Search Results - "Calderón, José S."

ent-Kaurene Glycosides from Ageratina cylindrica by Bustos-Brito, Celia, Sánchez-Castellanos, Mariano, Esquivel, Baldomero, Calderón, José S, Calzada, Fernando, Yépez-Mulia, Lilian, Joseph-Nathan, Pedro, Cuevas, Gabriel, Quijano, Leovigildo

“…The aqueous extract of the leaves of Ageratina cylindrica afforded six new ent-kaurenoic acid glycosides together with the known diterpenoid paniculoside V,…”
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Further Thymol Derivatives from Ageratina cylindrica by Bustos-Brito, Celia, Esquivel, Baldomero, Calzada, Fernando, Yepez-Mulia, Lilian, Calderón, José S., Porras-Ramirez, Javier, Quijano, Leovigildo

“…From the leaves of Ageratina cylindrica, in addition to the described [(2S)‐2‐{4‐formyl‐5‐hydroxy‐2‐[(2‐methylpropanoyl)oxy]phenyl}oxiran‐2‐yl]methyl benzoate…”
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Structure, Absolute Configuration, and Antidiarrheal Activity of a Thymol Derivative from Ageratina cylindrica by Bustos-Brito, Celia, Sánchez-Castellanos, Mariano, Esquivel, Baldomero, Calderón, José S, Calzada, Fernando, Yepez-Mulia, Lilian, Hernández-Barragán, Angelina, Joseph-Nathan, Pedro, Cuevas, Gabriel, Quijano, Leovigildo

“…The leaves of Ageratina cylindrica afforded a thymol derivative that was characterized by physical and spectroscopical methods as…”
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Antidiarrheal Thymol Derivatives from Ageratina glabrata. Structure and Absolute Configuration of 10-Benzoyloxy-8,9-epoxy-6-hydroxythymol Isobutyrate by Bustos-Brito, Celia, Vázquez-Heredia, Valeria J, Calzada, Fernando, Yépez-Mulia, Lilian, Calderón, José S, Hernández-Ortega, Simón, Esquivel, Baldomero, García-Hernández, Normand, Quijano, Leovigildo

“…Chemical investigation of the leaves from Ageratina glabrata yielded four new thymol derivatives, namely: 10-benzoyloxy-8,9-dehydro-6-hydroxythymol isobutyrate…”
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Antinociceptive Activity of Compounds from the Aqueous Extract of Melampodium divaricatum by Pérez‐Vásquez, Araceli, Padilla‐Mayne, Sofía, Martínez, Ana Laura, Calderón, José S., Macías‐Rubalcava, Martha L., Torres‐Colín, Rafael, Rangel‐Grimaldo, Manuel, Mata, Rachel

“…A decoction prepared from the aerial parts of Melampodium divaricatum showed antinociceptive and antihyperalgesic responses when tested in the formalin model…”
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Growth Inhibitory Effects on Fall Armyworm Spodoptera frugiperda of Some Limonoids Isolated from Cedrela spp. (Meliaceae) by Céspedes, Carlos L, Calderón, José S, Lina, Laura, Aranda, Eduardo

“…Dichloromethane extracts of Cedrela salvadorensis and Cedrela dugessi afforded a photogedunin epimeric mixture, gedunin and cedrelanolide. These compounds and…”
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Trypanocidal Activity of Oleoresin and Terpenoids Isolated from Pinus oocarpa by Rubio, Julieta, Calderón, José S., Flores, Angélica, Castro, Clementina, Céspedes, Carlos L.

“…Fractionation with n-hexane/ethyl acetate (1:1 v/v) by open column chromatography of the oleoresin from Pinus oocarpa Schiede yielded two diterpenes, pimaric…”
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A C-Glycosylflavone from Piper ossanum, a Compound Conformationally Controlled by CH/π and Other Weak Intramolecular Interactions by Larionova, María, Spengler, Iraida, Nogueiras, Clara, Quijano, Leovigildo, Ramírez-Gualito, Karla, Cortés-Guzmán, Fernando, Cuevas, Gabriel, Calderón, José S

“…The structure of the known 2′′-O-α-rhamnosyl-4′′-O-methylvitexin (apigenin-8-C-α-rhamnosyl-(1→2)-β-4-O-methylglucopyranoside), isolated from the leaves of…”
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Antiviral activity of Ageratina havanensis and major chemical compounds from the most active fraction by Barrio, Gloria del, Spengler, Iraida, García, Trina, Roque, Annele, Álvarez, Ángel L., Calderón, José S., Parra, Francisco

“…The antiviral activity of extracts obtained from Ageratina havanensis (Kunth) R.M.King & H.Rob., Asteraceae, against rabbit vesivirus (RaV) (Caliciviridae) and…”
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Tyrosinase Inhibitors from Galls of Rhus javanica Leaves and Their Effects on Insects by Kubo, Isao, Kinst-Hori, Ikuyo, Nihei, Ken-Ichi, Soria, Frida, Takasaki, Midori, Calderón, José S., Céspedes, Carlos L.

“…As a defense mechanism of the leaves of Rhus javanica (Anacardiaceae) against the aphid Melaphis chinensis (Aphididae) attack, tannic acid is rapidly…”
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Tyrosinase Inhibition Kinetics of Anisic Acid by Kubo, Isao, Chen, Qing-Xi, Nihei, Ken-Ichi, Calderón, José S., Céspedes, Carlos L.

“…Anisic acid (p-methoxybenzoic acid) was characterized as a tyrosinase inhibitor from aniseed, a common food spice. It inhibited the oxidation of…”
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Persistence of Fecal Indicators and Microbial Source Tracking Markers in Water Flushed from Riverbank Soils by Calderon, Jose S., Verbyla, Matthew E., Gil, Mia, Pinongcos, Federick, Kinoshita, Alicia M., Mladenov, Natalie

“…Sewer overflows and exfiltration can potentially contaminate water bodies with pathogens from wastewater. Microbial source tracking (MST) methods such as the…”
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The Revised Structure of the Cytotoxic Heliangolide Euparhombin by Martínez-Vázquez, Mariano, Calderón, José S, Joseph-Nathan, Pedro

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Flavonoids from Tephrosia major. A New Prenyl-β-hydroxychalcone by Gómez-Garibay, Federico, Téllez-Valdez, Oswaldo, Moreno-Torres, Gregorio, Calderón, José S.

“…The roots and aerial parts of Tephrosia major Micheli, afforded a new prenylated-β-hydroxychalcone, characterized as…”
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Crystal structure of 2alpha,3alpha-dihydroxycativic acid: 6,7-dihydroxy-1,4,4a,5,6,7,8,8a-octahydro-beta,2,5,5,8a-pentamethyl-1-naphthalene pentanoic acid by Calderón, José S, Covarrubias-Zúñiga, Adrián, Toscano, Alfredo

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An unusual isopropenyldihydrofuran biflavanol from Tephrosia crassifolia by Gómez-Garibay, Federico, Calderón, José S, De La O Arciniega, Minarda, Céspedes, Carlos L, Téllez-Valdés, Oswaldo, Taboada, Javier

“…The roots and aerial parts of Tephrosia crassifolia afforded an isopropenyldihydrofuran biflavanol and a new chalcone. The structures and relative…”
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Evaluation of Microbial Source Tracking Markers for Human-Associated Fecal Contamination to a River from Non-Point Sources by Calderón, José S

“…Little is known about the magnitude of microbial pollutant loads to rivers from nonpoint sources such as sewer overflows, sewer exfiltration, or open…”
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Phytochemical and Biochemical Characterization of Epimeric Photogedunin Derivatives. Their Different Sites of Interaction on the Redox Electron Transport Carrier of Spinacea o leracea L. Chloroplasts by Céspedes, Carlos L, Calderón, José S, King-Diaz, Beatriz, Lotina-Hennsen, Blas

“…Bioactivity-directed fractionation of the dichloromethane extract of the heartwood of Cedrela salvadorensis L. resulted in the isolation of two epimeric…”
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Phytogrowth properties of limonoids isolated from Cedrela ciliolata by CESPEDES, C. L, CALDERON, J. S, GOMEZ-GARIBAY, F, SEGURA, R, KING-DIAZ, B, LOTINA-HENNSEN, B

“…An epimeric mixture of the limonoid photogedunin, isolated from the heartwood of C. ciliolata, as well as its R- and S-acetate derivative were evaluated for…”
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Synthesis OF (1 R ,2 R ,7 R ,7a S )-1-Hydroxymethyl-2,3,5,6,7,7a-Hexahydropyrrolizidine-1,2,7-TRIOL from Rosmarinine Degradation by Nieto-Alvarez, David Aaron, CalderÓn, JosÉ S., Mancilla, Teresa

“…A novel tetrahydroxypyrrolizidine alkaloid ( 6 ) was obtained from rosmarinine degradation in 23% yield (isolated from Senecio callosus )…”
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