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Altarejos et al. Org Lett. 2021;23(15):6174-6178. Enantioselective Copper-Catalyzed Synthesis of Trifluoromethyl-Cyclopropylboronates.

Publicaciones > Altarejos et al

Enantioselective Copper-Catalyzed Synthesis of Trifluoromethyl-Cyclopropylboronates.

1. Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica,, Alcalá de Henares 28805, Spain.  2. Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.  3. Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid 28034, Spain.

Abstract

A copper-catalyzed enantioselective cyclopropanation involving trifluorodiazoethane in the presence of alkenyl boronates has been developed. This transformation enables the preparation of 2-substituted-3-(trifluoromethyl)cyclopropylboronates with high levels of stereocontrol. The products are valuable synthetic intermediates by transformation of the boronate group. This methodology can be applied to the synthesis of novel trifluoromethylated analogues of trans-2-arylcyclopropylamines, which are prevalent motifs in biologically active compounds.

Garcia-Marin et al. ACS Med Chem Lett. 2021;12(11):1656-1662. Tripeptides as Integrin-Linked Kinase Modulating Agents Based on a Protein-Protein Interaction with α-Parvin.

Publicaciones > Garcia-Marin et al

Tripeptides as Integrin-Linked Kinase Modulating Agents Based on a Protein-Protein Interaction with α-Parvin.

1. Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares 28805, Spain.  2. Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. Colmenar Viejo, km. 9100, Madrid 28034, Spain.  3. Instituto de Investigación Química Andrés Manuel del Río (IQAR), Universidad de Alcalá, Alcalá de Henares 28805, Spain.  4. Departamento de Biología de Sistemas, Universidad de Alcalá, Alcalá de Henares 28805, Spain.  5. Graphenano Medical Care, S.L, Yecla 30510, Spain.

Abstract

Integrin-linked kinase (ILK) has emerged as a controversial pseudokinase protein that plays a crucial role in the signaling process initiated by integrin-mediated signaling. However, ILK also exhibits a scaffolding protein function inside cells, controlling cytoskeletal dynamics, and has been related to non-neoplastic diseases such as chronic kidney disease (CKD). Although this protein always acts as a heterotrimeric complex bound to PINCH and parvin adaptor proteins, the role of parvin proteins is currently not well understood. Using in silico approaches for the design, we have generated and prepared a set of new tripeptides mimicking an α-parvin segment. These derivatives exhibit activity in phenotypic assays in an ILK-dependent manner without altering kinase activity, thus allowing the generation of new chemical probes and drug candidates with interesting ILK-modulating activities.

Garre et al. J Org Chem. 2019;:. Regiodivergent Electrophilic Cyclizations of Alkynylcyclobutanes for the Synthesis of Cyclobutane-Fused O-Heterocycles.

Publicaciones > Garre et al

Regiodivergent Electrophilic Cyclizations of Alkynylcyclobutanes for the Synthesis of Cyclobutane-Fused O-Heterocycles.

1. Departamento de Quimica Organica y Quimica Inorganica, Campus Cientifico-Tecnologico, Facultad de Farmacia , Universidad de Alcala (IRYCIS) , Autovia A-II, Km 33.1 , 28805 Alcala de Henares , Madrid , Spain.  2. Departamento de Quimica Organica e Inorganica, Instituto Universitario de Quimica Organometalica "Enrique Moles" , Universidad de Oviedo , C/Julian Claveria, 8 , 33006 Oviedo , Spain.

Abstract

Cyclobutane-fused dihydropyrans and methylenetetrahydrofurans are highly interesting cores found in numerous natural products. Both these cores are selectively prepared from a common alkynylcyclobutane precursor bearing an appended hydroxyl group herein. Thus, cyclobutane-fused dihydropyrans can be obtained by a selective 6-endo-dig iodocyclization, whereas gold-catalyzed 5-exo-dig cycloisomerization provides a bicyclic core containing a methylenetetrahydrofuran moiety as major product. Several cyclobutane-fused O-heterocycles with diverse substituents are synthesized following the reported methodology.

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Patricia García

Patricia García García

Profesor Titular Universidad de Alcalá

  • Profesor Titular, Universidad de Alcalá (2019–)
  • Contratada “Ramón y Cajal” Universidad de Alcalá (2014-2019)
  • Contratada “Juan de la Cierva”, grupo del Prof. R. Sanz, Universidad de Burgos (2009-2013)
  • Investigadora Postdoctoral MEC, grupo del Prof. B. List, Max-Planck-Institut für Kohlenforschung, Alemania (2007-2009)
  • Doctorado, Universidad de Oviedo, directores Prof. J. Barluenga y Prof. E. Aguilar (2007)
  • Licenciada, Universidad de Oviedo (2002)
Doctora por la Universidad de Oviedo, con amplia experiencia posdoctoral en el campo de la síntesis orgánica y la catálisis. En 2014 se incorporó a la Universidad de Alcalá como contratada “Ramón y Cajal” y desde 2019 es profesora titular en esta misma universidad. Sus intereses actuales se centran en la síntesis y aplicaciones de azaborinos, el desarrollo de nuevas metodologías sintéticas basadas en ciclaciones electrofílicas de alquinos, y la preparación y evaluación de moléculas de interés en química médica. Durante su trayectoria científica ha participado en más de 20 proyectos de investigación obtenidos en convocatorias competitivas, siendo IP en varios de ellos, incluyendo 3 de carácter nacional. Su labor investigadora ha dado lugar a más de 50 publicaciones científicas y 5 patentes. Además, ha codirigido tres Tesis Doctorales y se encuentra codirigiendo otras 3.

 

Gutierrez et al. Eur J Med Chem. 2018;157:946-959. Discovery of potent calpain inhibitors based on the azolo-imidazolidenone.

Publicaciones > Gutierrez et al

Discovery of potent calpain inhibitors based on the azolo-imidazolidenone.

1. Departamento de Quimica Organica y Quimica Inorganica, Universidad de Alcala.  2. Departamento de Biologia de Sistemas, Universidad de Alcala, 28871, Alcala de.  3. Departamento de Quimica y Bioquimica, Facultad de Farmacia, Universidad San.  4. Research Unit and Nephrology Section, Hospital Principe de Asturias and.

Abstract

A series of new azolopyrimidine-peptide hybrids and indolomethylideneimidazolones

Abengozar et al. Org Lett. 2018;20(16):4902-4906. C-H Functionalization of BN-Aromatics Promoted by Addition of Organolithium Compounds to the Boron Atom.

Publicaciones > Abengozar et al

C-H Functionalization of BN-Aromatics Promoted by Addition of Organolithium Compounds to the Boron Atom.

1. Departamento de Quimica Organica y Quimica Inorganica, Instituto de Investigacion Quimica "Andres M. del Rio" (IQAR) , Universidad de Alcala , 28805 Alcala de Henares , Madrid , Spain.  2. Departamento de Quimica Analitica, Quimica Fisica e Ingenieria Quimica, Instituto de Investigacion Quimica "Andres M. del Rio" (IQAR) , Universidad de Alcala , 28805 Alcala de Henares , Madrid , Spain.  3. Centro de Espectroscopia de Resonancia Magnetica Nuclear (CERMN), CAI Quimicas , Universidad de Alcala , 28805 Alcala de Henares , Madrid , Spain.

Abstract

Addition of an organolithium compound to a BN-phenanthrene with embedded B and N atoms is proposed to result in coordination of RLi to the boron atom. This coordination, supported by NMR spectroscopy and DFT calculations, increases the nucleophilicity of the system in the beta position to the N atom and is therefore a useful tool for promoting regioselective C-H functionalization of BN aromatics.