Search Results - "Quiñones, Winston"

Screening of Indanoyl-Type Compounds as Elicitors of Isoflavonoid Phytoalexins in Colombian Common Bean Cultivars by Aristizábal, Diego, Gil, Jesús, Quiñones, Winston, Durango, Diego

“…Eleven indanoyl derivatives were synthesized and, along with methyl jasmonate, evaluated as isoflavonoid-phytoalexin elicitors in two cultivars of common bean…”
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Antifungal activity against anthracnose-causing species of homopterocarpin derivatives by Martinez, Janio, Ramírez, Cesar, Gil, Jesús, Quiñones, Winston, Durango, Diego

“…Derivatives of 3,9-dimethoxypterocarpan (1, homopterocarpin) were prepared by nitration, amination, and oxidation reactions, among others, and their antifungal…”
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Effect of salicylic acid and structurally related compounds in the accumulation of phytoalexins in cotyledons of common bean (Phaseolus vulgaris L.) cultivars by Durango, Diego, Pulgarin, Natalia, Echeverri, Fernando, Escobar, Gustavo, Quiñones, Winston

“…In the present work, isoflavonoid phytoalexin production in response to the application of salicylic acid in cotyledons of four common bean (Phaseolus…”
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In vivo Antimalarial Activity of α-Mangostin and the New Xanthone δ-Mangostin by Upegui, Yulieth, Robledo, Sara M., Gil Romero, Juan Fernando, Quiñones, Winston, Archbold, Rosendo, Torres, Fernando, Escobar, Gustavo, Nariño, Bibiana, Echeverri, Fernando

“…Based on the previously reported in vitro antiplasmodial activity of several xanthones from Garcinia mangostana, two xanthones, α‐mangostin and a new compound,…”
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Methyl-N-methylanthranilate, a pungent compound from Citrus reticulata Blanco leaves by Correa, Edwin, Quiñones, Winston, Echeverri, Fernando

“…Context: More analgesic compounds are needed in medicine against pain since the available drugs displayed secondary effects. Natural products are a source of…”
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Isoflavonoid composition and biological activity of extracts from soybean seedlings treated by different elicitors by Durango, Diego, Murillo, Jennifer, Echeverri, Fernando, Escobar, Gustavo, Quiñones, Winston

“…Time-course and dose-response experiments were carried out to establish the ability for synthesizing isoflavonoids of soybean seedlings (cv. Soyica P34)…”
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Elicitation of isoflavonoids in Colombian edible legume plants with jasmonates and structurally related compounds by Gómez, Karen, Quenguan, Franklin, Aristizabal, Diego, Escobar, Gustavo, Quiñones, Winston, García-Beltrán, Olimpo, Durango, Diego

“…Common bean (Phaseolus vulgaris L.), soybean (Glycine max L.) and mung bean (Vigna radiata L. Wilczek) seedlings were treated with methyl jasmonate (MeJA);…”
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Antileishmanial activity and cytotoxicity of ent-beyerene diterpenoids by Murillo, Jilmar A., Gil, Juan F., Upegui, Yulieth A., Restrepo, Adriana M., Robledo, Sara M., Quiñones, Winston, Echeverri, Fernando, San Martin, Aurelio, Olivo, Horacio F., Escobar, Gustavo

“…[Display omitted] We describe the in vitro activity of two natural isomeric ent-beyerene diterpenes, several derivatives and synthetic intermediates…”
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Coumaro-chalcones synthesized under solvent-free conditions as potential agents against malaria, leishmania and trypanosomiasis by Cuellar, José E., Quiñones, Winston, Robledo, Sara, Gil, Jesús, Durango, Diego

“…Leishmaniasis, trypanosomiasis, and malaria are a group of neglected tropical diseases present in tropical regions and they affect large numbers of people in…”
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Mode of action of a formulation containing hydrazones and saponins against leishmania spp. Role in mitochondria, proteases and reinfection process by Upegui Zapata, Yulieth A., Echeverri, Fernando, Quiñones, Winston, Torres, Fernando, Nacher, Montserrat, Rivas, Luis I., Meira, Camila dos Santos, Gedamu, Lashitew, Escobar, Gustavo, Archbold, Rosendo, Vélez, Iván D., Robledo, Sara M.

“…Toxicity and poor adherence to treatment that favors the generation of resistance in the Leishmania parasites highlight the need to develop better…”
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Effects of diterpenes from latex of Euphorbia lactea and Euphorbia laurifolia on human immunodeficiency virus type 1 reactivation by Avila, Liliana, Perez, Moises, Sanchez-Duffhues, Gonzalo, Hernández-Galán, Rosario, Muñoz, Eduardo, Cabezas, Fabio, Quiñones, Winston, Torres, Fernando, Echeverri, Fernando

“…Through bioassays, three diterpenes were isolated and characterized by spectroscopic analysis from Euphorbia laurifolia and Euphorbia lactea; differential and…”
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Increased accumulation of isoflavonoids in common bean (Phaseolus vulgaris L.) tissues treated with 1-oxo-indane-4-carboxylic acid derivatives by Botero, Leidy, Vizcaíno, Samuel, Quiñones, Winston, Echeverri, Fernando, Gil, Jesús, Durango, Diego

“…•Eleven indanoyl derivatives as potential elicitors were synthesized and characterized.•Accumulation of nine isoflavonoid phytoalexins in two common bean (P…”
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In vitro and in silico anti-dengue activity of compounds obtained from Psidium guajava through bioprospecting by Trujillo-Correa, Andrea Isabel, Quintero-Gil, Diana Carolina, Diaz-Castillo, Fredyc, Quiñones, Winston, Robledo, Sara M, Martinez-Gutierrez, Marlen

“…For decades, bioprospecting has proven to be useful for the identification of compounds with pharmacological potential. Considering the great diversity of…”
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O-Methylation of phenylphenalenone phytoalexins in Musa acuminata and Wachendorfia thyrsiflora by Otálvaro, Felipe, Jitsaeng, Kusuma, Munde, Tobias, Echeverri, Fernando, Quiñones, Winston, Schneider, Bernd

“…Labelled precursors were used to study biosynthetic O-methylation in various positions of the backbone of phenylphenalenones by NMR spectroscopic methods. The…”
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Phenalenone-Type Compounds from Musa acuminata var. “Yangambi km 5” (AAA) and Their Activity against Mycosphaerella fijiensis by Otálvaro, Felipe, Nanclares, Juliana, Vásquez, Luz Estella, Quiñones, Winston, Echeverri, Fernando, Arango, Rafael, Schneider, Bernd

“…Two perinaphthenone-type compounds (1 and 2) were isolated together with four known phenylphenalenones (3−6) from the rhizomes of Musa acuminata var. “Yangambi…”
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Leishmanicidal activity of aliphatic and aromatic lactones: correlation structure-activity by Castaño, Marcela, Cardona, Wilson, Quiñones, Winston, Robledo, Sara, Echeverri, Fernando

“…Several aliphatic and aromatic lactones and two dimers were synthesized using the sequence: allylation - esterification - metathesis. These compounds were…”
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In vitro anti-influenza screening of several Euphorbiaceae species: Structure of a bioactive Cyanoglucoside from Codiaeum variegatum by Forero, Jorge Eduardo, Avila, Liliana, Taborda, Natalia, Tabares, Paula, López, Albeiro, Torres, Fernando, Quiñones, Winston, Bucio, María A., Mora-Pérez, Yolanda, Rugeles, Maria Teresa, Joseph-Nathan, Pedro, Echeverri, Fernando

“…A bio-guided screening against influenza A virus (FLUAV) was carried out with seven Euphorbiaceae species. The results showed that Phyllantus niruri, Euphorbia…”
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6-(1,3-Dihydroxy-3-phenylpropylidene)-5-hydroxy-2,2,4-trimethylcyclohex-4-ene-1,3-dione by Echeverri, Fernando, Gil, Juan, Quiñones, Winston, Correa, Edwin

“…A novel compound involved in the aroma of the fruit Campomanesia lineatifolia was isolated; the structure was determined by spectroscopic methods, mainly 1D…”
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Leishmanicidal activity of passifloricin A and derivatives by Cardona, Wilson, Quiñones, Winston, Echeverri, Fernando

“…Several natural and hemisyntetic passifloricins were assayed against Leishmania panamensis amastigotes. High leishmanicidal activity as well as toxicity was…”
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Leishmanicidal activity of Pycnoporus sanguineus by Correa, Edwin, Cardona, Diana, Quiñones, Winston, Torres, Fernando, Franco, Ana E., Vélez, Ivan D., Robledo, Sara, Echeverri, Fernando

“…In the search for antiparasite compounds from the Colombian flora, an active compound against Leishmania (Viannia) panamensis amastigotes was isolated from the…”
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