Browsing by Author "201-0172098"

Now showing items 1-9 of 9

    • Absolute Configuration Determination and Conformational Analysis of (2)-(3S,6S)-3a,6b-Diacetoxytropane Using ... 
      Muñoz, Marcelo A.; Muñoz Muñoz, Orlando; Joseph-Nathan, Pedro (Wiley InterScience, 2010)
      The absolute configuration of semisynthetic (2)-3a,6b-acetoxytropane 1, prepared from (2)-6b-hydroxyhyoscyamine 2, has been determined using vibrational circular dichroism (VCD) spectroscopy. The vibrational spectra (IR ...
    • Analgesic-antiinflammatory properties of Proustia pyrifolia 
      Delporte Vergara, Carla; Backhouse Erazo, Nadine; Erazo, Silvia; Negrete Córdova, Rosa; Vidal, P.; Silva, X.; López Pérez, J. L.; San Feliciano, Arturo; Muñoz Muñoz, Orlando (ELSEVIER IRELAND LTD, 2005-05-13)
      The anti inflammatory (per os and topic) and analgesic (per os) properties of the aerial part of Proustia pyrifolia a species in danger of extinction were investigated, and the major. compound"s of two of its active extracts ...
    • Analysis of isomeric tropane alkaloids from Schizanthus grahamii by very fast gas chromatography 
      Bieri, Stefan; Muñoz Muñoz, Orlando; Veuthey, Jean-Luc; Christen, Philippe (WILEY-V C H VERLAG GMBH, 2006-01)
      This study presents a very fast GC analysis applied for the baseline separation of isomeric tropane alkaloids extracted from the stem-bark of Schizanthus grahamii (Solanaceae). The work provided a challenging application ...
    • Anthocyanins in berries of Maqui (Aristotelia chilensis (Mol.) Stuntz) 
      Escribano Bailón, María Teresa; Alcalde Eon, Cristina; Muñoz Muñoz, Orlando; Rivas Gonzalo, Julián C.; Santos Buelga, Celestino (JOHN WILEY & SONS, 2006-06)
      The anthocyanin composition of berries of Maqui [Aristotelia chilensis (Mol.) Stuntz] was deter-mined by HPLC with photodiode array and MS detection. Eight pigments corresponding to the 3-glucosides, 3,5-diglucosides, ...
    • Colubrinic acid isolated from a pharmacological active extract of Trevoa trinervis Miers 
      Erazo, Silvia; Backhouse Erazo, Nadine; Delporte Vergara, Carla; Negrete Córdova, Rosa; Muñoz Muñoz, Orlando; López Pérez, J. L.; San Feliciano, Arturo (Sociedad Chilena de Química, 1998)
      From Trevoa trinervis Miers (Rhammnaceae), a plant used in Chilean folklore medicine, a triterpenoid called colubrinic acid, has been isolated from a pharmacological active extract. Its structure has been established by ...
    • Isomeric Tropane Alkaloids from the Aerial Parts of Schizanthus tricolor 
      Cretton, Sylvian; Glauser, Gaetan; Humam, Munir; Jeannerat, Damien; Muñoz Muñoz, Orlando; Maes, Louis; Christen, Philippe; Hostettmann, Kurt (AMER CHEMICAL SOC, 2010-02-18)
      Investigation of the aerial parts of Schizanthus tricolor yielded seven isomeric tropane alkaloids: 3 alpha-(1-methylitaconyl)-6 beta-senecioyloxytropane 3a-(1-methylitaconyl)-6 beta-angeloyloxytropane (2), 3 alpha-(1-me ...
    • Tropane alkaloids of the aerial parts of Schizanthus tricolor 
      Humam, Munir; Muñoz Muñoz, Orlando; Christen, Philippe; Hostettmann, Kurt (2007)
      The alkaloid profile of the aerial parts of Schizanthus tricolor Grau et Gronbach was investigated by GC-MS. Seventeen alkaloids were detected and are reported in this species for the first time. They were identified by ...
    • Two new dammarane triterpenoids from Kageneckia angustifolia D. Don 
      López Pérez, J. L.; Erazo, Silvia; Delporte Vergara, Carla; Negrete Córdova, Rosa; Muñoz Muñoz, Orlando; García, R.; Backhouse Erazo, Nadine; San Feliciano, Arturo (JOHN WILEY & SONS LTD, 2005-11)
      Two new dammarane triterpenoids, 20R,21-epoxydammar-24-ene-3,23-dione and 20R,21-epoxy-3 beta-hydroxydammar-24-ene-23-one have been isolated from the aerial parts of Kageneckia angustifolia D. Don, Rosaceae, along with the ...
    • Use of porous graphitic carbon column for the separation of natural isomeric tropane alkaloids by capillary ... 
      Bieri, Stefan; Varesio, Emmanuel; Muñoz Muñoz, Orlando; Veuthey, Jean-Luc; Christen, Philippe (PERGAMON-ELSEVIER SCIENCE LTD, 2006-02-24)
      This study presents the outstanding chromatographic selectivity of a porous graphitic carbon support for the separation of four isomeric tropane alkaloids from the stem-bark of Schizanthus grahamii (Solanaceae). Capillary ...