1
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He J, Yang Z, Li W, Wei Y, Dai B, Zhao J, Liu P. Pd‐Catalyzed
N
‐Arylations of 3‐Aryl‐1‐tosyl‐1
H
‐pyrazol‐5‐amines with Arylbromides and the Migration of Ts Group. ChemCatChem 2021. [DOI: 10.1002/cctc.202100193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jing He
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Zhen Yang
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Weiwei Li
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Yueting Wei
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Bin Dai
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Jixing Zhao
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
| | - Ping Liu
- School of Chemistry and Chemical Engineering The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Shihezi University Shihezi City 832004 P.R. China
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2
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Khoramjouy M, Rezaee E, Khoshnevis A, Nazari M, Nematpour M, Shahhosseini S, Tabatabai SA, Faizi M. Synthesis of 4,6-diphenylpyrimidin-2-ol derivatives as new benzodiazepine receptor ligands. Bioorg Chem 2021; 109:104737. [PMID: 33631464 DOI: 10.1016/j.bioorg.2021.104737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 10/22/2022]
Abstract
Benzodiazepines (BZDs) have been widely used in neurological disorders such as insomnia, anxiety, and epilepsy. The use of classical BZDs, e.g., diazepam, has been limited due to adverse effects such as interaction with alcohol, ataxia, amnesia, psychological and physical dependence, and tolerance. In the quest for new benzodiazepine agonists with more selectivity and low adverse effects, novel derivatives of 4,6-diphenylpyrimidin-2-ol were designed, synthesized, and evaluated. In this series, compound 2, 4-(2-(benzyloxy)phenyl)-6-(4-fluorophenyl)pyrimidin-2-ol, was the most potent analogue in radioligand binding assay with an IC50 value of 19 nM compared to zolpidem (IC50 = 48 nM), a nonbenzodiazepine central BZD receptor (CBR) agonist. Some compounds with a variety of affinities in radioligand receptor binding assay were selected for in vivo evaluations. Compound 3 (IC50 = 25 nM), which possessed chlorine instead of fluorine in position 4 of the phenyl ring, exhibited an excellent ED50 value in most in vivo tests. Proper sedative-hypnotic effects, potent anticonvulsant activity, appropriate antianxiety effect, and no memory impairment probably served compound 3, a desirable candidate as a benzodiazepine agonist. The pharmacological effects of compound 3 were antagonized by flumazenil, a selective BZD receptor antagonist, confirming the BZD receptors' involvement in the biological effects of the novel ligand.
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Affiliation(s)
- Mona Khoramjouy
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Rezaee
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afshan Khoshnevis
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Nazari
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Manijeh Nematpour
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soraya Shahhosseini
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sayyed Abbas Tabatabai
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mehrdad Faizi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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3
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Devi Priya D, Nandhakumar M, Mohana Roopan S. Pyrazolo[1,5-a]pyridine: Recent synthetic view on crucial heterocycles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1805468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Duraipandi Devi Priya
- Department of Chemistry, Chemistry of Heterocycles & Natural Product Research Laboratory, School of Advanced Science, Vellore, Tamilnadu, India
| | | | - Selvaraj Mohana Roopan
- Department of Chemistry, Chemistry of Heterocycles & Natural Product Research Laboratory, School of Advanced Science, Vellore, Tamilnadu, India
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4
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Metwally NH, Ragab EA, Mohamed MS. Synthesis of some novelN5‐sulfonylated andN1‐alkyated pyrazole derivatives and their antimicrobial activity in conjunction with molecular docking study. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3895] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Nadia H. Metwally
- Department of Chemistry, Faculty of ScienceCairo University Giza Egypt
| | - Eman A. Ragab
- Department of Chemistry, Faculty of ScienceCairo University Giza Egypt
| | - Mona S. Mohamed
- Department of Chemistry, Faculty of ScienceCairo University Giza Egypt
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5
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Solomon VR, Tallapragada VJ, Chebib M, Johnston G, Hanrahan JR. GABA allosteric modulators: An overview of recent developments in non-benzodiazepine modulators. Eur J Med Chem 2019; 171:434-461. [DOI: 10.1016/j.ejmech.2019.03.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/17/2019] [Accepted: 03/17/2019] [Indexed: 01/13/2023]
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6
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Sieghart W, Savić MM. International Union of Basic and Clinical Pharmacology. CVI: GABAA Receptor Subtype- and Function-selective Ligands: Key Issues in Translation to Humans. Pharmacol Rev 2018; 70:836-878. [DOI: 10.1124/pr.117.014449] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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7
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Aggarwal R, Kumar S. 5-Aminopyrazole as precursor in design and synthesis of fused pyrazoloazines. Beilstein J Org Chem 2018; 14:203-242. [PMID: 29441143 PMCID: PMC5789427 DOI: 10.3762/bjoc.14.15] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 01/08/2018] [Indexed: 12/31/2022] Open
Abstract
The condensation of 5-aminopyrazole with various bielectrophilic moieties results in the formation of pyrazoloazines, an interesting array of fused heterocyclic systems. The development of new synthetic routes towards pyrazoloazines for their biological and medicinal exploration is an attractive area for researchers throughout the world. The present review focuses on various synthetic methods developed in the last decade for the synthesis of differently substituted pyrazoloazines by a broad range of organic reactions by means of 5-aminopyrazole as a precursor.
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Affiliation(s)
- Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
| | - Suresh Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
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8
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Mohammadi Ziarani G, Lashgari N, Mostofi M, Mahdavi M. Synthesis, Reaction and Biological Activity of Pyrazolo[5,1-c][1,2,4]benzotriazine 5-Oxides. HETEROCYCLES 2018. [DOI: 10.3987/rev-18-893] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Guerrini G, Ciciani G, Crocetti L, Daniele S, Ghelardini C, Giovannoni MP, Iacovone A, Di Cesare Mannelli L, Martini C, Vergelli C. Identification of a New Pyrazolo[1,5-a]quinazoline Ligand Highly Affine to γ-Aminobutyric Type A (GABAA) Receptor Subtype with Anxiolytic-Like and Antihyperalgesic Activity. J Med Chem 2017; 60:9691-9702. [DOI: 10.1021/acs.jmedchem.7b01151] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gabriella Guerrini
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
| | - Giovanna Ciciani
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
| | - Letizia Crocetti
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
| | - Simona Daniele
- Dipartimento
FARMACIA, Università degli Studi di Pisa, Pisa56126, Italy
| | - Carla Ghelardini
- Dipartimento
NEUROFARBA, Sezione Farmacologia, Università degli Studi di Firenze, Sesto
Fiorentino, Firenze 50019, Italy
| | - Maria Paola Giovannoni
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
| | - Antonella Iacovone
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
| | - Lorenzo Di Cesare Mannelli
- Dipartimento
NEUROFARBA, Sezione Farmacologia, Università degli Studi di Firenze, Sesto
Fiorentino, Firenze 50019, Italy
| | - Claudia Martini
- Dipartimento
FARMACIA, Università degli Studi di Pisa, Pisa56126, Italy
| | - Claudia Vergelli
- Dipartimento
NEUROFARBA, Sezione Farmaceutica e Nutraceutica, Università degli Studi di Firenze, Via Ugo Schiff 6, Sesto
Fiorentino, Firenze 50019, Italy
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10
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Faizi M, Jahani R, Ebadi SA, Tabatabai SA, Rezaee E, Lotfaliei M, Amini M, Almasirad A. Novel 4-thiazolidinone derivatives as agonists of benzodiazepine receptors: Design, synthesis and pharmacological evaluation. EXCLI JOURNAL 2017; 16:52-62. [PMID: 28435427 PMCID: PMC5379113 DOI: 10.17179/excli2016-692] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 11/28/2016] [Indexed: 12/23/2022]
Abstract
A new series of 4-chloro-N-(2-(substitutedphenyl)-4-oxothiazolidin-3-yl)-2-phenoxybenzamide derivatives were designed, synthesized and biologically evaluated as anticonvulsant agents. The designed compounds have the main essential functional groups for binding to the benzodiazepine receptors and 4-thiazolidinone ring as an anticonvulsant pharmacophore. Some of the new synthesized compounds showed considerable anticonvulsant activity in electroshock and pentylenetetrazole-induced lethal convulsion tests. Compound 5i, 4-chloro-N-(2-(4-methoxyphenyl)-4-oxothiazolidin-3-yl)-2-phenoxybenzamide, with the best activity was selected for evaluation of other benzodiazepine pharmacological effects. This compound induced significant sedative-hypnotic activity. However, it does not impair the learning and memory in the experimental condition. Flumazenil was able to antagonize the sedative-hypnotic and anticonvulsant effects of compound 5i indicating that benzodiazepine receptors are highly involved in the pharmacological properties of the novel compounds.
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Affiliation(s)
- Mehrdad Faizi
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Jahani
- Department of Pharmacology and Toxicology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Abbas Ebadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Sayyed Abbas Tabatabai
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Rezaee
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehrnaz Lotfaliei
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Amini
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Almasirad
- Department of Medicinal Chemistry, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
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11
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Faizi M, Dabirian S, Tajali H, Ahmadi F, Zavareh ER, Shahhosseini S, Tabatabai SA. Novel agonists of benzodiazepine receptors: Design, synthesis, binding assay and pharmacological evaluation of 1,2,4-triazolo[1,5-a]pyrimidinone and 3-amino-1,2,4-triazole derivatives. Bioorg Med Chem 2015; 23:480-7. [DOI: 10.1016/j.bmc.2014.12.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/10/2014] [Accepted: 12/11/2014] [Indexed: 02/06/2023]
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12
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Guerrini G, Ciciani G, Bruni F, Selleri S, Martini C, Daniele S, Ghelardini C, Di Cesare Mannelli L, Costanzo A. Development of ligands at γ-aminobutyrric acid type A (GABAA) receptor subtype as new agents for pain relief. Bioorg Med Chem 2011; 19:7441-52. [DOI: 10.1016/j.bmc.2011.10.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/07/2011] [Accepted: 10/14/2011] [Indexed: 10/16/2022]
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13
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Guerrini G, Ciciani G, Bruni F, Selleri S, Melani F, Daniele S, Martini C, Costanzo A. New 3-, 8-disubstituted pyrazolo[5,1-c][1,2,4]benzotriazines useful for studying the interaction with the HBp-3 area (hydrogen bond point area) in the benzodiazepine site on the γ-aminobutyric acid type A (GABAA) receptor. Bioorg Med Chem 2011; 19:3074-85. [DOI: 10.1016/j.bmc.2011.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 04/01/2011] [Accepted: 04/05/2011] [Indexed: 10/18/2022]
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14
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New fluoro derivatives of the pyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide system: evaluation of fluorine binding properties in the benzodiazepine site on γ-aminobutyrric acid type A (GABA(A)) receptor. Design, synthesis, biological, and molecular modeling investigation. J Med Chem 2010; 53:7532-48. [PMID: 20939501 DOI: 10.1021/jm1001887] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the search for potent ligands at the benzodiazepine site on the GABA(A) receptor, new fluoro derivatives of the pyrazolo[5,1-c][1,2,4]benzotriazine system were synthesized to evaluate the importance of the introduction of a fluorine atom in this system. Biological and pharmacological studies indicate that the substitution at position 8 with a trifluoromethyl group confers pharmacological activity due to potential metabolic stability in comparison to inactive 8-methyl substituted analogues. In particular, the compound 3-(2-methoxybenzyloxycarbonyl)-8-trifluoromethylpyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide (21) emerges because of its selective anxiolytic profile without side effects. An analysis of all the newly synthesized compounds in our pharmacophoric map confirms the essential interaction points for binding recognition and the important areas for affinity modulation. The fluorine atom was able to form a hydrogen bond interaction only when it is not in position 3.
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15
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Guerrini G, Ciciani G, Cambi G, Bruni F, Selleri S, Guarino C, Melani F, Montali M, Martini C, Ghelardini C, Norcini M, Costanzo A. Synthesis, in vivo evaluation, and molecular modeling studies of new pyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide derivatives. Identification of a bifunctional hydrogen bond area related to the inverse agonism. J Med Chem 2009; 52:4668-82. [PMID: 19591485 DOI: 10.1021/jm801599a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new series of pyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide 8-alkyloxy-/aryloxy-/arylalkyloxy and 8-aryl-/arylalkylderivatives variously substituted at the 3-position were synthesized and binding studies at the benzodiazepine site on GABA(A) receptor were carried out. The pharmacological profile was identified for compounds 10, 11, 16(+), 16(-), and 17 by considering six potential benzodiazepine actions: motor coordination, anticonvulsant action, spontaneous motility and explorative activity, potential anxiolytic-like effects, mouse learning and memory modulation, and finally, ethanol-potentiating action. Compound 17 stands out as the compound that improves mouse memory processes selectively, safely, and in a statistically significant manner. From a ligand-based pharmacophoric model, we identified a hydrogen bond interaction area HBp-3 near the lipophilic area. This new pharmacophoric model allowed us to identify four structural compound typologies and thus to rationalize the affinity data of all compounds.
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Affiliation(s)
- Gabriella Guerrini
- Dipartimento di Scienze Farmaceutiche, Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente attivi (HeteroBioLab), Università degli Studi di Firenze, Via U. Schiff 6, 50019 Polo Scientifico, Sesto Fiorentino-Firenze, Italy.
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16
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Ciciani G, Coronnello M, Guerrini G, Selleri S, Cantore M, Failli P, Mini E, Costanzo A. Synthesis of new pyrazolo[5,1-c][1,2,4] benzotriazines, pyrazolo[5,1-c]pyrido[4,3-e][1,2,4] triazines and their open analogues as cytotoxic agents in normoxic and hypoxic conditions. Bioorg Med Chem 2008; 16:9409-19. [DOI: 10.1016/j.bmc.2008.09.055] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 09/16/2008] [Accepted: 09/23/2008] [Indexed: 11/30/2022]
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17
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Guerrini G, Ciciani G, Cambi G, Bruni F, Selleri S, Melani F, Montali M, Martini C, Ghelardini C, Norcini M, Costanzo A. Novel 3-aroylpyrazolo[5,1-c][1,2,4]benzotriazine 5-oxides 8-substituted, ligands at GABAA/benzodiazepine receptor complex: Synthesis, pharmacological and molecular modeling studies. Bioorg Med Chem 2008; 16:4471-89. [DOI: 10.1016/j.bmc.2008.02.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 02/13/2008] [Accepted: 02/19/2008] [Indexed: 11/29/2022]
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