Search Results - "Sierra, Manuel Gonzalez"

Andrimid production at low temperature by a psychrotolerant Serratia proteamaculans strain by Sánchez, Leandro A., Sierra, Manuel González, Siñeriz, Faustino, Delgado, Osvaldo

“…Andrimid, a known non-ribosomal pseudo-peptide antibiotic, was isolated from a psychrotolerant Serratia proteamaculans strain. The antibiotic peptide was…”
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Chemically engineered extracts: Bioactivity alteration through sulfonylation by Salazar, Mario O., Ramallo, I. Ayelen, Micheloni, Oscar, Sierra, Manuel Gonzalez, Furlan, Ricardo L.E.

“…The chemical composition and the biomolecular properties of a series of crude plant extracts were altered without previous knowledge of their detailed chemical…”
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Eudesmanes from Pluchea sagittalis. Their antifeedant activity on Spodoptera frugiperda by Vera, Nancy, Misico, Rosana, Sierra, Manuel González, Asakawa, Yoshinori, Bardón, Alicia

“…Eudesmane-type sesquiterpenoids 1 and 2, together with 10 known eudesmanes were isolated from Pluchea sagittalis. They were tested for their antifeedant…”
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Discovery of β-glucosidase inhibitors from a chemically engineered extract prepared through ethanolysis by Ramallo, I Ayelen, Sierra, Manuel González, Furlan, Ricardo L E

“…A series of vegetal extracts have been chemically altered by ethanolysis. The effect of the reaction on the inhibition of the enzyme β-glucosidase properties…”
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NMR and multivariate data analysis to assess traceability of argentine citrus by Salazar, Mario O., Pisano, Pablo L., González Sierra, Manuel, Furlan, Ricardo L.E.

“…Argentine citrus industry stands out among the top ten largest producers of citrus of the world. Traceability is a key point of the quality control in the…”
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Chemically engineered extracts as an alternative source of bioactive natural product-like compounds by López, Silvia N, Ramallo, I. Ayelen, Sierra, Manuel Gonzalez, Zacchino, Susana A, Furlan, Ricardo L.E

“…The access to libraries of molecules with interesting biomolecular properties is a limiting step in the drug discovery process. By virtue of a long molecular…”
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Antifungal activity of extracts and prenylated coumarins isolated from Baccharis darwinii Hook & Arn. (Asteraceae) by Kurdelas, Rita R, Lima, Beatriz, Tapia, Alejandro, Feresin, Gabriela Egly, Gonzalez Sierra, Manuel, Rodríguez, María Victoria, Zacchino, Susana, Enriz, Ricardo D, Freile, Monica L

“…The petroleum ether extract of Baccharis darwinii showed activity against Cryptococcus neoformans and dermatophytes. Bioactivity-guided fractionation of…”
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Enantiospecific Syntheses of C(5)-Functionalized Precursors of Artemisinin Derivatives by Cravero, Raquel M., Labadie, Guillermo R., Sierra, Manuel Gonzalez, Mc Chesney, James D.

“…Enantiomerically pure compounds as precursors for the synthesis of hydroxylated derivatives of artemisinin/arteether have been prepared from (+)‐(S)‐carvone…”
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An unusual homoisoflavanone and a structurally-related dihydrochalcone from Polygonum ferrugineum (Polygonaceae) by López, Silvia N., Sierra, Manuel Gonzalez, Gattuso, Susana J., Furlán, Ricardo L., Zacchino, Susana A.

“…A homoisoflavanone ( 1) and a dihydrochalcone ( 2) were isolated from dry leaves of Polygonum ferrugineum (Polygonaceae), along with five known chalcones and…”
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Molluscicidal Sesquiterpene Lactones from Species of the Tribe Vernonieae (Compositae) by Borkosky, Susana, de León, Susana Ponce, Juárez, Gabriela, Sierra, Manuel González, Bardón, Alicia

“…Schistosomiasis is caused by parasitic flatworms of the genus Schistosoma, and some snails, particularly of the genus Biomphalaria (Planorbidae), are directly…”
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A Short Synthesis of the Main Lactone Ketal Backbone Present in Saudin by Labadie, Guillermo R., Cravero, Raquel M., Sierra, Manuel Gonzalez

“…We are describing a brief stereospecific synthesis of a model compound related to Saudin, with a lactone ketal backbone present in the natural product starting…”
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Semibatch Aqueous-Solution Polymerization of Acrylic Acid: Simultaneous Control of Molar Masses and Reaction Temperature by Minari, Roque J., Caceres, Gerardo, Mandelli, Paola, Yossen, Mariana M., Gonzalez-Sierra, Manuel, Vega, Jorge R., Gugliotta, Luis M.

“…The semibatch polymerization of non‐ionized acrylic acid (AA) was investigated with the aim of producing poly(acrylic acid) (PAA) of controlled molar masses,…”
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Synthesis, structure and catalase-like activity of dimanganese(III) complexes of 1,5-bis(X-salicylidenamino)pentan-3-ol (X = 3- and 5-methyl). Influence of phenyl-ring substituents on catalytic activity by Moreno, Diego, Palopoli, Claudia, Daier, Verónica, Shova, Sergiu, Vendier, Laure, Sierra, Manuel González, Tuchagues, Jean-Pierre, Signorella, Sandra

“…The diMn(III) complexes [Mn2(5-Me-salpentO)(mu-MeO)(mu-AcO)(H2O)Br] (1) and [Mn2(3-Me-salpentO)(mu-MeO)(mu-AcO)(MeOH)2]Br (2), where salpentOH =…”
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The cytochrome c gene from the green alga Chlamydomonas reinhardtii: Structure and expression in wild-type cells and in obligate photoautotrophic (dk) mutants by Felitti, S.A. (Universidad Nacional del Litoral (Argentina)), Chan, R.L, Sierra, M.G, Gonzalez, D.H

“…The expression of the Chlamydomonas reinhardtii cytochrome c gene was studied at the steady-state mRNA level. The inclusion of acetate under illumination…”
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An efficient approach toward the synthesis of the A/B rings of ouabain by Plano, María Fernanda, Labadie, Guillermo R., Sierra, Manuel Gonzalez, Cravero, Raquel M.

“…The synthesis of the highly functionalized A/B ring related to ouabain has been accomplished efficiently from commercially available α-tetralone. A key Birch…”
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Two New Furanoeremophilanes from Senecio santelisis by Arias Cassará, María L., Borkosky, Susana A., Sierra, Manuel González, Bardón, Alicia, Ybarra, María I.

“…From an Argentine collection of Senecio santelisis Phil., the new furanoeremophilanoids, (10βH)‐6β‐acetoxy‐1α‐hydroxyfuranoeremophilan‐9‐one (1) and…”
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Toxicity and Synergism in the Feeding Deterrence of Some Coumarins on Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) by Vera, Nancy, Popich, Susana, Luna, Liliana, Cravero, Raquel, Sierra, Manuel González, Bardón, Alicia

“…The phagodepression activity of five coumarins (=2H‐1‐benzopyran‐2‐ones), 6‐hydroxy‐7‐isoprenyloxycoumarin (1), 6‐methoxy‐7‐isoprenyloxycoumarin (2),…”
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Synthesis of the Tetracyclic Bis(acetal) Lactone Portion of Saudin by Labadie, Guillermo R., Luna, Liliana E., Gonzalez-Sierra, Manuel, Cravero, Raquel M.

“…Two synthetic approaches towards the synthesis of the tetracyclic lactone 4, containing the caged bis(acetalic) backbone of Saudin, were explored. Both…”
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In Vitro Evaluation of Antifungal Properties of 8.O.4‘-Neolignans by Zacchino, Susana, Rodríguez, Gladis, Pezzenati, Germán, Orellana, Gabriela, Enriz, Ricardo, Gonzalez Sierra, Manuel

“…Eighteen racemic 8.O.4‘-neolignans with six different substitution patterns in rings A and B, in their ketone and in their erythro and threo alcoholic forms,…”
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A Simple Synthesis of a Model of the Tetracyclic Bisketal Lactone Mainframe of Saudin by Labadie, Guillermo R., Luna, Liliana E., Cravero, Raquel M., González-Sierra, Manuel

“…The partial structure 2 of the bisketal‐type, tetracyclic saudin (1), an important natural product, was de novo synthesized. A key step was the Jones oxidation…”
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