Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Juan Niclós-Gutiérrez"'
Autor:
Alfonso Castiñeiras, Nuria Fernández-Hermida, Isabel García-Santos, Lourdes Gómez-Rodríguez, Antonio Frontera, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 29, Iss 10, p 2245 (2024)
The reaction between 5-acetylbarbituric acid and 4-dimethylthiosemicarbazide or 4-hexamethyleneiminyl thiosemicarbazide produces 5-acetylbarbituric-4-dimethylthiosemicarbazone (H2AcbDM) and 5-acetylbarbituric-4N-hexamethyleneiminyl thiosemicarbazone
Externí odkaz:
https://doaj.org/article/204fd1b860bd4d488c75ca96b900abf2
Autor:
Jeannette Carolina Belmont-Sánchez, Duane Choquesillo-Lazarte, María Eugenia García-Rubiño, Antonio Matilla-Hernández, Juan Niclós-Gutiérrez, Alfonso Castiñeiras, Antonio Frontera
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 24, p 17381 (2023)
The synthesis and characterization of the multicomponent crystals formed by 2,2′-thiodiacetic acid (H2tda) and 2,6-diaminopurine (Hdap) or N9-(2-hydroxyethyl)adenine (9heade) are detailed in this report. These crystals exist in a salt rather than a
Externí odkaz:
https://doaj.org/article/ac2efdec8e9b4bb59482c0fd3c4320da
Autor:
Homa Mousavi, María Eugenia García-Rubiño, Duane Choquesillo-Lazarte, Alfonso Castiñeiras, Luis Lezama, Antonio Frontera, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 28, Iss 17, p 6263 (2023)
Reactions in water between the Cu2(µ-EGTA) chelate (EGTA = ethylene-bis(oxyethyleneimino)tetraacetate(4-) ion) and Hdap in molar ratios 1:1 and 1:2 yield only blue crystals of the ternary compound [Cu4(μ-EGTA)2(μ-H(N3)dap)2(H2O)2]·7H2O (1), which
Externí odkaz:
https://doaj.org/article/e5a461bff5a34f93b6b8be8efcff878c
Autor:
Carmen Rosales-Martínez, Antonio Matilla-Hernádez, Duane Choquesillo-Lazarte, Antonio Frontera, Alfonso Castiñeiras, Juan Niclós-Gutiérrez
Publikováno v:
Molecules, Vol 28, Iss 15, p 5830 (2023)
Considering that Cu(tda) chelate (tda: dithioacetate) is a receptor for adenine and related 6-aminopurines, this study reports on the synthesis, molecular and crystal structures, thermal stability, spectral properties and DFT calculations related to
Externí odkaz:
https://doaj.org/article/aa5214811fcb4031a006b46acf9fdb7d
Autor:
Jeannette Carolina Belmont-Sánchez, Duane Choquesillo-Lazarte, Ricardo Navarrete-Casas, Antonio Frontera, Alfonso Castiñeiras, Juan Niclós-Gutiérrez, Antonio Matilla-Hernández
Publikováno v:
Crystals, Vol 13, Iss 1, p 7 (2022)
Metal ion interactions with nuclei acids and their constituents represent a multi-faceted and growing research field. This contribution deals with molecular recognition between synthetic purine 17 nucleosides and first-row transition metal complexes,
Externí odkaz:
https://doaj.org/article/820cded4644d445d9dea837a8d6b88f5
Autor:
Francisco Javier Acebedo-Martínez, Carolina Alarcón-Payer, Helena María Barrales-Ruiz, Juan Niclós-Gutiérrez, Alicia Domínguez-Martín, Duane Choquesillo-Lazarte
Publikováno v:
Crystals, Vol 12, Iss 8, p 1038 (2022)
Multicomponent pharmaceutical materials offer new opportunities to address drug physicochemical issues and to obtain improved drug formulation, especially on oral administration drugs. This work reports three new multicomponent pharmaceutical crystal
Externí odkaz:
https://doaj.org/article/3a24b49b4f3f4dd18117a4bfbaef7503
Autor:
Alfonso Castiñeiras, Antonio Frontera, Isabel García-Santos, Josefa M. González-Pérez, Juan Niclós-Gutiérrez, Rocío Torres-Iglesias
Publikováno v:
Crystals, Vol 12, Iss 2, p 142 (2022)
We prepared cocrystals of DL-2-Hydroxy-2-phenylacetic acid (D, L-H2ma) with the pyridinecarboxamide isomers, picolinamide (pic) and isonicotinamide (inam). They were characterized by elemental analysis, single crystal and powder X-ray, IR spectroscop
Externí odkaz:
https://doaj.org/article/0fce8550180f4ed3a67433125b80ee3d
Autor:
María Eugenia García-Rubiño, Antonio Matilla-Hernández, Antonio Frontera, Luis Lezama, Juan Niclós-Gutiérrez, Duane Choquesillo-Lazarte
Publikováno v:
Pharmaceuticals, Vol 14, Iss 5, p 426 (2021)
In the extensive field of metal ions, their interactions with nucleic acids, and their constituents, the main aim of this work is to develop a metal chelate suitable to recognize two molecules of an adenine nucleoside. For this purpose, the dinuclear
Externí odkaz:
https://doaj.org/article/be5035bfc70c4112837385ebb2ddfbad
Autor:
Raquel Álvarez-Vidaurre, Alfonso Castiñeiras, Antonio Frontera, Isabel García-Santos, Diego M. Gil, Josefa M. González-Pérez, Juan Niclós-Gutiérrez, Rocío Torres-Iglesias
Publikováno v:
Crystals, Vol 11, Iss 4, p 328 (2021)
This work deals with the preparation of pyridine-3-carbohydrazide (isoniazid, inh) cocrystals with two α-hydroxycarboxylic acids. The interaction of glycolic acid (H2ga) or d,l-mandelic acid (H2ma) resulted in the formation of cocrystals or salts of
Externí odkaz:
https://doaj.org/article/db8a2c9db53842058fff4a8400afca01
Autor:
Jeannette Carolina Belmont-Sánchez, María Eugenia García-Rubiño, Antonio Frontera, Josefa María González-Pérez, Alfonso Castiñeiras, Juan Niclós-Gutiérrez
Publikováno v:
Crystals, Vol 11, Iss 1, p 48 (2021)
We synthesized and studied the polymeric compound {[Cu2(µ4-EDTA)(Him)2] 2H2O}n (1). The single-crystal structure is reported along with an in depth characterization of its thermal stability (TGA), spectral properties (FT-IR, Vis-UV and RSE), and mag
Externí odkaz:
https://doaj.org/article/82210840e8db478c84df5b391c396bf8