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Esteban-Parra GM, Sebastián ES, Cepeda J, Sánchez-González C, Rivas-García L, Llopis J, Aranda P, Sánchez-Moreno M, Quirós M, Rodríguez-Diéguez A. Anti-diabetic and anti-parasitic properties of a family of luminescent zinc coordination compounds based on the 7-amino-5-methyl-1,2,4-triazolo[1,5-a]pyrimidine ligand. J Inorg Biochem 2020; 212:111235. [PMID: 32920434 DOI: 10.1016/j.jinorgbio.2020.111235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/07/2020] [Accepted: 08/14/2020] [Indexed: 01/08/2023]
Abstract
We report on the formation of a triazolopyrimidine derivative ligand, 7-amino-5-methyl-1,2,4-triazolo[1,5-a]pyrimidine (7-amtp), and a new family of coordination compounds based on this ligand and zinc as metal ion, synthesized by conventional routes. These materials possess different mononuclear structures, namely [ZnCl2(7-amtp)2] (1), [Zn(7-amtp)2(H2O)4](NO3)2·2(7-amtp)·6H2O (2) and [Zn(7-amtp)2(H2O)4](SO4)·1.5H2O (3) derived from the use of different zinc (II) salts, in such a way that the counterions govern the crystallization to a large extent. These compounds present and show variable luminescent properties based on ligand-centred charge transfers which have been deeply studied by Time Dependent Density Functional Theory (TD-DFT) calculations. When these compounds are transferred to solution, preserving complex entities as corroborated by NMR studies, they present interesting anti-diabetic and anti-parasitic capabilities, with a comparatively higher selectivity index than other previously reported triazolopyrimidine-based materials. The results derived from in vivo experiments conducted in mice also confirm their promising activity as anti-diabetic drug being capable of dropping glucose levels after oral administration. Therefore, these new materials may be considered as excellent candidates to be further investigated in the field of luminescent coordination compounds with biomedical applications.
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Affiliation(s)
- Ginés M Esteban-Parra
- Dept. of Inorganic Chemistry, University of Granada, C/Severo Ochoa s/n, 18071 Granada, Spain
| | - Eider San Sebastián
- Departmento de Quimica Aplicada, Facultad de Química, University of The Basque Country (UPV/EHU), 20018 San Sebastian, Spain
| | - Javier Cepeda
- Departmento de Quimica Aplicada, Facultad de Química, University of The Basque Country (UPV/EHU), 20018 San Sebastian, Spain
| | | | - Lorenzo Rivas-García
- Dept. of Physiology, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Juan Llopis
- Dept. of Physiology, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Pilar Aranda
- Dept. of Physiology, University of Granada, Cartuja Campus, 18071 Granada, Spain
| | - Manuel Sánchez-Moreno
- Dept. of Parasitology, University of Granada, Avda. Severo Ochoa s/n, 18071 Granada, Spain
| | - Miguel Quirós
- Dept. of Inorganic Chemistry, University of Granada, C/Severo Ochoa s/n, 18071 Granada, Spain.
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