate-induced licking response) or thermal (hot plate) models of nociception at 10, 30 or 100 mg/kg doses. The mechanism of action was evaluated using two receptor antagonists (naloxone, atropine) and an enzyme inhibitor (L-NAME). The anti-hyperalgesic effect was evaluated using carrageenan-induced nociception and evaluated in the hot plate. Results: All three doses of EO reduced licking response induced by glutamate, and higher doses reduced capsaicin-induced licking. EO also increased area under the curve, similar to the morphine-treated group. The antinociceptive effect induced by EO was reversed by pretreatment of mice with naloxone (1 mg/kg, ip), atropine (1 mg/kg, ip) or L-NAME (3 mg/kg, ip). EO also demonstrated an anti-hyperalgesic effect. The 100 mg/kg dose increased the latency time, even at 1 h after oral administration and this effect has been maintained until the 96th hour, post-administration. Conclusions: Our data suggest that essential oil of S. serrata presents an antinociceptive effect mediated, at least in part, through activation of opioid, cholinergic and nitrergic pathways.
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Giorno TBS, dos Santos CHC, de Carvalho MG, da Silva VC, de Sousa PT, Fernandes PD, Boylan F. Study on the Antinociceptive Activity and Mechanism of Action of Isolated Saponins from Siolmatra brasiliensis (Cogn.) Baill. Molecules 2019; 24:E4584. [PMID: 31847360 PMCID: PMC6943633 DOI: 10.3390/molecules24244584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 11/16/2022] Open
Abstract
Infusions of roots of Siolmatra brasiliensis (Cogn.) Baill, ("taiuiá", "cipó-tauá") are used for toothache pain and ulcers. We aimed to study the antinociceptive effects and identify the possible mechanism of action of this plant and its isolated substances (cayaponoside A1, cayaponoside B4, cayaponoside D, and siolmatroside I). Hydroethanol extract (HE), ethyl acetate fraction (EtOAc), and isolated saponins were evaluated in chemical and thermal models of pain in mice. Animals were orally pretreated and evaluated in the capsaicin- or glutamate-induced licking and in the hot plate tests. The antinociceptive mechanism of action was evaluated using the hot plate test with the following pretreatments: Atropine (cholinergic antagonist), naloxone (opioid antagonist), or L-NAME (nitric oxide synthase inhibitor). All extracts and isolated saponins increased the area under the curve in the hot plate test. Tested substances induced a higher effect than the morphine-treated group. Our data suggest that stems of S. brasiliensis and their isolated substances present antinociceptive effects. Cholinergic and opioidergic pathways seem to be involved in their mechanism of action. Taken together our data corroborate the traditional use of the plant and expands the information regarding its use.
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Affiliation(s)
- Thais Biondino Sardella Giorno
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, Laboratory of Pharmacology of Pain and Inflammation, Rio de Janeiro 21941-902, Brazil
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, Graduate Program in Pharmacology and Medicinal Chemistry, Rio de Janeiro 21941-902, Brazil
| | | | | | | | | | - Patricia Dias Fernandes
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, Laboratory of Pharmacology of Pain and Inflammation, Rio de Janeiro 21941-902, Brazil
- Federal University of Rio de Janeiro, Institute of Biomedical Sciences, Graduate Program in Pharmacology and Medicinal Chemistry, Rio de Janeiro 21941-902, Brazil
| | - Fabio Boylan
- Trinity College Dublin, Trinity Biomedical Sciences Institute, School of Pharmacy and Pharmaceutical Sciences, Dublin 2, Ireland
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Experimental and theoretical study of the acylation reaction of aminopyrazoles with aryl and methoxymethyl substituents. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Thombal RS, Lee YR. Synergistic Indium and Silver Dual Catalysis: A Regioselective [2 + 2 + 1]-Oxidative N-Annulation Approach for the Diverse and Polyfunctionalized N-Arylpyrazoles. Org Lett 2018; 20:4681-4685. [DOI: 10.1021/acs.orglett.8b02008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raju S. Thombal
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Gehrcke M, Sari MHM, Ferreira LM, Barbieri AV, Giuliani LM, Prado VC, Nadal JM, Farago PV, Nogueira CW, Cruz L. Nanocapsules improve indole-3-carbinol photostability and prolong its antinociceptive action in acute pain animal models. Eur J Pharm Sci 2018; 111:133-141. [DOI: 10.1016/j.ejps.2017.09.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/16/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
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8
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Antinociceptive and anti-inflammatory activities of leaf extracts from Annona tomentosa R.E.Fr. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2017; 15:379-387. [DOI: 10.1016/s2095-4964(17)60349-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Buddleja thyrsoides Lam. crude extract presents antinociceptive effect on an arthritic pain model in mice. Biochem J 2017; 474:2993-3010. [DOI: 10.1042/bcj20170008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 12/14/2022]
Abstract
Arthritis is a chronic inflammatory disease which reduces the life quality of affected individuals. Therapeutic tools used for treating inflammatory pain are associated with several undesirable effects. Buddleja thyrsoides Lam., known as ‘Barbasco’ or ‘Cambara’, is mostly used in several disorders and possesses antirheumatic, anti-inflammatory, and analgesic properties. Here, we investigated the antinociceptive and anti-inflammatory effects of the B. thyrsoides crude extract applied orally and topically in acute pain models and an arthritic pain model induced by complete Freund's adjuvant (CFA) paw injection in male mice (25–30 g). The high-performance liquid chromatography (HPLC) of the B. thyrsoides extract crude revealed the presence of the lupeol, stigmasterol, and β-sitosterol. The stability study of the B. thyrsoides gel did not show relevant changes at low temperatures. The oral treatment with the B. thrysoides extract prevented the capsaicin-induced spontaneous nociception and the acetic acid-induced abdominal writhing, but did not alter the thermal threshold in the tail immersion test. The B. thyrsoides antinociceptive effect was not reversed by naloxone in the capsaicin test. The B. thyrsoides oral or topical treatment reversed the CFA-induced mechanical allodynia and thermal hyperalgesia with maximum inhibition (Imax) of 69 ± 6 and 68 ± 5% as well as 78 ± 15 and 87 ± 12%, respectively. Moreover, the topical but not oral treatment inhibited the CFA-induced cell infiltration, but did not reduce the paw edema significantly. The oral treatment with B. thyrsoides did not cause adverse effects. These findings suggest that the oral or topical treatment with B. thyrsoides presents antinociceptive actions in an arthritic pain model without causing adverse effects.
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Ben Ali R, Ben Othman A, Bokri K, Maghraoui S, Hajri A, Ben Akacha A, Dziri C, El May MV. Synthesis and evaluation of analgesic, behavioral effects and chronic toxicity of the new 3,5-diaminopyrazole and its precursor the thiocyanoacetamide. Biomed Pharmacother 2017; 86:109-117. [DOI: 10.1016/j.biopha.2016.11.119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/25/2016] [Accepted: 11/27/2016] [Indexed: 10/20/2022] Open
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Lyubyashkin AV, Efimov VV, Suboch GA, Tovbis MS. Synthesis of new alkoxymethyl-substituted 4-amino-1H-pyrazoles and their acylation. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016100274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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de Carvalho PR, Ropero DR, Pinheiro MM, Fernandes PD, Boylan F. Quinoline Alkaloids Isolated from Choisya Aztec-Pearl and Their Contribution to the Overall Antinociceptive Activity of This Plant. PLoS One 2016; 11:e0164998. [PMID: 27768733 PMCID: PMC5074523 DOI: 10.1371/journal.pone.0164998] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/04/2016] [Indexed: 11/19/2022] Open
Abstract
Choisya 'Aztec-Pearl', a hybrid of Choisya ternata and Choisya dumosa var. arizonica, had the antinociceptive activity in the ethanol extract (EECA) of its leaves evaluated. Two quinoline alkaloids, anhydroevoxine (A) and choisyine (C), isolated from these leaves were also tested. The results obtained pointed out to a very high antinociceptive activity measured by the hot plate model for EECA (at doses of 10, 30 and 100 mg/kg) as well as for A and C (at doses of 1, 3 and 10 mg/kg). The magnitude of the activity was two-fold higher than the one observed for the morphine treated animals for the higher doses of extracts/compounds (30, 100 mg/kg and 3, 10 mg/kg respectively). The mechanism of action for this activity was also investigated and it seems that for EECA as well as A and C, the opiate system plays an important role. Results have also shown that the nitric oxide (NO) system also play a pivotal role in the case of EECA and A while for C it seems that the cholinergic system have some involvement. The acute toxicity was evaluated for EECA with results showing no important toxic effect.
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Affiliation(s)
- Patricia Ribeiro de Carvalho
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Rio de Janeiro, Brazil
| | - Denise Ricoy Ropero
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Mariana Martins Pinheiro
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Rio de Janeiro, Brazil
| | - Patricia Dias Fernandes
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Rio de Janeiro, Brazil
| | - Fabio Boylan
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- * E-mail:
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Pandit RP, Kim SH, Lee YR. Iodine-mediated construction of polyfunctionalized arylazopyrazoles from β-ketoesters or 2-arylpyrazol-3-ones and arylhydrazines. Org Biomol Chem 2016; 14:6996-7000. [PMID: 27356175 DOI: 10.1039/c6ob01158f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes step-economic iodine-mediated construction of functionalized arylazopyrazoles in the presence of catalytic AgNO3 starting from simple β-ketoesters and two equivalents of arylhydrazines. This cascade reaction includes in situα-iodination of β-ketoesters, pyrazol-3-one formation, substitution with a nitrogen nucleophile, and oxidation/aromatization.
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Antinociceptive effect and mechanism of action of isatin, N-methyl isatin and oxopropyl isatin in mice. Life Sci 2016; 151:189-198. [DOI: 10.1016/j.lfs.2016.02.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 02/04/2016] [Accepted: 02/12/2016] [Indexed: 11/20/2022]
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Synthesis of new oxadiazole, pyrazole and pyrazolin-5-one bearing 2-((4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetohydrazide analogs as potential antibacterial and antifungal agents. ANNALES PHARMACEUTIQUES FRANÇAISES 2016; 74:34-44. [DOI: 10.1016/j.pharma.2015.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 07/02/2015] [Accepted: 07/20/2015] [Indexed: 11/20/2022]
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Central Antinociceptive and Mechanism of Action of Pereskia bleo Kunth Leaves Crude Extract, Fractions, and Isolated Compounds. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:915927. [PMID: 26273315 PMCID: PMC4530238 DOI: 10.1155/2015/915927] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 05/26/2015] [Accepted: 06/25/2015] [Indexed: 12/21/2022]
Abstract
Pereskia bleo (Kunth) DC. (Cactaceae) is a plant commonly used in popular medicine in Malaysia. In this work, we evaluate the antinociceptive effect of P. bleo leaf extracts and isolated compounds in central antinociceptive model. Ethanol extract (E), hexane (H), ethyl acetate (EA), or butanol (B) fractions (30, 50, or 100 mg/kg, p.o.), sitosterol (from hexane) and vitexin (from ethyl acetate), were administered to mice. Antinociceptive effect was evaluated in the hot plate and capsaicin- or glutamate-induced licking models. Morphine (1 mg/kg, p.o.) was used as reference drug. Naloxone (1 mg/kg, i.p.), atropine (1 mg/kg, i.p.), and L-nitro arginine methyl ester (L-NAME, 3 mg/kg, i.p.) were administered 30 min earlier (100 mg/kg, p.o.) in order to evaluate the mechanism of the antinociceptive action. Higher dose of B developed an effect significantly superior to morphine-treated group. Naloxone prevented the antinociceptive effect of all fractions. L-NAME demonstrated effect against E, EA, and B. In all fractions, sitosterol and vitexin reduced the licking time after capsaicin injection. Glutamate-induced licking response was blocked by H, EA, and B. Our results indicate that Pereskia bleo fractions, sitosterol and vitexin, possessed a central antinociceptive effect. Part of this effect is mediated by opioid receptors and nitrergic pathway.
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Construction of Multifunctionalized Azopyrazoles by Silver- Catalyzed Cascade Reaction of Diazo Compounds. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500197] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Giorno TBS, Ballard YLL, Cordeiro MS, Silva BV, Pinto AC, Fernandes PD. Central and peripheral antinociceptive activity of 3-(2-oxopropyl)-3-hydroxy-2-oxindoles. Pharmacol Biochem Behav 2015; 135:13-9. [PMID: 25989045 DOI: 10.1016/j.pbb.2015.05.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/02/2015] [Accepted: 05/11/2015] [Indexed: 01/22/2023]
Abstract
Convolutamydine A has been shown to develop a significant antinociceptive effect. Here we demonstrated that new analogues (5-iodo-3-(2-oxopropyl)-3-hydroxy-2-oxindole (5-Iisa), 5-fluoro-3-(2-oxopropyl)-3-hydroxy-2-oxindole (5-Fisa), 5-chloro-3-(2-oxopropyl)-3-hydroxy-2-oxindole (5-Clisa) and 5-methyl-3-(2-oxopropyl)-3-hydroxy-2-oxindole (5-Meisa)), at 0.1-10mg/kg doses, have significant peripheral and central antinociceptive effects in thermal and chemical models of nociception. Oral administered analogues demonstrated more pronounced antinociceptive effects than that obtained with the classical opioid drug morphine (5mg/kg) in the first and second phases of formalin-induced licking. In the tail flick model, 5-Clisa and 5-Meisa antinociceptive effect was almost twice as that observed with the same dose of morphine. The concomitant administration of diverse antagonists and the analogues indicates that 5-Iisa effects involve the activation of opioid pathway. On the other hand, 5-Fisa and 5-Clisa have the participation of opioid, nitrergic, cholinergic adrenergic and serotoninergic pathways and 5-Meisa has the involvement of opioid, serotoninergic and cholinergic pathways. In conclusion, our results suggest that the new four analogues from Convolutamydine A have significant antinociceptive effects in thermal and chemical induced nociception and could be used in development of new drugs to be used in pain treatment with reduced side effects.
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Affiliation(s)
- Thais Biondino Sardella Giorno
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Av. Carlos Chagas Filho, 373, Prédio do CCS, bloco J, sala 10, 21941-902, Rio de Janeiro, Brazil
| | - Yáskara L L Ballard
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Av. Carlos Chagas Filho, 373, Prédio do CCS, bloco J, sala 10, 21941-902, Rio de Janeiro, Brazil
| | - Millena Santos Cordeiro
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Av. Carlos Chagas Filho, 373, Prédio do CCS, bloco J, sala 10, 21941-902, Rio de Janeiro, Brazil
| | - Bárbara V Silva
- Universidade Federal do Rio de Janeiro, Instituto de Química, Rio de Janeiro, Brazil
| | - Angelo C Pinto
- Universidade Federal do Rio de Janeiro, Instituto de Química, Rio de Janeiro, Brazil
| | - Patricia Dias Fernandes
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Av. Carlos Chagas Filho, 373, Prédio do CCS, bloco J, sala 10, 21941-902, Rio de Janeiro, Brazil.
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Synthesis, antimicrobial and antioxidant activities of some 5-pyrazolone based Schiff bases. JOURNAL OF SAUDI CHEMICAL SOCIETY 2015. [DOI: 10.1016/j.jscs.2011.12.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Synthesis and anti-nociceptive, anti-inflammatory activities of new aroyl propionic acid derivatives including N-acylhydrazone motif. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1309-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pinheiro MMG, Radulović NS, Miltojević AB, Boylan F, Dias Fernandes P. Antinociceptive esters of N-methylanthranilic acid: Mechanism of action in heat-mediated pain. Eur J Pharmacol 2014; 727:106-14. [PMID: 24486396 DOI: 10.1016/j.ejphar.2013.12.042] [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: 06/09/2013] [Revised: 11/28/2013] [Accepted: 12/21/2013] [Indexed: 01/23/2023]
Abstract
Recently, we identified a new natural antinociceptive alkaloid ternanthranin, isopropyl N-methylanthranilate (ISOAN), from the plant species Choisya ternata Kunth (Rutaceae). In this work we concentrated on the elucidation of its mechanism of action in comparison with two other esters of this acid (methyl (MAN) and propyl (PAN)). Mice orally pre-treated with ISOAN, MAN or PAN (at 0.3, 1 and 3mg/kg) were less sensitive to chemical or thermal stimuli in different nociception models (formalin-, capsaicin- and glutamate-induced licking response, tail flick and hot plate). All compounds (1 and 3mg/kg) showed significant activity in the peripheral nociception models, as well as a dose-dependent spinal antinociceptive effect in the tail flick model. We observed that glibenclamide was able to reverse the antinociceptive effect of ISOAN in the hot plate model suggesting the involvement of K(+)ATP channels. The antinociceptive effect of MAN and PAN may be related to adrenergic, nitrergic and serotoninergic pathways. In addition, the antinociception of PAN was reverted by naloxone implying that the opioid pathway participates in its activity. The cholinergic and cannabinoid systems were found not be involved in the onset of the antinociceptive effects of any of the esters. In conclusion, isopropyl, methyl and propyl N-methylanthranilates produced significant peripheral and central antinociception at doses lower than that of morphine, the classical opioid analgesic drug, without causing toxicity.
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Affiliation(s)
- Mariana Martins Gomes Pinheiro
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Rio de Janeiro, Brazil
| | - Niko S Radulović
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Ana B Miltojević
- Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
| | - Fabio Boylan
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Patrícia Dias Fernandes
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Dor e da Inflamação, Rio de Janeiro, Brazil
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Trevisan G, Rossato MF, Walker CIB, Oliveira SM, Rosa F, Tonello R, Silva CR, Machado P, Boligon AA, Martins MAP, Zanatta N, Bonacorso HG, Athayde ML, Rubin MA, Calixto JB, Ferreira J. A novel, potent, oral active and safe antinociceptive pyrazole targeting kappa opioid receptors. Neuropharmacology 2013; 73:261-73. [PMID: 23791558 DOI: 10.1016/j.neuropharm.2013.06.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 05/28/2013] [Accepted: 06/06/2013] [Indexed: 11/26/2022]
Abstract
Pyrazole compounds are an intriguing class of compounds with potential analgesic activity; however, their mechanism of action remains unknown. Thus, the goal of this study was to explore the antinociceptive potential, safety and mechanism of action of novel 1-pyrazole methyl ester derivatives, which were designed by molecular simplification, using in vivo and in vitro methods in mice. First, tree 1-pyrazole methyl ester derivatives (DMPE, MPFE, and MPCIE) were tested in the capsaicin test and all presented antinociceptive effect; however the MPClE (methyl 5-trichloromethyl-3-methyl-1H-pyrazole-1-carboxylate) was the most effective. Thus, we selected this compound to assess the effects and mechanisms in subsequent pain models. MPCIE produced antinociception when administered by oral, intraperitoneal, intrathecal and intraplantar routes and was effective in the capsaicin and the acetic acid-induced nociception tests. Moreover, this compound reduced the hyperalgesia in diverse clinically-relevant pain models, including postoperative, inflammatory, and neuropathic nociception in mice. The antinociception produced by orally administered MPClE was mediated by κ-opioid receptors, since these effects were prevented by systemically pre-treatment with naloxone and the κ-opioid receptor antagonist nor-binaltorphimine. Moreover, MPCIE prevented binding of the κ-opioid ligand [(3)H]-CI-977 in vitro (IC₅₀ of 0.68 (0.32-1.4) μM), but not the TRPV1 ([(3)H]-resiniferatoxin) or the α₂-adrenoreceptor ([(3)H]-idazoxan) binding. Regarding the drug-induced side effects, oral administration of MPClE did not produce sedation, constipation or motor impairment at its active dose. In addition, MPCIE was readily absorbed after oral administration. Taken together, these results demonstrate that MPClE is a novel, potent, orally active and safe analgesic drug that targets κ-opioid receptors.
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Affiliation(s)
- Gabriela Trevisan
- Graduate Program in Biological Sciences - Toxicological Biochemistry, Department of Chemistry, Federal University of Santa Maria, 97105-900 Santa Maria, RS, Brazil
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Nones CFM, Reis RC, Jesus CHA, Veronez DADL, Cunha JM, Chichorro JG. Orofacial sensory changes after streptozotocin-induced diabetes in rats. Brain Res 2013; 1501:56-67. [PMID: 23313875 DOI: 10.1016/j.brainres.2013.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 12/06/2012] [Accepted: 01/03/2013] [Indexed: 12/12/2022]
Abstract
Peripheral neuropathy is a common complication of diabetes and is often accompanied by episodes of pain. There is evidence that diabetic neuropathy may affect the trigeminal nerve, altering the transmission of orofacial sensory information. Structural changes in the trigeminal ganglia may be involved in the development of these sensory alterations. Herein, we evaluate the development of orofacial sensory changes after streptozotocin-induced diabetes in rats, and their sensitivity to pregabalin and morphine treatments. Furthermore, stereological analysis of the trigeminal ganglia was performed. Diabetic rats showed similar responses to 1% formalin applied into the upper lip compared to normoglycemic rats on weeks 1, 2 and 4 after streptozotocin. Additionally, there was no difference in the facial mechanical threshold of normoglycemic and diabetic rats, on weeks 1 up to 5 after streptozotocin, while the paw mechanical threshold of diabetic rats was significantly reduced. In contrast, diabetic rats developed long-lasting orofacial heat and cold hyperalgesia. Moreover, stereological analyses revealed significant neuronal loss in the trigeminal ganglia of diabetic compared to normoglycemic rats. Pregabalin treatment (30mg/kg, p.o.) of diabetic rats resulted in marked and prolonged (up to 6h) reduction of heat and cold orofacial hyperalgesia. Likewise, morphine treatment (2.5mg/kg, s.c.) abolished orofacial heat and cold hyperalgesia, but its effect was significant only up to 1h after the administration. In conclusion, the results of the present study demonstrated that streptozotocin-treated rats developed long-lasting orofacial heat and cold hyperalgesia, which is more amenable to reduction by pregabalin than morphine.
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Figueiredo GSM, Zardo RS, Silva BV, Violante FA, Pinto AC, Fernandes PD. Convolutamydine A and synthetic analogues have antinociceptive properties in mice. Pharmacol Biochem Behav 2012; 103:431-9. [PMID: 23046852 DOI: 10.1016/j.pbb.2012.09.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/26/2012] [Accepted: 09/29/2012] [Indexed: 11/28/2022]
Abstract
Convolutamydine A, an oxindole that originated from a marine bryozoan, has several biological effects. In this study, we aimed to investigate the antinociceptive effects of convolutamydine A and two new synthetic analogues. Convolutamydine A and the two analogues were given orally to assess their ability to induce antinociceptive effects. Formalin-induced licking response, acetic acid-induced contortions, and hot plate models were used to characterize the effects of convolutamydine A and its analogues. Convolutamydine A (4,6-bromo-3-(2-oxopropyl)-3-hydroxy-2-oxindole), compound 1 (3-(2-oxopropyl)-3-hydroxy-2-oxindole), and compound 2 (5-bromo-3-(2-oxopropyl)-3-hydroxy-2-oxindole) caused peripheral antinociceptive and anti-inflammatory effects in the acetic acid-induced contortions and the formalin-induced licking models. Supraspinal effects were also observed in the hot plate model and were similar to those obtained with morphine. The peripheral effects were not mediated by the cholinergic or opioid systems. The antinociceptive effects of convolutamydine A seem to be mediated by all three systems (cholinergic, opioid, and nitric oxide systems), and the mechanism of action of compounds 1 and 2 involved cholinergic and nitric oxide-mediated mechanisms. Convolutamydine A and its analogues (compounds 1 and 2) showed good antinociceptive ability after systemic administration in acute pain models. The antinociceptive action mediated by cholinergic, opioid, and nitric oxide systems could explain why convolutamydine A, compound 1, and compound 2 retained their antinociceptive effects. The doses used were similar to the doses of morphine and were much lower than that of acetylsalicylic acid, the classical analgesic and anti-inflammatory drug. In conclusion, convolutamydine A and the two analogues demonstrated antinociceptive effects comparable to morphine's effects.
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Affiliation(s)
- Gabriela S M Figueiredo
- Universidade Federal do Rio de Janeiro, Instituto de Ciências Biomédicas, Laboratório de Farmacologia da Inflamação e do Óxido Nítrico, Brazil
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de Souza A, Lima M, Drewes C, da Silva J, Torres K, Pereira E, de Castro C, Vieira L, Cordeiro M, Richardson M, Gomez R, Romano-Silva M, Ferreira J, Gomez M. Antiallodynic effect and side effects of Phα1β, a neurotoxin from the spider Phoneutria nigriventer: Comparison with ω-conotoxin MVIIA and morphine. Toxicon 2011; 58:626-33. [DOI: 10.1016/j.toxicon.2011.09.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/13/2011] [Accepted: 09/20/2011] [Indexed: 10/17/2022]
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26
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Kumaraswamy MN, Chandrashekhar C, Shivakumar H, Prathima Mathias DA, Mahadevan KM, Vaidya VP. Synthesis and Activity Evaluation of 2-(1-naphtho[2,1-b]furan-2-yl-carbonyl)-3,5-disubstituted-2,3-dihydro-1H-pyrazoles. Indian J Pharm Sci 2011; 70:715-20. [PMID: 21369430 PMCID: PMC3040863 DOI: 10.4103/0250-474x.49090] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 08/01/2008] [Accepted: 11/15/2008] [Indexed: 11/17/2022] Open
Abstract
Ethyl naphtho[2,1-b]furan-2-carboxylate (2) on reaction with hydrazine hydrate in presence of acid catalyst in ethanol medium affords naphtho[2,1-b]furan-2-carbohydrazide (3). The reaction of substituted acetophenones (4a-c) with aromatic aldehydes (5a-e) produces chalcones (6a-o) via the Claisen condensation. The reaction of naphtho[2,1-b]furan-2-carbohydrazide (3) with chalcones (6a-6o) in presence of acetic acid as catalyst in dioxane produces 1-(naphtho[2,1-b]furan-2-yl-carbonyl)-3,5-disubstituted-2,3-dihydro-1H-pyrazoles (7a-o). The structures of newly synthesized compounds have been established by elemental analysis and spectral studies. The compounds 7a-o have been evaluated for their antimicrobial activity and some selected compounds evaluated for antiinflammatory, analgesic, anthelmintic, diuretic and antipyretic activities.
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Affiliation(s)
- M N Kumaraswamy
- Department of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Jnana Sahyadri, Shankaraghatta-577 451, India
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27
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Buriol L, Frizzo CP, Moreira DN, Prola LDT, Marzari MRB, München TS, Zantta N, Bonacorso HG, Martins MAP. An E-factor minimized solvent-free protocol for the preparation of 4,5-dihydro-5-(trifluoromethyl)-1H-pyrazoles. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0464-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pasin J, Ferreira A, Saraiva A, Ratzlaff V, Andrighetto R, Machado P, Marchesan S, Zanette R, Bonacorso H, Zanatta N, Martins M, Ferreira J, Mello C. Antipyretic and antioxidant activities of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles in rats. Braz J Med Biol Res 2010; 43:1193-202. [DOI: 10.1590/s0100-879x2010007500139] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 11/16/2010] [Indexed: 12/21/2022] Open
Affiliation(s)
- J.S.M. Pasin
- Universidade Federal do Rio Grande do Sul, Brasil; Centro Universitário Franciscano, Brasil
| | | | | | | | | | - P. Machado
- Universidade Federal de Santa Maria, Brasil
| | | | | | | | - N. Zanatta
- Universidade Federal de Santa Maria, Brasil
| | | | | | - C.F. Mello
- Universidade Federal do Rio Grande do Sul, Brasil; Universidade Federal de Santa Maria
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30
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Youssef AM, Neeland EG, Villanueva EB, White MS, El-Ashmawy IM, Patrick B, Klegeris A, Abd-El-Aziz AS. Synthesis and biological evaluation of novel pyrazole compounds. Bioorg Med Chem 2010; 18:5685-96. [DOI: 10.1016/j.bmc.2010.06.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 06/04/2010] [Accepted: 06/05/2010] [Indexed: 11/24/2022]
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31
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Martins MA, Moreira DN, Frizzo CP, Campos PT, Longhi K, Marzari MR, Zanatta N, Bonacorso HG. X-ray structure, semi-empirical MO calculations and π-electron delocalization of 1-cyanoacetyl-5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-pyrazoles. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.01.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Synthesis and analgesic effects of 2-(2-carboxyphenylsulfanyl)-N-(4-substitutedphenyl)acetamide derivatives. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9300-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Can ÖD, Özkay ÜD, Kaplancıklı ZA, Öztürk Y. Effects of some 1,3,5-trisubstitued-2-pyrazoline derivatives on depression and anxiety parameters of mice. Arch Pharm Res 2009; 32:1293-9. [DOI: 10.1007/s12272-009-1915-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 06/15/2009] [Accepted: 08/05/2009] [Indexed: 10/20/2022]
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34
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Sauzem PD, Sant'Anna GDS, Machado P, Duarte MMMF, Ferreira J, Mello CF, Beck P, Bonacorso HG, Zanatta N, Martins MAP, Rubin MA. Effect of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles on chronic inflammatory pain model in rats. Eur J Pharmacol 2009; 616:91-100. [PMID: 19540223 DOI: 10.1016/j.ejphar.2009.06.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Revised: 05/27/2009] [Accepted: 06/08/2009] [Indexed: 11/30/2022]
Abstract
Nonsteroidal antiinflammatory drugs (NSAIDs) are commonly used for treatment of arthritis. However, their long-term use has been associated with considerable morbidity, limiting their application. Thus, there remains a need to develop new drugs for the effective and safe relief of chronic inflammatory pain. In this context, the present study was designed to evaluate the antinociceptive and antiedematogenic effects of the 5-trifluoromethyl-4,5-dihydro-1H-pyrazole derivatives EPFCA3 and MPFCA4 after acute (1-1000 micromol/kg) and chronic (100 micromol/kg for 15 days) administration in rats submitted to a model of adjuvant-induced arthritis. We also analyzed some biochemical indicators of toxicity (alanine aminotransferase, aspartate aminotransferase, urea and creatinine levels) after prolonged administration of these compounds. We found that acute and chronic subcutaneuous administration of EPFCA3 and MPFCA4 produces an antinociceptive, but not antiedematogenic, effect on the arthritis animal model induced by complete Freund's adjuvant (CFA). No signs of toxicity were observed in the animals chronically treated with EPFCA3 or MPFCA4. Dipyrone (1-1000 micromol/kg) was used as the positive control and its effect was similar to that of the novel pyrazoles. The activity of tissue myeloperoxidase, the tissue TNF-alpha level and the serum haptoglobin level was increased by intraplantar CFA injection. However, chronic administration of EPFCA3, MPFCA4 or dipyrone was not able to alter the relation between these parameters and inflammation. Our results suggest that EPFCA3 and MPFCA4 are good candidates for the development of new drugs for pain treatment.
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Affiliation(s)
- Patricia D Sauzem
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Oliveira SM, Gewehr C, Dalmolin GD, Cechinel CA, Wentz A, Lourega RV, Sehnem RC, Zanatta N, Martins MAP, Rubin MA, Bonacorso HG, Ferreira J. Antinociceptive Effect of a Novel Tosylpyrazole Compound in Mice. Basic Clin Pharmacol Toxicol 2009; 104:122-9. [DOI: 10.1111/j.1742-7843.2008.00353.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Martins DM, Torres BG, Spohr PR, Machado P, Bonacorso HG, Zanatta N, Martins MAP, Emanuelli T. Antioxidant Potential of New Pyrazoline Derivatives to Prevent Oxidative Damage. Basic Clin Pharmacol Toxicol 2009; 104:107-12. [DOI: 10.1111/j.1742-7843.2008.00346.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Machado P, Campos PT, Lima GR, Rosa FA, Flores AF, Bonacorso HG, Zanatta N, Martins MA. Experimental and calculated structural parameters of 5-trihalomethyl-4,5-dihydro-1H-pyrazole derivatives, novel analgesic agents. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.07.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Antinociceptive action of 4-methyl-5-trifluoromethyl-5-hydroxy-4, 5-dihydro-1H-pyrazole methyl ester in models of inflammatory pain in mice. Life Sci 2008; 83:739-46. [DOI: 10.1016/j.lfs.2008.09.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 09/13/2008] [Accepted: 09/17/2008] [Indexed: 01/06/2023]
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39
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Gaber HM. 5-CARBETHOXY- AND 5-ACETYLPYRAZOLES AS PRECURSORS FOR THE SYNTHESIS OF SOME NOVEL 1-p-CHLOROPHENYLPYRAZOLE-3-CARBONITRILES. ORG PREP PROCED INT 2008. [DOI: 10.1080/00304940809458096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Sauzem PD, Machado P, Rubin MA, da S Sant'anna G, Faber HB, de Souza AH, Mello CF, Beck P, Burrow RA, Bonacorso HG, Zanatta N, Martins MAP. Design and microwave-assisted synthesis of 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles: Novel agents with analgesic and anti-inflammatory properties. Eur J Med Chem 2008; 43:1237-47. [PMID: 17889969 DOI: 10.1016/j.ejmech.2007.07.018] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Revised: 07/12/2007] [Accepted: 07/20/2007] [Indexed: 10/22/2022]
Abstract
In this work, we reported the synthesis and evaluation of the analgesic and anti-inflammatory properties of novel 3- or 4-substituted 5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-1-carboxyamidepyrazoles (where 3-/4-substituent=H/H, Me/H, Et/H, Pr/H, i-Pr/H, Bu/H, t-Bu/H, Ph/H, 4-Br-Ph/H and H/Me) designed in the exploration of the bioisosteric replacement of benzene present in salicylamide with a 5-trifluoromethyl-4,5-dihydro-1H-pyrazole scaffold. Target compounds were synthesized from the cyclocondensation of 4-alkoxy-1,1,1-trifluoromethyl-3-alken-2-ones with semicarbazide hydrochloride through a rapid one-pot reaction via microwave irradiation. In addition to spectroscopic data, the structure of the compounds was supported by X-ray diffraction. Subcutaneous administration of the 5-trifluoromethyl-4,5-dihydro-1H-pyrazoles decreased pain-related behavior during neurogenic and inflammatory phases of the formalin test in mice. Moreover, the more active analgesic compounds (3-/4-=Et/H and H/Me) significantly decreased carrageenan-induced paw edema in mice. The data obtained in this work suggest that the synthesized compounds could be promising candidates for the future development of novel analgesic and anti-inflammatory agents.
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Affiliation(s)
- Patricia D Sauzem
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
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41
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Milano J, Oliveira SM, Rossato MF, Sauzem PD, Machado P, Beck P, Zanatta N, Martins MAP, Mello CF, Rubin MA, Ferreira J, Bonacorso HG. Antinociceptive effect of novel trihalomethyl-substituted pyrazoline methyl esters in formalin and hot-plate tests in mice. Eur J Pharmacol 2007; 581:86-96. [PMID: 18190906 DOI: 10.1016/j.ejphar.2007.11.042] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2007] [Revised: 11/10/2007] [Accepted: 11/21/2007] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to evaluate the antinociceptive potential of four novel pyrazoline methyl ester compounds on chemical and thermal models of pain in mice. The following 5-trihalomethylated-4,5-dihydro-1H-pyrazole methyl ester compounds were tested: 3-methyl-5-trifluoromethyl-(MPF3), 4-methyl-5-trifluoromethyl-(MPF4), 3-methyl-5-trichloromethyl-(MPCl3) and 4-methyl-5-trichloromethyl-(MPCl4). MPF3, MPF4, MPCl3 and MPCl4 (0.03-1.0 mmol/kg) given intraperitoneally decreased neurogenic and inflammatory phases of nociception in the formalin test. Moreover, MPF3, MPF4, MPCl3, MPCl4 (0.1-1.0 mmol/kg) and dipyrone (1.5 mmol/kg) also produced a dose-dependent antinociceptive effect in the hot-plate test. However, MPF3, MPF4, MPCl3 and MPCl4 did not impair motor coordination in the rotarod test or spontaneous locomotion in the open field test. The antinociceptive effect of MPF4 (1.0 mmol/kg, i.p.) was reversed by the opioid receptor antagonist naloxone (2 mg/kg, i.p.), but not by the alpha(2)-adrenergic receptor antagonist yohimbine (0.15 mg/kg, i.p.) or by p-chlorophenylalanine ethyl ester (PCPA, 300 mg/kg, i.p.) treatment. In contrast to morphine (5 mg/kg, i.p.), MPF4 given daily for up to 8 days did not generate a tolerance to its antinociceptive effect. However, similar to morphine (11 mg/kg, i.p.), MPF4 reduced gastrointestinal transit in mice. Taken together these results demonstrate that these novel pyrazoline methyl esters tested may be promising prototypes of additional mild analgesics.
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Affiliation(s)
- Julie Milano
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Centro de Ciências Naturais e Exatas, Brazil
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42
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Tripathi UN, Safi Ahmad M, Venubabu G, Ramakrishna P. Synthesis, spectral and antimicrobial studies of chlorodiorganotin(IV)[3(2′-hydroxyphenyl)-5-(4-substitutedphenyl) pyrazolinates]. J COORD CHEM 2007. [DOI: 10.1080/00958970601183391] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- U. N. Tripathi
- a Department of Chemistry , D.D.U. Gorkhpur University , Gorakhpur, 273 001, UP, India
| | - Mohd. Safi Ahmad
- b School of Studies in Chemistry, Vikram University , Ujjain, 456 010, MP, India
| | - G. Venubabu
- b School of Studies in Chemistry, Vikram University , Ujjain, 456 010, MP, India
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43
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Tripathi UN, Safi Ahmad M, Venubabu G, Ramakrishna P. Synthesis, spectral and antimicrobial studies of triorganotin(IV) 3(2′-hydroxyphenyl)-5-(4-substituted phenyl) pyrazolinates. J COORD CHEM 2007. [DOI: 10.1080/00958970601110865] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- U. N. Tripathi
- a Department of Chemistry , D.D.U. Gorakhpur University , Gorakhpur 273 001, UP, India
| | - M. Safi Ahmad
- b School of Studies in Chemistry , Vikram University , Ujjain 456 010, MP, India
| | - G. Venubabu
- b School of Studies in Chemistry , Vikram University , Ujjain 456 010, MP, India
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Atir R, Mallouk S, Bougrin K, Soufiaoui M, Laghzizil A. Porous Calcium Hydroxyapatite as an Efficient Catalyst for Synthesis of Pyrazolines via 1,3‐Dipolar Cycoloaddition Under Solvent‐Free Microwave Irradiation. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397910500330619] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- R. Atir
- a Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique , Université Mohammed V‐Agdal, Faculté des Sciences , Morocco
| | - S. Mallouk
- a Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique , Université Mohammed V‐Agdal, Faculté des Sciences , Morocco
| | - K. Bougrin
- a Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique , Université Mohammed V‐Agdal, Faculté des Sciences , Morocco
| | - M. Soufiaoui
- a Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique , Université Mohammed V‐Agdal, Faculté des Sciences , Morocco
| | - A. Laghzizil
- b Laboratoire de Chimie Physique Générale , Université Mohammed V‐Agdal, Faculté des Sciences , Morocco
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Prokopp CR, Rubin MA, Sauzem PD, de Souza AH, Berlese DB, Lourega RV, Muniz MN, Bonacorso HG, Zanatta N, Martins MAP, Mello CF. A pyrazolyl-thiazole derivative causes antinociception in mice. Braz J Med Biol Res 2006; 39:795-9. [PMID: 16751986 DOI: 10.1590/s0100-879x2006000600013] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study investigates the antinociceptive effect of the pyrazolyl-thiazole derivative 2-(5-trichloromethyl-5-hydroxy-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-bromophenyl)-5-methylthiazole (B50) in mice. Male albino Swiss mice (30-40 g) were used in the acetic acid-induced abdominal writhes and tail-immersion tests. B50 caused dose-dependent antinociception (8, 23 and 80 micromol/kg, s.c.) in the acetic acid writhing assay (number of writhes: vehicle: 27.69 +/- 6.15; B50 (8 micromol/kg): 16.92 +/- 3.84; B50 (23 micromol/kg): 13.85 +/- 3.84; B50 (80 micromol/kg): 9.54 +/- 3.08; data are reported as means +/- SEM for 9 animals per group). On the other hand, B50 did not cause antinociception in the tail immersion assay. Naloxone (2.75 micromol/kg, s.c.) prevented B50-induced antinociception (number of writhes: vehicle-saline: 31.11 +/- 3.15; vehicle-naloxone: 27.41 +/- 3.70; B50 (80 micromol/kg)-saline: 8.70 +/- 3.33; B50 (80 micromol/kg)-naloxone: 31.84 +/- 4.26; morphine-saline: 2.04 +/- 3.52; morphine-naloxone: 21.11 +/- 4.26; 8-9 animals per group). The removal of the methyl group of the thiazole ring of B50 or substitution of the bromo substituent with the methyl at position 4 of the phenyl group, which is attached to the thiazole ring of B50, resulted in loss of activity, suggesting that these substituents are important for antinociceptive activity. B50 had no effect on spontaneous locomotion or rotarod performance, indicating that the antinociceptive effect of B50 is not related to nonspecific motor effects. The antinociceptive profile of B50 seems to be closer to nonsteroidal anti-inflammatory drugs than to classic opioid agents, since it had no analgesic effect in a thermally motivated test.
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Affiliation(s)
- C R Prokopp
- Laboratório de Neurotoxicidade e Psicofarmacologia, Departamento de Química, Setor de Bioquímica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, RS, Brasil
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46
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Oruç EE, Koçyigit-Kaymakçioglu B, Oral B, Altunbas-Toklu HZ, Kabasakal L, Rollas S. Synthesis of Some Novel Azo Derivatives of 3,5-Dimethly-1-(2-hydroxyethyl)pyrazole as Potent Analgesic Agents. Arch Pharm (Weinheim) 2006; 339:267-72. [PMID: 16586426 DOI: 10.1002/ardp.200500202] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A series of 1-(2-hydroxyethyl)-3,5-dimethylpyrazolylazo derivatives, incorporating thiosemicarbazide 2a-c, 1,3,4-thiadiazole 3a-c, and 1,2,4-triazole-3-thione 4a-c were synthesized. The structure of these novel synthesized compounds 2a-c, 3a-c, and 4a-c was confirmed by spectral analysis. All these compounds were screened for their analgesic activity. Hot-plate and tail-immersion tests were used for the determination of the analgesic activity. Morphine, an analgesic through both spinal and supraspinal pathways, was used as a standard test drug. All compounds were administered at a dose of 100 mg/kg i.p. Among the compounds, 2-(butylamino)-5-[((1-(2-hydroxyethyl)-3,5-dimethylpyrazole-4-yl)azo)phenyl]-1,3,4-thiadiazole 3a and 4-[((1-(2-hydroxyethyl)-3,5-dimethylpyrazole-4-yl)azo)phenyl]-4-(2-phenethyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 4c showed analgesic effects in both tests. Especially 4c exerted strong analgesia starting at 30 min after injection.
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Affiliation(s)
- E E Oruç
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
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Khan SS, Hasan A. SYNTHESIS OF SOME NEW BIOACTIVE 1-N-ACID HYDRAZIDE SUBSTITUTED PYRAZOLINES. HETEROCYCL COMMUN 2006. [DOI: 10.1515/hc.2006.12.5.377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Tripathi UN, Venubabu G, Safi Ahmad M, Rao Kolisetty SS, Srivastava AK. Synthesis, spectral and antimicrobial studies of diorganotin(IV)3(2′-hydroxyphenyl)-5-(4-substituted phenyl) pyrazolinates. Appl Organomet Chem 2006. [DOI: 10.1002/aoc.1074] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
This paper is the 27th consecutive installment of the annual review of research concerning the endogenous opioid system, now spanning over 30 years of research. It summarizes papers published during 2004 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia; stress and social status; tolerance and dependence; learning and memory; eating and drinking; alcohol and drugs of abuse; sexual activity and hormones, pregnancy, development and endocrinology; mental illness and mood; seizures and neurologic disorders; electrical-related activity and neurophysiology; general activity and locomotion; gastrointestinal, renal and hepatic functions; cardiovascular responses; respiration and thermoregulation; and immunological responses.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, USA.
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