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Martinez-Castillo M, Altamirano-Mendoza I, Sánchez-Valle S, García-Islas L, Sánchez-Barragán M, Hernández-Santillán M, Hernández-Barragán A, Pérez-Hernández J, Higuera-de la Tijera F, Gutierrez-Reyes G. Immune dysregulation and pathophysiology of alcohol consumption and alcoholic liver disease. Revista de Gastroenterología de México (English Edition) 2023; 88:136-154. [PMID: 36973122 DOI: 10.1016/j.rgmxen.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 01/13/2023] [Indexed: 03/28/2023] Open
Abstract
Alcoholic liver disease (ALD) is a clinical-pathologic entity caused by the chronic excessive consumption of alcohol. The disease includes a broad spectrum of anomalies at the cellular and tissual level that can cause acute-on-chronic (alcoholic hepatitis) or chronic (fibrosis, cirrhosis, hepatocellular cancer) injury, having a great impact on morbidity and mortality worldwide. Alcohol is metabolized mainly in the liver. During alcohol metabolism, toxic metabolites, such as acetaldehyde and oxygen reactive species, are produced. At the intestinal level, alcohol consumption can cause dysbiosis and alter intestinal permeability, promoting the translocation of bacterial products and causing the production of inflammatory cytokines in the liver, perpetuating local inflammation during the progression of ALD. Different study groups have reported systemic inflammatory response disturbances, but reports containing a compendium of the cytokines and cells involved in the pathophysiology of the disease, from the early stages, are difficult to find. In the present review article, the role of the inflammatory mediators involved in ALD progression are described, from risky patterns of alcohol consumption to advanced stages of the disease, with the aim of understanding the involvement of immune dysregulation in the pathophysiology of ALD.
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Rosique-Oramas D, Martínez-Castillo M, Raya A, Medina-Ávila Z, Aragón F, Limón-Castillo J, Hernández-Barragán A, Santoyo A, Montalvo-Javé E, Pérez-Hernández J, Higuera-de la Tijera F, Torre A, Kershenobich D, Gutiérrez-Reyes G. Production of insulin-like growth factor-binding proteins during the development of hepatic fibrosis due to chronic hepatitis C. Revista de Gastroenterología de México (English Edition) 2020. [DOI: 10.1016/j.rgmxen.2019.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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3
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van Baren CM, González SB, Bandoni AL, Di Leo Lira P, Bucio MA, Hernández-Barragán A, Joseph-Nathan P. GC-FID-MS and X-ray Diffraction for the Detailed Evaluation of the Volatiles From Senecio filaginoides. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20968443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The medicinal aromatic plant Senecio filaginoides DC, which is very widespread in the Patagonia region, was harvested at the vegetative, flowering, and fructification stages. The materials were extracted by hydrodistillation, yielding in average 0.34% v/w of essential oils with a pleasant sweet and greenish scent. A total of 56 components were identified by gas chromatography using flame ionization detection and mass spectra measurements, representing 96.1%-97.6% of the total oil. The sesquiterpenoid 10 αH-furanoeremophil-1-one (1) appeared as a major constituent (16.2%-26.9%) of the oil. It could be isolated by cooling the oil at 4°C, thus yielding yellow crystalline solids. Its stereochemistry was assigned by single-crystal X-ray diffraction since previous studies identified the compound with different stereochemistries. The use of classical separation and analytical methodologies remains as a very useful strategy for the correct identification of compounds present in the volatile fraction of a plant and is a route for potential industrial applications.
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Affiliation(s)
- Catalina M. van Baren
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Farmacognosia-IQUIMEFA (UBA-CONICET), Buenos Aires, Argentina
| | - Silvia B. González
- Universidad Nacional de la Patagonia SJB, Sede Esquel, Facultad de Ciencias Naturales y Ciencias de la Salud, Laboratorio de Investigación de Plantas Aromáticas y Medicinales, Química Orgánica, Esquel, Chubut, Argentina
| | - Arnaldo L. Bandoni
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Farmacognosia-IQUIMEFA (UBA-CONICET), Buenos Aires, Argentina
| | - Paola Di Leo Lira
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Farmacognosia-IQUIMEFA (UBA-CONICET), Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires. Instituto de la Química y el Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - María A. Bucio
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Angelina Hernández-Barragán
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico
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4
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Rosique-Oramas D, Martínez-Castillo M, Raya A, Medina-Ávila Z, Aragón F, Limón-Castillo J, Hernández-Barragán A, Santoyo A, Montalvo-Javé E, Pérez-Hernández JL, Higuera-de la Tijera F, Torre A, Kershenobich D, Gutiérrez-Reyes G. Production of insulin-like growth factor-binding proteins during the development of hepatic fibrosis due to chronic hepatitis C. Rev Gastroenterol Mex (Engl Ed) 2019; 85:390-398. [PMID: 31740166 DOI: 10.1016/j.rgmx.2019.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/10/2019] [Indexed: 02/05/2023]
Abstract
INTRODUCTION AND AIMS Insulin-like growth factor 1 is modulated by the insulin-like growth factor-binding proteins (IGFBPs) that are synthesized in the liver. The aim of the present study was to evaluate the concentrations of IGFBPs 1-7 in patients with chronic hepatitis C and study their association with fibrosis stage. PATIENTS AND METHODS A prospective, cross-sectional study was conducted that included patients with chronic hepatitis C. The stages of fibrosis were determined through FibroTest and FibroScan and the patients were compared with a control group. Serum levels of IGFBPs 1-7 were quantified through multiple suspension arrays. The Kruskal-Wallis test, Mann-Whitney U test, Spearman's correlation, and ROC curves were used for the statistical analysis. RESULTS Upon comparing the patients and controls, the highest concentrations were found in IGFBPs 1, 2, 4, and 7 (p=0.02, p=0.002, p=0.008, and p<0.001, respectively). IGFBP-3 levels had a tendency to be lower in the patients (p=0.066), whereas values were similar between patients and controls for IGFBP-5 and 6 (p=0.786 and p=0.244, respectively). Of the seven IGFBPs, IGFBP-3 concentrations were the highest. There were significant differences between fibrosis stages for IGFBP-5 and IGFBP-7. CONCLUSION IGFBPs play a relevant role in the fibrotic process in liver damage. IGFBP-7, in particular, differentiates fibrosis stages, making it a potential serum biomarker.
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Affiliation(s)
- D Rosique-Oramas
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - M Martínez-Castillo
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - A Raya
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - Z Medina-Ávila
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - F Aragón
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - J Limón-Castillo
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - A Hernández-Barragán
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - A Santoyo
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México
| | - E Montalvo-Javé
- Clínica Hepato-Pancreato-Biliar, Servicio de Cirugía General, Hospital General de México Dr. Eduardo Liceaga, Departamento de Cirugía, Facultad de Medicina, UNAM, Ciudad de México, México
| | - J L Pérez-Hernández
- Departamento de Gastroenterología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México
| | - F Higuera-de la Tijera
- Departamento de Gastroenterología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México, México
| | - A Torre
- Unidad de Hepatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - D Kershenobich
- Unidad de Hepatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
| | - G Gutiérrez-Reyes
- Laboratorio de Hígado, Páncreas y Motilidad (HIPAM), Unidad de Investigación en Medicina Experimental, Facultad de Medicina, UNAM, Ciudad de México, México.
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5
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Ortega AR, Toscano RA, Hernández-Barragán A, Alvarez-Cisneros C, Joseph-Nathan P. Structure elucidation of a new isoflavone by exclusive use of ¹H NMR measurements. Magn Reson Chem 2015; 53:860-865. [PMID: 26255633 DOI: 10.1002/mrc.4278] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/12/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
The leaves of Piscidia carthagenensis provided new 7,2',5'-trimethoxy-3',4'-methylenedioxyisoflavone (1), admixed with known 6,7-dimethoxy-3',4'-methylenedioxyisoflavone (2), and 5,4'-dihydroxy-7,2',5'-trimethoxyisoflavone (3), which were separated by extensive fractional solubillization. Selective irradiation of the H-5 "singlet" of 2 allowed distinction of the two methoxy group signals, whose chemical shift difference is only 0.004 ppm (1.2 Hz at 300 MHz). The (1)H and (13)C NMR data of 3 were assigned with the aid of HETCOR and gHMBC measurements. Although 1 looked inhomogeneous in the solid state, its solution structure followed from (1)H NMR measurements, where it looked homogeneous. To clarify the solid state aspect and confirm the structure of 1, two types of crystals were mechanically separated and subjected to single crystal X-ray diffraction measurements. This study revealed polymorphism because of the concomitant presence of orthorhombic and triclinic crystals, but showed no atropisomerism. The structure of 3 was also verified by X-ray diffraction crystallography.
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Affiliation(s)
- Alfredo R Ortega
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico
| | - Rubén A Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico
| | - Angelina Hernández-Barragán
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, México, Mexico
| | - Celina Alvarez-Cisneros
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, México, Mexico
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, México, Mexico
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Sánchez-Castellanos M, Bucio MA, Hernández-Barragán A, Joseph-Nathan P, Cuevas G, Quijano L. Vibrational Circular Dichroism (VCD), VCD Exciton Coupling, and X-ray Determination of the Absolute Configuration of an α
,β
-Unsaturated Germacranolide. Chirality 2015; 27:247-52. [DOI: 10.1002/chir.22420] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 12/04/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Mariano Sánchez-Castellanos
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria 04510 México D.F. Mexico
| | - María A. Bucio
- Departamento de Química; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Apartado 14-740 México D.F., 07000 Mexico
| | - Angelina Hernández-Barragán
- Departamento de Química; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Apartado 14-740 México D.F., 07000 Mexico
| | - Pedro Joseph-Nathan
- Departamento de Química; Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional; Apartado 14-740 México D.F., 07000 Mexico
| | - Gabriel Cuevas
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria 04510 México D.F. Mexico
| | - Leovigildo Quijano
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior, Ciudad Universitaria 04510 México D.F. Mexico
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7
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Muñoz MA, Chamy C, Bucio MA, Hernández-Barragán A, Joseph-Nathan P. Absolute configuration of scopadulane diterpenes from Calceolaria species. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Morales-Ríos MS, Martínez-Richa A, Hernández-Gallegos Z, Hernández-Barragán A, Vera-Graziano R, Joseph-Nathan P. Studies of Dihydropyridines by X-Ray Diffraction and Solid State 13C NMR. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-2007-0410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fourteen dimethyl 4-aryl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylates (DHPs) were evaluated by means of single crystal X-ray diffraction in order to investigate the effects of the structure in the crystals on the solid state 13C NMR chemical shifts. These include the analysis of three DHPs containing two molecules per asymmetric unit. The chiral rotamer unit generated by the s-cis/s-trans orientation of the carbonyl groups, as well as by rotation of the 4-phenyl ring out of the bisecting plane containing the N1, C4, C7 atoms, resulted in a significant magnetic non-equivalence for the C2-CH3/C6-CH3 and the COOCH3 pairs of signals. The solid state 13C NMR data reveal that the substitution pattern of the phenyl ring has a marked effect on the extent to which the signals of the carbonyl carbon atoms and those of C-2/C-6 peaks are split.
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Affiliation(s)
- Martha S. Morales-Ríos
- Departamento de Química and Sección Externa de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México D. F., 07000 México
| | - Antonio Martínez-Richa
- Facultad de Química, Universidad de Guanajuato, Noria alta s/n, Guanajuato, Gto 36050, México
| | - Zurisaddai Hernández-Gallegos
- Departamento de Química and Sección Externa de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, M´exico D. F., 07000 México
| | - Angelina Hernández-Barragán
- Departamento de Química and Sección Externa de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México D. F., 07000 México
| | - Ricardo Vera-Graziano
- Instituto de Investigaciones en Materiales, UNAM, Apartado 70-360, Coyoacán, México D. F., 04510 México
| | - Pedro Joseph-Nathan
- Departamento de Química and Sección Externa de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México D. F., 07000 México
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9
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Bustos-Brito C, Sánchez-Castellanos M, Esquivel B, Calderón JS, Calzada F, Yepez-Mulia L, Hernández-Barragán A, Joseph-Nathan P, Cuevas G, Quijano L. Structure, absolute configuration, and antidiarrheal activity of a thymol derivative from Ageratina cylindrica. J Nat Prod 2014; 77:358-363. [PMID: 24502360 DOI: 10.1021/np400964w] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The leaves of Ageratina cylindrica afforded a thymol derivative that was characterized by physical and spectroscopical methods as (8S)-8,9-epoxy-6-hydroxy-l0-benzoyloxy-7-oxothymol isobutyrate (1). The absolute configuration of 1 was established as 8S by vibrational circular dichroism spectroscopy in combination with density functional theory calculations and by evaluation of the Flack and Hooft X-ray parameters. Compound 1 showed weak antiprotozoal activity against Entamoeba histolytica and Giardia lamblia trophozoites and a high inhibitory effect on hyperpropulsive movement of the small intestine in rats.
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Affiliation(s)
- Celia Bustos-Brito
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito Exterior, Ciudad Universitaria, D.F., 04510 México
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10
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Muñoz MA, Urzúa A, Echeverría J, Bucio MA, Hernández-Barragán A, Joseph-Nathan P. Determination of absolute configuration of salvic acid, an ent-labdane from Eupatorium salvia, by vibrational circular dichroism. Phytochemistry 2012; 80:109-114. [PMID: 22656857 DOI: 10.1016/j.phytochem.2012.04.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 03/16/2012] [Accepted: 04/24/2012] [Indexed: 06/01/2023]
Abstract
The relative stereochemistry at C13 and the absolute configuration of salvic acid, a constituent of the leaves of Eupatorium salvia, were established as the 13-(R)-ent-labdane 1. The results follow from vibrational circular dichroism measurements of the derived O-methyl ether methyl ester 3 which were compared to DFT B3LYP/DGDZVP calculated spectra. The relative stereochemistry of salvic acid at C13 was independently verified by single crystal X-ray diffraction measurements of 1, and of its derived diol 4.
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Affiliation(s)
- Marcelo A Muñoz
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
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11
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Morales-Ríos MS, Rivera-Becerril E, González-Juárez DE, García-Vázquez JB, Trujillo-Serrato JJ, Hernández-Barragán A, Joseph-Nathan P. Synthesis of Pyrrolidinoindolines from 2-(2-Oxo-3-indolyl)acetates: Scope and Limitations. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of 1,3a,8-alkylpyrrolidinoindolines have been synthesized. The scope and limitations of the alkylation of starting methyl oxindol-3-acetates are explored employing electron-rich and electron-poor alkylating agents. Hydrolysis and reductive lactonization of the resulting carboxylic γ-oxindolic acid derivatives proceeds with good yields to afford 2-oxofuroindolines providing ready access to the pyrrolidinoindoline derivatives.
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Affiliation(s)
- Martha S. Morales-Ríos
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
- Programa de Posgrado en Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Ernesto Rivera-Becerril
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
- Programa de Posgrado en Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Daphne E. González-Juárez
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
- Programa de Posgrado en Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Juan Benjamín García-Vázquez
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
- Programa de Posgrado en Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Joel J. Trujillo-Serrato
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Angelina Hernández-Barragán
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
- Programa de Posgrado en Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
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Morales-Ríos MS, Rivera-Becerril E, González-Juárez DE, García-Vázquez JB, Trujillo-Serrato JJ, Hernández-Barragán A, Joseph-Nathan P. Synthesis of pyrrolidinoindolines from 2-(2-oxo-3-indolyl)acetates: scope and limitations. Nat Prod Commun 2011; 6:457-464. [PMID: 21560758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
A series of 1,3a,8-alkylpyrrolidinoindolines have been synthesized. The scope and limitations of the alkylation of starting methyl oxindol-3-acetates are explored employing electron-rich and electron-poor alkylating agents. Hydrolysis and reductive lactonization of the resulting carboxylic gamma-oxindolic acid derivatives proceeds with good yields to afford 2-oxofuroindolines providing ready access to the pyrrolidinoindoline derivatives.
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Affiliation(s)
- Martha S Morales-Ríos
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México.
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13
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Joseph-Nathan P, Leitão SG, Pinto SC, Leitão GG, Bizzo HR, Costa FLP, Amorim MBD, Martinez N, Dellacassa E, Hernández-Barragán A, Pérez-Hernández N. Structure reassignment and absolute configuration of 9-epi-presilphiperfolan-1-ol. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Areche C, San-Martín A, Rovirosa J, Muñoz MA, Hernández-Barragán A, Bucio MA, Joseph-Nathan P. Stereostructure reassignment and absolute configuration of isoepitaondiol, a meroditerpenoid from Stypopodium flabelliforme. J Nat Prod 2010; 73:79-82. [PMID: 20000452 DOI: 10.1021/np900553p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Careful examination of the published NMR data for isoepitaondiol, a meroditerpenoid from Stypopodium flabelliforme, suggests that its published structure 1 must be revised. On the basis of extensive 1D and 2D NMR studies, we now propose that structure 2, with a trans-anti-trans-anti-cis arrangement fits isoepitaondiol diacetate. The relative configuration of 2 was confirmed by single-crystal X-ray diffraction, while the absolute configuration was evidenced by vibrational circular dichroism in combination with DFT B3LYP/DGDZVP calculations.
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Affiliation(s)
- Carlos Areche
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
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Rivera A, Ríos-Motta J, Hernández-Barragán A, Joseph-Nathan P. Solid state 1:1 adduct via O–H⋯N hydrogen bond of the aminal 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) and hydroquinone. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2006.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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