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Avagyan NA, Lemport PS, Evsiunina MV, Matveev PI, Aksenova SA, Nelyubina YV, Yatsenko AV, Tafeenko VA, Petrov VG, Ustynyuk YA, Bi X, Nenajdenko VG. Pyrrolidine-Derived Phenanthroline Diamides: An Influence of Fluorine Atoms on the Coordination of Lu(III) and Some Other f-Elements and Their Solvent Extraction. Int J Mol Sci 2023; 24:ijms24065569. [PMID: 36982643 PMCID: PMC10056393 DOI: 10.3390/ijms24065569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Three pyrrolidine-derived phenanthroline diamides were studied as ligands for lutetium trinitrate. The structural features of the complexes have been studied using various spectral methods and X-ray. The presence of halogen atoms in the structure of phenanthroline ligands has a significant impact on both the coordination number of lutetium and the number of solvate water molecules in the internal coordination sphere. The stability constants of complexes with La(NO3)3, Nd(NO3)3, Eu(NO3)3, and Lu(NO3)3 were measured to demonstrate higher efficiency of fluorinated ligands. NMR titration was performed for this ligand, and it was found that complexation with lutetium leads to an approximately 13 ppm shift of the corresponding signal in the 19F NMR spectrum. The possibility of formation of a polymeric oxo-complex of this ligand with lutetium nitrate was demonstrated. Experiments on the liquid–liquid extraction of Am(III) and Ln(III) nitrates were carried out to demonstrate advantageous features of chlorinated and fluorinated pyrrolidine diamides.
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Affiliation(s)
- Nane A. Avagyan
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Pavel S. Lemport
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Mariia V. Evsiunina
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Petr I. Matveev
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Svetlana A. Aksenova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Institutskiy per. 9, 141700 Dolgoprudny, Russia
| | - Yulia V. Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Alexandr V. Yatsenko
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Viktor A. Tafeenko
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Vladimir G. Petrov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Yuri A. Ustynyuk
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, 5286 Renmin Street, Changchun 130024, China
| | - Valentine G. Nenajdenko
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Correspondence:
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Kar B, Paira P. One pot three component synthesis of DNA targeting phototoxic Ru(II)- p-cymene dipyrido[3,2- a:2',3'- c]phenazine analogues. Dalton Trans 2022; 51:15686-15695. [PMID: 36173180 DOI: 10.1039/d2dt01659a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a one pot three component synthetic protocol for half-sandwich Ru(II)-p-cymene dipyrido[3,2-a:2',3'-c]phenazine analogues for selective cancer therapy under light irradiation. On average, the cytotoxicity of all the complexes is indeed doubled upon light irradiation and also exhibited significant photo and dark selectivity against cancer cells with respect to normal cells. Out of five Ru(II) complexes (RuL1-RuL5), [(η6-p-cymene)RuIICl(K2-N,N-11-nitrodipyrido[3,2-a:2',3'-c]phenazine]PF6 (RuL4) exhibited the best phototoxicity (lowest IC50 under light irradiation). Intracellular ROS generation was studied by the 2',7'-dichlorofluorescein diacetate (DCFH-DA) assay. Moreover, these complexes exhibited a strong serum albumin and DNA binding capacity. These complexes also exhibited good stability in 10% DMSO-buffer and under 1 mM GSH conditions. Overall, the remarkable photocytotoxic efficacy of new Ru(II)-p-cymene dipyrido[3,2-a:2',3'-c]phenazine analogues (RuL1-RuL5) makes them potential photochemotherapeutics as an alternative of current PDT agents.
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Affiliation(s)
- Binoy Kar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India.
| | - Priyankar Paira
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamilnadu, India.
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