Listar Química por autor "0283d9ec-f1a9-42da-899a-a48077c6b5e3"

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    • Characterization and Isolation of Piperamides from Piper nigrum cultivated in Costa Rica 

      Vargas Huertas, Luis Felipe; Alvarado Corella, Luis Diego; Sánchez Kopper, Andrés; Araya Sibaja, Andrea Mariela; Navarro Hoyos, Mirtha (2023-11-30)
      The piperamides profile of Piper nigrum cultivated in Costa Rica was studied using Ultra Perfor-mance Liquid Chromatography coupled with Electrospray Ionization Quadrupole Time-of-Flight High Resolution Mass Spectrometry ...

    • Efficient syntheses of streptocarpone and (±)-a-dunnione 

      Pérez Sánchez, Alice Lorena; Lamoureux Lamontagne, Guy; Sánchez Kopper, Andrés (2007)
      An efficient divergent synthesis of both streptocarpone and racemic α-dunnione from lawsone are described. A one-pot, formal [3+2] cyclization to form a furanonaphthoquinone directly provided a common intermediate.

    • Polyphenolic HRMS Characterization, Contents and Antioxidant Activity of Curcuma longa rhizomes from Costa Rica 

      Quirós Fallas, María isabel; Vargas Huertas, Luis Felipe; Quesada Mora, Silvia; Azofeifa Cordero, Gabriela; Wilhelm Romero, Krissia; Vásquez Castro, Felipe; Alvarado Corella, Luis Diego; Sánchez Kopper, Andrés; Navarro Hoyos, Mirtha (2022-03)
      Curcuma longa constitutes an important source of secondary metabolites that have been associated with multiple health benefits. For instance, curcumin, demethoxycurcumin and bisdemethoxy-curcumin, have been found to perform ...

    • UPLC-HRMS Polyphenolic Characterization, Contents and Antioxidant Activity of Zingiber officinale Roscoe rhizomes from Costa Rica 

      Navarro Hoyos, Mirtha; Acuña Quirós, Mónica; Quirós Fallas, María isabel; Vargas Huertas, Luis Felipe; Wilhelm Romero, Krissia; Vásquez Castro, Felipe; Alvarado Corella, Luis Diego; Sánchez Kopper, Andrés (2022)
      Zingiber offcinale Roscoe rhizomes have been associated with multiple health benefits, such as blocking blood clotting, digestive and antinausea effects and aid in respiratory conditions. These effects have been linked ...