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Micheli L, Rajamoni J, Di Cesare Mannelli L, Rajagopalan P, Ghelardini C, Rajagopalan R. DDD-028: A potent, neuroprotective, non-opioid compound for the treatment of diabetic neuropathy. Bioorg Med Chem Lett 2023; 95:129472. [PMID: 37690597 DOI: 10.1016/j.bmcl.2023.129472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
Diabetic neuropathy (DN) is a painful, chronic ailment that affects a large segment of diabetic population worldwide. Current medications such as pregabalin or duloxetine treat only the pain symptom associated with DN, but not the underlying nerve damage. DDD-028 (1) is a small molecule that displays potent pain-relieving activity in streptozotocin (STZ)-induced rodent model of DN. Combined with other studies indicating that DDD-028 suppresses astrogliosis and nerve damage induced by the anti-cancer drug, paclitaxel, the present study suggests that DDD-028 would be useful as a disease modifying therapeutic in the treatment of DN. The 3-dimensional structure of DDD-028 was confirmed by single crystal X-ray crystallography.
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Affiliation(s)
- Laura Micheli
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA-Pharmacology and Toxicology Section, University of Florence, Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | - Jagan Rajamoni
- Department of Chemistry and Biochemistry, University of Missouri, St. Louis, One University Blvd., St. Louis, MO 63121, USA
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA-Pharmacology and Toxicology Section, University of Florence, Florence, Viale Pieraccini 6, 50139 Florence, Italy
| | | | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA-Pharmacology and Toxicology Section, University of Florence, Florence, Viale Pieraccini 6, 50139 Florence, Italy
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Jayachandran P, Angamuthu A, Gopalan P. Redox potentials of puckered 1,4-benzoquinone. J CHEM SCI 2022. [DOI: 10.1007/s12039-021-02005-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Uzun S, Demircioğlu Z, Koç E, Ceylan M. X-ray, DFT (Chemical activity, Charge transfer and Non-linear optical properties) and Spectroscopic Studies on 2-amino-4-(4-bromophenyl)-5,6[H]quinoline-3-carbonitrile (I) and 2-amino-4-(2-bromophenyl)-5,6[H]quinoline-3-carbonitrile (II). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131318] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Vahdani Alviri B, Pourayoubi M, Abdul Salam AA, Nečas M, Lee AVD, Chithran A, Damodaran K. Conformational flexibility in amidophosphoesters: a CSD analysis completed with two new crystal structures of (C6H5O)2P(O)X [X = NHC7H13 and N(CH2C6H5)2]. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2020; 76:104-116. [DOI: 10.1107/s2053229619016619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 12/10/2019] [Indexed: 11/11/2022]
Abstract
The crystal structures of diphenyl (cycloheptylamido)phosphate, C19H24NO3P or (C6H5O)2P(O)(NHC7H13), (I), and diphenyl (dibenzylamido)phosphate, C26H24NO3P or (C6H5O)2P(O)[N(CH2C6H5)2], (II), are reported. The NHC7H13 group in (I) provides two significant hydrogen-donor sites in N—H...O and C—H...O hydrogen bonds, needed for a one-dimensional hydrogen-bond pattern along [100] in the crystal, while (II), with a (C6H5CH2)2N moiety, lacks these hydrogen bonds, but its three-dimensional supramolecular structure is mediated by C—H...π interactions. The conformational behaviour of the phenyl rings in (I), (II) and analogous structures from the Cambridge Structural Database (CSD) were studied in terms of flexibility, volume of the other group attached to phosphorus and packing forces. From this study, synclinal (±sc), anticlinal (±ac) and antiperiplanar (±ap) conformations were found to occur. In the structure of (II), there is an intramolecular C
ortho
—H...O interaction that imposes a +sc conformation for the phenyl ring involved. For the structures from the CSD, the +sc and ±ap conformations appear to be mainly imposed by similar C
ortho
—H...O intramolecular interactions. The large contribution of the C...H/H...C contacts (32.3%) in the two-dimensional fingerprint plots of (II) is a result of the C—H...π interactions. The differential scanning calorimetry (DSC) analyses exhibit peak temperatures (T
m) at 109 and 81 °C for (I) and (II), respectively, which agree with the strengths of the intermolecular contacts and the melting points.
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5
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Experimental and density functional theory (MEP, FMO, NLO, Fukui functions) and antibacterial activity studies on 2-amino-4- (4-nitrophenyl) -5,6-dihydrobenzo [h] quinoline-3-carbonitrile. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Akbari S, Khoshnood RS, Ahmadabad FK, Pourayoubi M, Dušek M, Shchegravina ES. The (CF 3C(O)NH)(C 6H 5CH 2NH) 2P(O) phosphoric triamide as a novel carrier with excellent efficiency for Cu( ii) in a liquid membrane transport system. RSC Adv 2019; 9:9153-9159. [PMID: 35517695 PMCID: PMC9062073 DOI: 10.1039/c8ra09118h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 02/22/2019] [Indexed: 12/04/2022] Open
Abstract
Transport of Ag(i), Cd(ii), Co(ii), Cu(ii), Ni(ii), Pb(ii) and Zn(ii) cations across a bulk liquid membrane (BLM) containing N,N′-dibenzyl-N′′-(2,2,2-trifluoroacetyl)-phosphoric triamide (PTC) as a new carrier is studied by atomic absorption spectrometry. The results show selective and efficient transport of the copper(ii) cation from aqueous solution in the presence of the other cations. Various factors are optimized in order to obtain maximum transport efficiency. The PTC ligand is characterized by single crystal X-ray diffraction analysis, IR, NMR (19F, 31P, 1H, 13C) and mass spectroscopy. The complex formation reaction between copper(ii) and PTC is studied by a conductometric method, which shows the 1 : 1 stoichiometry for ligand and copper(ii). Selective transport of Cu(ii) cation in the presence of six other cations across a bulk liquid membrane containing a novel phosphoric triamide carrier is studied.![]()
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Affiliation(s)
- Setareh Akbari
- Department of Chemistry
- Mashhad Branch
- Islamic Azad University
- Mashhad
- Iran
| | | | | | - Mehrdad Pourayoubi
- Department of Chemistry
- Faculty of Science
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Michal Dušek
- Institute of Physics of the Czech Academy of Sciences
- Czech Republic
| | - Ekaterina S. Shchegravina
- Department of Chemistry
- Lobachevsky State University of Nizhni Novgorod
- Nizhny Novgorod
- Russian Federation
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7
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Karimi Ahmadabad F, Pourayoubi M, Bakhshi H. Decorated single-enantiomer phosphoramide-based silica/magnetic nanocomposites for direct enantioseparation. RSC Adv 2019; 9:27147-27156. [PMID: 35529218 PMCID: PMC9070676 DOI: 10.1039/c9ra03260f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 08/16/2019] [Indexed: 01/31/2023] Open
Abstract
The nano-composites Fe3O4@SiO2@PTA(+) and Fe3O4@SiO2@PTA(−) (PTA: phosphoric triamide) were prepared and used for the chiral separation of five racemic mixtures.
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Affiliation(s)
| | - Mehrdad Pourayoubi
- Department of Chemistry
- Faculty of Science
- Ferdowsi University of Mashhad
- Mashhad
- Iran
| | - Hadi Bakhshi
- Macromolecular Chemistry II
- University of Bayreuth
- 95440 Bayreuth
- Germany
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Vahdani Alviri B, Pourayoubi M, Farhadipour A, Nečas M, Bertolasi V. A combined X-ray crystallography and theoretical study of N-H...OX (X is =P and -C) hydrogen bonds in two new structures with a (C-O) 2(N)P(=Y) (Y is O and S) skeleton. Acta Crystallogr C Struct Chem 2018; 74:1610-1621. [PMID: 30516144 DOI: 10.1107/s2053229618014006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/02/2018] [Indexed: 01/05/2023] Open
Abstract
The crystal structures of N,N'-(cyclohexane-1,4-diyl)bis(O,O'-diphenylphosphoramide), C30H32N2O6P2 or (C6H5O)2P(O)(1-NH)(C6H10)(4-NH)P(O)(OC6H5)2, (I), and N,N'-(1,4-phenylene)bis(O,O'-dimethylthiophosphoramide), C10H18N2O4P2S2 or (CH3O)2P(S)(1-NH)(C6H4)(4-NH)P(S)(OCH3)2, (II), have been investigated. In the structure of (I), with an (O)2(N)P(O) skeleton, two symmetry-independent phosphoramide molecules are linked through N-H...O=P hydrogen bonds. In the structure of (II), with an (O)2(N)P(S) skeleton, the ester O atoms take part in N-H...O-C hydrogen bonds as acceptors; the P=S groups do not participate in hydrogen-bonding interactions. The strengths of these hydrogen bonds were evaluated, using quantum chemical calculations with the GAUSSIAN09 software package at the B3LYP/6-311G(d,p) level of theory. For this, LP(O) to σ*(NH) charge transfers were studied, according to the second-order perturbation theory in natural bond orbital (NBO) methodology, for a three-component cluster of hydrogen-bonded molecules for both structures, including all of the independent N-H...O hydrogen bonds observed in the crystal packing. The details of the intermolecular interactions were studied by Hirshfeld surface maps and two-dimensional fingerprint plots.
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Affiliation(s)
| | - Mehrdad Pourayoubi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Abolghasem Farhadipour
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Marek Nečas
- Department of Chemistry, Masaryk University, Kotlarska 2, Brno CZ-6113, Czech Republic
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche and Centro di Strutturistica Diffrattometrica, Università di Ferrara, 44121 Ferrara, Italy
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Mirzaei M, Eshghi H, Akhlaghi Bagherjeri F, Mirzaei M, Farhadipour A. Investigation of non-covalent and hydrogen bonding interactions on the formation of crystalline networks and supramolecular synthons of a series of α-aminophosphonates: Crystallography and DFT studies. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Eghbali Toularoud M, Pourayoubi M, Dušek M, Eigner V, Damodaran K. Chiral one-dimensional hydrogen-bonded architectures constructed from single-enantiomer phosphoric triamides. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:608-617. [PMID: 29726471 DOI: 10.1107/s2053229618004734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 03/22/2018] [Indexed: 11/10/2022]
Abstract
The two single-enantiomer phosphoric triamides N-(2,6-difluorobenzoyl)-N',N''-bis[(S)-(-)-α-methylbenzyl]phosphoric triamide, [2,6-F2-C6H3C(O)NH][(S)-(-)-(C6H5)CH(CH3)NH]2P(O), denoted L-1, and N-(2,6-difluorobenzoyl)-N',N''-bis[(R)-(+)-α-methylbenzyl]phosphoric triamide, [2,6-F2-C6H3C(O)NH][(R)-(+)-(C6H5)CH(CH3)NH]2P(O), denoted D-1, both C23H24F2N3O2P, have been investigated. In their structures, chiral one-dimensional hydrogen-bonded architectures are formed along [100], mediated by relatively strong N-H...O(P) and N-H...O(C) hydrogen bonds. Both assemblies include the noncentrosymmetric graph-set motifs R22(10), R21(6) and C22(8), and the compounds crystallize in the chiral space group P1. Due to the data collection of L-1 at 120 K and of D-1 at 95 K, the unit-cell dimensions and volume show a slight difference; the contraction in the volume of D-1 with respect to that in L-1 is about 0.3%. The asymmetric units of both structures consist of two independent phosphoric triamide molecules, with the main difference being seen in one of the torsion angles in the OPNHCH(CH3)(C6H5) part. The Hirshfeld surface maps of these levo and dextro isomers are very similar; however, they are near mirror images of each other. For both structures, the full fingerprint plot of each symmetry-independent molecule shows an almost asymmetric shape as a result of its different environment in the crystal packing. It is notable that NMR spectroscopy could distinguish between compounds L-1 and D-1 that have different relative stereocentres; however, the differences in chemical shifts between them were found to be about 0.02 to 0.001 ppm under calibrated temperature conditions. In each molecule, the two chiral parts are also different in NMR media, in which chemical shifts and P-H and P-C couplings have been studied.
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Affiliation(s)
| | - Mehrdad Pourayoubi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Michal Dušek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Václav Eigner
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - Krishnan Damodaran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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