Search Results - "Ravelo, Angel G"

Dichloromethane as a Solvent for Lipid Extraction and Assessment of Lipid Classes and Fatty Acids from Samples of Different Natures by Cequier-Sánchez, Elena, Rodríguez, Covadonga, Ravelo, Ángel G, Zárate, Rafael

“…The usefulness of the solvent mixture dichloromethane/methanol for lipid extraction and the determination of lipid classes and fatty acids in samples of…”
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β‑Agarofurans and Sesquiterpene Pyridine Alkaloids from Maytenus spinosa by Gutiérrez-Nicolás, Fátima, Oberti, Juan C, Ravelo, Ángel G, Estévez-Braun, Ana

“…Nine new β-dihydroagarofurans (1–9) and four new sesquiterpene pyridine alkaloids (10–13) were isolated from the leaves of Maytenus spinosa. Their structures…”
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Antiproliferative and Structure Activity Relationships of Amaryllidaceae Alkaloids by Cedrón, Juan C, Ravelo, angel G, León, Leticia G, Padrón, Jose M, Estevez-Braun, Ana

“…The antiproliferative activity of a set of seven natural Amaryllidaceae alkaloids and 32 derivatives against four cancer cell lines (A2780, SW1573, T47-D and…”
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Multicomponent Synthesis of Antibacterial Dihydropyridin and Dihydropyran Embelin Derivatives by Peña, Rosalyn, Jiménez-Alonso, Sandra, Feresin, Gabriela, Tapia, Alejandro, Méndez-Alvarez, Sebastián, Machín, Félix, Ravelo, Ángel G, Estévez-Braun, Ana

“…A series of dihydropyran and dihydropyridin embelin derivatives were synthesized through a novel and straightforward one-pot protocol based on a…”
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Synthesis and antimalarial activity of new haemanthamine-type derivatives by Cedrón, Juan C., Gutiérrez, David, Flores, Ninoska, Ravelo, Ángel G., Estévez-Braun, Ana

“…Thirty one derivatives were prepared from the natural alkaloids haemanthamine (1), haemanthidine (2) and 11-hydroxyvittatine (3). They were evaluated for their…”
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Synthesis and Anti-HIV Activity of Lupane and Olean-18-ene Derivatives. Absolute Configuration of 19,20-Epoxylupanes by VCD by Gutiérrez-Nicolás, Fátima, Gordillo-Román, Bárbara, Oberti, Juan C, Estévez-Braun, Ana, Ravelo, Ángel G, Joseph-Nathan, Pedro

“…Lupane triterpenoids 2 and 5–12 and oleanene derivatives 13 and 14 were prepared from lupeol (1), betulin (3), and germanicol (4). They were tested for…”
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Synthesis and antiplasmodial activity of lycorine derivatives by Cedrón, Juan C., Gutiérrez, David, Flores, Ninoska, Ravelo, Ángel G., Estévez-Braun, Ana

“…Twenty seven lycorine derivatives were prepared and evaluated for their in vitro antimalarial activity against chloroquine-sensitive strains of Plasmodium…”
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Benzodihydrofurans from Cyperus teneriffae by Amesty, Ángel, Burgueño-Tapia, Eleuterio, Joseph-Nathan, Pedro, Ravelo, Ángel G, Estévez-Braun, Ana

“…Three new benzodihydrofurans (1–3) and seven known aromatic compounds (4–10) were isolated from the roots of Cyperus teneriffae. Vibrational circular dichroism…”
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Achyrofuran is an antibacterial agent capable of killing methicillin-resistant vancomycin-intermediate Staphylococcus aureus in the nanomolar range by Casero, Carina, Estévez-Braun, Ana, Ravelo, Ángel G., Demo, Mirta, Méndez-Álvarez, Sebastián, Machín, Félix

“…Currently, there is a pressing need for novel antibacterial agents against drug-resistant bacteria, especially those which have been common in our communities…”
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Synthesis and study of antiproliferative, antitopoisomerase II, DNA-intercalating and DNA-damaging activities of arylnaphthalimides by Quintana-Espinoza, Patricia, García-Luis, Jonay, Amesty, Ángel, Martín-Rodríguez, Patricia, Lorenzo-Castrillejo, Isabel, Ravelo, Angel G., Fernández-Pérez, Leandro, Machín, Félix, Estévez-Braun, Ana

“…A series of arylnaphthalimides were designed and synthesized to overcome the dose-limiting cytotoxicity of N-acetylated metabolites arising from amonafide, the…”
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Recent studies on natural products as anticancer agents by Ravelo, Angel G, Estévez-Braun, Ana, Chávez-Orellana, Haydee, Pérez-Sacau, Elisa, Mesa-Siverio, Dulce

“…Cancer will be the major cause of death in the 21st century and natural products should provide novel and more effective anticancer agents. This review deals…”
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Cytotoxic Triterpenoids from Maytenus retusa by Oramas-Royo, Sandra M, Chávez, Haydee, Martín-Rodríguez, Patricia, Fernández-Pérez, Leandro, Ravelo, Ángel G, Estévez-Braun, Ana

“…Seven new triterpenoids (1−7) and 36 known compounds were isolated from the root bark of Maytenus retusa. Their structures were determined by 1D and 2D…”
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Synthesis and anti-inflammatory activity of ent-kaurene derivatives by Hueso-Falcón, Idaira, Cuadrado, Irene, Cidre, Florencia, Amaro-Luis, Juan M., Ravelo, Ángel G., Estevez-Braun, Ana, de las Heras, Beatriz, Hortelano, Sonsoles

“…A series of kaurene derivatives ( 1– 63) were prepared and evaluated for anti-inflammatory activity. Thirteen of the tested compounds were able to inhibit NO…”
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Preparation and antimalarial activity of semisynthetic lycorenine derivatives by Cedrón, Juan C., Gutiérrez, David, Flores, Ninoska, Ravelo, Ángel G., Estévez-Braun, Ana

“…A set of twenty one lycorenine derivatives has been prepared from the alkaloid hippeastrine (1). The modifications performed on hippeastrine included some…”
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Preparation, anticholinesterase activity and molecular docking of new lupane derivatives by Castro, María Julia, Richmond, Victoria, Romero, Carmen, Maier, Marta S., Estévez-Braun, Ana, Ravelo, Ángel G., Faraoni, María Belén, Murray, Ana Paula

“…A series of twenty-one lupane derivatives were synthesized from the natural triterpenoid calenduladiol (1) and evaluated for acetyl- and butyrylcholinesterase…”
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Echium acanthocarpum hairy root cultures, a suitable system for polyunsaturated fatty acid studies and production by Cequier-Sánchez, Elena, Rodríguez, Covadonga, Dorta-Guerra, Roberto, Ravelo, Angel G, Zárate, Rafael

“…The therapeutic and health promoting role of highly unsaturated fatty acids (HUFAs) from fish, i.e. eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic…”
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Triterpenoids and a Lignan from the Aerial Parts of Maytenus apurimacensis by Vazdekis, Nabil E. J, Chávez, Haydee, Estévez-Braun, Ana, Ravelo, Ángel G

“…Five new triterpenes (1−5) and one new lignan (6) were isolated from the aerial parts of Maytenus apurimacensis. Their structures were determined on the basis…”
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New terpenoids from Maytenus apurimacensis as MDR reversal agents in the parasite Leishmania by Delgado-Méndez, Paulino, Herrera, Nora, Chávez, Haydee, Estévez-Braun, Ana, Ravelo, Ángel G., Cortes, Fernando, Castanys, Santiago, Gamarro, Francisco

“…Two new sesquiterpenes ( 1– 2) and one new lupane triterpene ( 3) have been isolated from the roots of Maytenus apurimacensis. The novel β-dihydroagarofurans…”
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Cloning, characterization and analysis of expression profiles of a cDNA encoding a hyoscyamine 6β-hydroxylase (H6H) from Atropa baetica Willk by el Jaber-Vazdekis, Nabil, González, Celedonio, Ravelo, Ángel G., Zárate, Rafael

“…A new cDNA encoding hyoscyamine 6β-hydroxylase (H6H, EC 1.14.11.11), a bifunctional enzyme catalyzing the last two steps in the biosynthesis of scopolamine,…”
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Tailoring tropane alkaloid accumulation in transgenic hairy roots of Atropa baetica by over-expressing the gene encoding hyoscyamine 6β-hydroxylase by ZARATE, Rafael, EL JABER-VAZDEKIS, Nabil, MEDINA, Braulio, RAVELO, Angel G

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