1
|
Khalfaoui M, Chebrouk F, Ziani BE, Bennamane N, Cherfaoui B, Frites W, Valega M, Mendes RF, Paz FAA, Chebout R, Bachari K, Talhi O, Silva AM. Hemi-synthesis, in-vitro and in-silico bioactivities of new chiral-Schiff bases and benzodiazepine derivatives from Ammodaucus leucotrichus(S)-perillaldehyde. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
2
|
Gharbi R, Ben-Youssef M, Martin MT, Mighri Z. Reactivity Studies on a Novel 4-(2-hydroxyphenyl)-1,3-dihydro-1,5-benzodiazepine-2-thione. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/0308234054213410] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The novel 4-(2-hydroxyphenyl)-1,3-dihydro-1,5-benzodiazepine-2-thione (4) has been synthesised and used as precursor to the hitherto unreported 7-methylthio[1]benzopyrano[4,3-c][1,5]-benzodiazepine (7). Hydrazinolysis of 4 gave 5-(2-aminophenylamino)-3-(2-hydroxyphenyl)-1H-pyrazole (9) which with excess of N,N-dimethylformamide dimethylacetal formed the 5-(2-hydroxyphenyl-2H-pyrazol-3-yl)-1H-benzimidazole (10).
Collapse
Affiliation(s)
- Rafik Gharbi
- Laboratoire de Chimie des Substances Naturelles et de Synthèse Organique. 99/Unité de Recherche/12-26, Faculté des Sciences de Monastir 5000, Monastir, Tunisia
| | - Mouna Ben-Youssef
- Laboratoire de Chimie des Substances Naturelles et de Synthèse Organique. 99/Unité de Recherche/12-26, Faculté des Sciences de Monastir 5000, Monastir, Tunisia
| | - Marie-Thérèse Martin
- Institut de Chimie des Substances Naturelles. CNRS, 91190 Gif-sur-Yvette, France
| | - Zine Mighri
- Laboratoire de Chimie des Substances Naturelles et de Synthèse Organique. 99/Unité de Recherche/12-26, Faculté des Sciences de Monastir 5000, Monastir, Tunisia
| |
Collapse
|
3
|
Samigullina AI, Gubaidullin AT, Mustakimova LV, Mamedov VA. Influence of the nature of the substituent on the supramolecular synthon in crystals of benzo[b][1,4]diazepine derivatives. Russ Chem Bull 2015. [DOI: 10.1007/s11172-014-0617-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
4
|
Nikas P, Gatta E, Cupello A, Di Braccio M, Grossi G, Pellistri F, Robello M. Study of the Interaction of 1,4- and 1,5-Benzodiazepines with GABAA Receptors of Rat Cerebellum Granule Cells in Culture. J Mol Neurosci 2015; 56:768-772. [DOI: 10.1007/s12031-015-0495-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 01/13/2015] [Indexed: 10/24/2022]
|
5
|
Cupello A, Di Braccio M, Gatta E, Grossi G, Nikas P, Pellistri F, Robello M. GABA A Receptors of Cerebellar Granule Cells in Culture: Interaction with Benzodiazepines. Neurochem Res 2013; 38:2453-2462. [PMID: 24122079 DOI: 10.1007/s11064-013-1171-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 09/17/2013] [Accepted: 10/01/2013] [Indexed: 11/24/2022]
Abstract
GABAA receptor mediated inhibition plays an important role in modulating the input/output dynamics of cerebellum. A characteristic of cerebellar GABAA receptors is the presence in cerebellar granule cells of subunits such as α6 and δ which give insensitivity to classical benzodiazepines. In fact, cerebellar GABAA receptors have generally been considered a poor model for testing drugs which potentially are active at the benzodiazepine site. In this overview we show how rat cerebellar granule cells in culture may be a useful model for studying new benzodiazepine site agonists. This is based on the pharmacological separation of diazepam-sensitive α1 β2/3 γ2 receptors from those which are diazepam-insensitive and contain the α6 subunit. This is achieved by utilizing furosemide/Zn2+ which block α6 containing and incomplete receptors.
Collapse
Affiliation(s)
- Aroldo Cupello
- Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146, Genoa, Italy,
| | | | | | | | | | | | | |
Collapse
|
6
|
Khodairy A, Abdel-Ghany H, El-Sayed AM, Salah H. Synthesis of New Fused and Spiro 1,5-Benzodiazepines. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200300170] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
7
|
Modulation of native GABAA receptor activity by triazolo 1,5-benzodiazepines. Neuroscience 2013; 243:158-64. [DOI: 10.1016/j.neuroscience.2013.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/16/2013] [Accepted: 04/07/2013] [Indexed: 11/21/2022]
|
8
|
Ben-Cherif W, Gharbi R, Sebai H, Dridi D, Boughattas NA, Ben-Attia M. Neuropharmacological screening of two 1,5-benzodiazepine compounds in mice. C R Biol 2010; 333:214-9. [PMID: 20338539 DOI: 10.1016/j.crvi.2009.09.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 09/24/2009] [Accepted: 09/26/2009] [Indexed: 10/19/2022]
Abstract
This work investigates whether the two 1,5-benzodiazepine compounds: 4-(2-hydroxyphenyl)-1,5-benzodiazepin-2-one (RG0501) and Benzopyrano [4,3-c] 1,5-benzodiazepine (RG0502) have any neuropharmacological activities. Diazepam and Flunitrazepam were used as drug references. The investigational 1,5-BDZ were tested in vivo for potentiating hexobarbital-induced sleep and pentylenetetrazole (PTZ)-induced seizures. Our study demonstrated that the increase of sleep duration was significantly higher with RG0501 as compared to RG0502. However, RG0502 anticonvulsant effect was more pronounced than that of RG0501 in the range dose of 6.25-37.5 mg.kg(-1). From the 50 mg.kg(-1) dose, RG0502 offered a protection against clonic-tonic seizures as well as lethality (p< or =0.05). The results showed that the required doses to obtain a pharmacological activity were more than those of the references. This difference could be related to the lack of specific substituants responsible for the pharmacological activity in the tested compounds.
Collapse
Affiliation(s)
- Wafa Ben-Cherif
- Laboratoire de pharmacologie, faculté de médecine de Monastir, 5019 Monastir, Tunisia
| | | | | | | | | | | |
Collapse
|
9
|
Gatta E, Cupello A, Di Braccio M, Grossi G, Ferruzzi R, Roma G, Robello M. New 1,5-benzodiazepine compounds: activity at native GABA(A) receptors. Neuroscience 2010; 166:917-23. [PMID: 20096335 DOI: 10.1016/j.neuroscience.2010.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 12/21/2009] [Accepted: 01/07/2010] [Indexed: 11/26/2022]
Abstract
Various new 1,5-benzodiazepine compounds were synthesized and tested for their biological activity in terms of effects on GABA(A) receptors of rat cerebellar granules in culture. Their effects were compared to those of a 1,4-benzodiazepine agonist, flunitrazepam and the already known 1,5-benzodiazepine antiepileptic clobazam. The effects were evaluated for the two different GABA(A) receptor populations present in these neurons, one mediating phasic inhibition and the other one mediating tonic inhibition. Many such compounds display a profile of inverse agonist to both GABA(A) receptor populations. One of them presents a profile of full agonist at the component mediating phasic inhibition. Interestingly, substitution of just one oxygen atom in that compound with sulphur in a specific position of a morpholine ring resulted in a remarkable change of activity from full agonist to a probable inverse agonist. This indicates such a position as a proton accepting one for the ligand within the benzodiazepine binding pocket of the relevant GABA(A) receptors. In addition, that position appears to be critical for the pharmacological activity.
Collapse
Affiliation(s)
- E Gatta
- Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146 Italy
| | | | | | | | | | | | | |
Collapse
|
10
|
Affiliation(s)
- Turan Ozturk
- Istanbul Technical University, Science Faculty, Chemistry Department, Organic Chemistry, 34469 Maslak, Istanbul, Turkey.
| | | | | |
Collapse
|
11
|
Di Braccio M, Grossi G, Roma G, Vargiu L, Mura M, Marongiu ME. 1,5-Benzodiazepines. Part XII. Synthesis and biological evaluation of tricyclic and tetracyclic 1,5-benzodiazepine derivatives as nevirapine analogues. Eur J Med Chem 2001; 36:935-49. [PMID: 11755236 DOI: 10.1016/s0223-5234(01)01283-1] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A number of properly substituted 5H-pyrimido[4,5-b][1,5]benzodiazepines (2) and pyrazolo[3,4-b][1,5]benzodiazepines (3 and 4), as well as compounds 5-7, which are derivatives of new tetracyclic systems, were prepared as nevirapine analogues through multistep synthetic routes. The cytotoxic and anti-HIV-1 properties of compounds 2-7 were evaluated in cell-based assays, together with their inhibitory activity against the HIV-1 recombinant reverse transcriptase (rRT) in enzyme assays. The modifications introduced into nevirapine heterocyclic skeleton proved to have a negative effect for the anti-HIV-1 activity. It is worth noting that some of the new derivatives proved to be cytotoxic in the low micromolar range.
Collapse
Affiliation(s)
- M Di Braccio
- Dipartimento di Scienze Farmaceutiche, Università di Genova, Viale Benedetto XV, 3, I-16132 Genoa, Italy
| | | | | | | | | | | |
Collapse
|
12
|
Caccia S, Grossi G, Fracasso C, Nacca A, Cagnotto A, Mennini T, Ghia M, Roma G. Acid-catalysed hydrolysis and benzodiazepine-like properties of 5-(dialkylamino)- and 5-(alkylthio)-substituted 8-chloro-6-phenyl-6H-[1,2,4]triazolol[4,3-a][1,5]benzodiazepines in mice. J Pharm Pharmacol 1998; 50:723-8. [PMID: 9720620 DOI: 10.1111/j.2042-7158.1998.tb07132.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The in-vitro and in-vivo hydrolysis of two benzodiazepine compounds has been studied to evaluate their in-vivo activity in mice. Compounds RL 218 and RL 236, selected as representative examples of N,N-dialkyl-8-chloro-6-phenyl-6H-[1,2,4]triazolo[4,3-a][1,5]benzodiaz epin-5-amines (1) and of their 5-(alkylthio) substituted analogues (2), were rapidly hydrolysed to the corresponding 8-chloro-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,5]benzodiazepin-5(6H )-one 3 (RL 214) in aqueous acidic solution at pH 1.5. This reaction also occurred extensively in mice when compounds RL 218 and RL 236 were given orally but not intraperitoneally. Both compounds were active against pentylenetetrazole-induced lethal convulsions in mice only when administered orally. After administration of pharmacologically effective oral doses (ED50, the dose protecting 50% of mice), at the time of assessment of the anti-pentylenetetrazole activity, mean brain concentrations of RL 218 and RL 236 were below the limits of sensitivity of the analytical procedure whereas brain concentrations of their metabolite RL 214 were comparable with that present after an oral equiactive dose of this compound itself. RL 214 but not RL 218 or RL 236 had in-vitro affinity for brain benzodiazepine receptors. These results indicate that the anticonvulsant activity of RL 218 and RL 236 in mice depends essentially on their in-vivo transformation into the common active metabolite RL 214 which most probably arises as a result of acid catalysed hydrolysis in the gastric juice.
Collapse
Affiliation(s)
- S Caccia
- Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Puodžiünaité B, Kosychova L, Jančiené R, Stumbrevičiüté Z. Synthsis and mild conversion of 1,5-benzodiazepine iminothioethers into hydrazides. Chem Heterocycl Compd (N Y) 1998. [DOI: 10.1007/bf02290727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|