Now showing items 1-20 of 26

    • (25R)-Isonuatigenin, an unusual steroidal sapogenin from Vestia lycioides 

      Faini, Francesca; Torres, René; Castillo, Mariano (1984)
      (25R)-Isonuatigenin, a 5-spirosten-3β,25-diol, was isolated from aerial parts of Vestia lycioides. Its structure was elucidated mainly by 1H NMR and 13C NMR spectroscopy. A mixture of (25R)-nuatigenin and (25S)-isonuatigenin ...
    • A new β-carboline alkaloid from Vestia lycioides 

      Faini, Francesca; Castillo, Mariano; Torres, Rene (1978)
    • Antioxidant activity of coumarins and flavonols from the resinous exudate of Haplopappus multifolius 

      Torres, René; Faini, Francesca; Modak, Brenda; Zúñiga Urbina, Francisco; Labbé, Cecilia; Guerrero, Juan (PERGAMON-ELSEVIER SCIENCE LTD, 2006-05)
      The antioxidant activity of eight coumarins and two flavonols isolated from Haplopappus multifolius was studied with the DPPH radical method. Results show that a high concentration of phenolic coumarins and the presence ...
    • Antioxidant capacity of abietanes from Sphacele salviae 

      Escuder, B.; Torres, R.; Lissi, E.; Labbé, C.; Faini, Francesca (2002)
      Carnosol 1, rosmanol 2, carnosic acid 3 and 20-deoxocarnosol 4, the main phenolic abietanes present in aerial parts of the Chilean medicinal plant Sphacele salviae were tested for antioxidant activity of measuring the decay ...
    • Antioxidant properties and TLC characterization of four Chilean Haplopappus-species known as bailahuén 

      Vogel, Hermine; González, Mauricio; Faini, Francesca; Razmilic, Iván; Rodríguez, Jaime; San Martín, José; Urbina, Francisco (ELSEVIER, 2005-02-10)
      "Bailahuen" is the common name of a medicinal shrub native to Chile where this resinous herb is widely used for its liver stimulating properties. Although the official species is Haplopappus baylahuen Remy (Asteraceae), ...
    • Bakuchiol derivatives from the leaves of Psoralea glandulosa 

      Labbé, Cecilia; Faini, Francesca; Coll, Joseph; Connolly, Joseph D. (Elsevier Ltd, 1996)
      Four new meroterpene derivatives have been isolated in a bioassay- guided study of the methanol extract of the leaves of Psoralea glandulosa, in addition to the known compounds bakuchiol and angelicin. Structures for the ...
    • Chemistry, toxicity and antifeedant activity of the resin of Flourensia thurifera 

      Faini, Francesca; Labbé, Cecilia; Salgado, Italo; Coll, Josep (1997)
      The resin extract from leaves and stems of Flourensia thurifera displayed high levels of activity in the brine shrimp (Artemia salina) and antifeedant disk-choice (Spodoptera littoralis) bioassays. A bioassay-guided ...
    • Costunolide and Flavonols from Gochnatia Foliosa Var. Fascicularis 

      Faini, Francesca; Castillo, Mariano; Torres, René (1984)
      As part of a systematic chemical investigation of Chilean Compositae (1-3), we examined the secondar chemistry of a member of the genus Gochnatia (tribe Mutisieae, subtribe Gochnatiinae): Gochnatia foliosa var. fscicularia ...
    • Coumarins of haplopappus multifolius and derivative as inhibitors of lox: Evaluation in-vitro and docking studies 

      Torres, Rene; Mascayano, Carolina; Núñez, Carolina; Modak, Brenda; Faini, Francesca (Sociedad Chilena de Quimica, 2013)
      Several natural compounds containing a coumarin moiety have been reported. They have multiple biological activities, e. g. , as scavengers of reactive oxygen species (ROS) and to reduce the inflammatory processes by ...
    • Crystal structure of 9-trans-p-coumaroyloxy-α-terpineol, C 19H24O4 

      Faini, Francesca; Gonzalez, Francisca Sanz; Labbé, Cecilia; Rodilla, Jesús M.; Torres, René; Rocha, Pedro M.; Monache, Franco Delle (2009)
      C19H24O4, monoclinic, P21 (no. 4), a = 9.231(2) Å, b= 16.318(3) Å, c= 11.647(2) Å, β = 91.31(3)°, V = 1753.9 Å3, Z = 4, Rgt(F) = 0.045, wRref(F2) = 0.124, T = 293 K. © by Oldenbourg Wissenschaftsverlag.
    • Crystal structure of 9-trans-P-coumaroyloxy-α-terpineol, C19H24O4 

      Faini, Francesca; Gonzalez, Francisca Sanz; Labbé, Cecilia; Rodilla, Jesús M.; Torres, René; Rocha, Pedro M.; Monache, Franco Delle (2009)
      C19H24O4, monoclinic, P21 (no. 4), a = 9.231(2) Å, b = 16.318(3) Å, c = 11.647(2) Å, β = 91.31(3)°, V = 1753.9 Å3, Z = 4, Rgt(F) = 0.045, wRref(F2) = 0.124, T =293 K. © 2014 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer ...
    • Crystal structure of taedol, C10H16O2, from Haplopappus taeda 

      Torres, R.; Faini, Francesca; Rodilla, M. L.; Silva, L. A.; Sanz, F. (ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2005)
      C10H16O2, monoclinic, P1211 (no. 4), α = 8.974(2) …, b = 5.933(1) …, c = 8.994(2) …, β = 96.29(3), V = 476.0 …3, Z = 2, Rgt(F) = 0.052, wRobs(F2) = 0.148, T = 293 K.
    • Crystal structure of taedol, C10H16O2,from Haplopappus Taeda 

      Torres, R.; Faini, Francesca; Rodilla, J. M.L.; Silva, L. A.; Sanz, F. (2005)
      C10H16O2, monoclinic, P121l (no. 4), a = 8.974(2) Å, b = 5.933(1) Å, c = 8.994(2) Å,β = 96.29(3)°, V= 476.0 Å3, Z= 2, Rgt(F) = 0.052, wRobs(F2) = 0.148, T=293 K. © 2005, Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer ...
    • Diterpenes from Haplopappus chrysanthemifolius 

      Faini, Francesca; Labbé, Cecilia; Torres, René; Delle Monache, Franco; Delle Monache, Giuliano (1999)
      Three new diterpenes were isolated from the aerial part of Haplopappus chrysanthemifolius and assigned the structures 6α-hydroxy-ent-labd-8(17)-en- 15-oic acid, 3β-acetoxy-ent-labd-8(17)-en-15-oic acid and 18α-acetoxylabd- ...
    • Diterpenoids from chilean Baccharis species 

      Labbé, Cecilia; Faini, Francesca; Castillo, Mariano (1990)
      Two new ent-labdanes were isolated from the leaves of Baccharis paniculata. The results of a chemical study of other three Baccharis species are reported. © 1990.
    • Flavonoids of Baccharis incarum 

      Faini, Francesca; Castillo, Mariano; Torres, M. René (1982)
    • Hybridization in the Genus Baccharis : Baccharis linearis χ B. macraei 

      Faini, Francesca; Hellwlg, Frank; Labbé, Cecilia; Castillo, Mariano (1991)
      On morphological, chemical composition and field distribution studies, the hybrid condition of Baccharis χ intermedia DC. is discussed. B. linearis (Ruiz et Pavón) Pers. and B. macraei Hook, et Arn. are the parental species. ...
    • Labdane diterpenes from Haplopappus illinitus 

      Faini, Francesca; Labbé, C.; Torres, R.; Monache, G. D.; Monache, F. D. (2002)
      A chemical study of aerial parts of Haplopappus illinitus afforded five labdane diterpenoids whose structures were elucidated by high field NMR spectroscopy and 2D techniques. Four of them are dicarboxylic acids previously ...
    • Neo-clerodane diterpenoids and other constituents from Baccharis species 

      Faini, Francesca; Rivera, Patricio; Mahú, Manuel; Castillo, Mariano (1987)
      A new neo-clerodane dilactone, desoxyarticulin, and dihydrotucumanoic acid, together with other known compounds, were isolated from Baccharis pedicellata and Baccharis marginalis. The structures of the new compounds were ...
    • New phenolic esters from the resinous exudate of Haplopappus taeda 

      Faini, Francesca; Labbé, Cecilia; Torres, René; Rodilla, Jesús M.; Silva, Lucía; Monache, Franco Delle (2007)
      Two new phenolic esters 9-trans-p-coumaroyloxy-α-terpineol (1) and 7-trans-p-coumaroyloxy-taedol (2), both endowed with free radical scavenger activity and cleroda-3,13 (E)-dien-15,18-diol (3) for which a cis stereochemistry ...