Browsing by Author "Muñoz Muñoz, Orlando"

Now showing items 21-34 of 34

    • Inhibition of cholinergic contractions of rat ileum by tropane-type alkaloids present in Schizanthus hookeri 
      Morales, Miguel A.; Ahumada, Frederick; Castillo, Erick; Burgos, Rafael; Christen, Philippe; Bustos, Viviana; Muñoz Muñoz, Orlando (Verlag der Zeitschrift fur Naturforschung, 2013)
      The relative lack of specificity of atropine as a competitive antagonist of muscarinic receptors is a frequent cause of undesirable parasympathetic side effects. Consequently, new tropane alkaloids with potentially greater ...
    • Iridoids from Stachys grandidentata (Labiatae) 
      Muñoz Muñoz, Orlando; Peña, Raúl C.; Montenegro, Gloria (2001)
      Monomelittoside, melittoside, 8-acetyl-harpagide, har-pagide, ajugol, 5-desoxy-harpagide, 5-desoxy-8-acetyl-harpagide and catalpol were isolated from the aerial parts of S. grandidentata. © 2001, Verlag der Zeitschrift für ...
    • Paniculine Hydrobromide 
      Manríquez Castro, Víctor; Quintana, R.; Muñoz Muñoz, Orlando; Castillo, M. (MUNKSGAARD INT PUBL LTD, 1988-01-15)
      CIsH3oBrNO3, Mr=388.3, triclinic, P1, a=7-999(2), b=15-549(7), c=7-929(2)A, a= 103.52 (3), fl= 105.57 (2), ),=86.89 (3) ° , V= 923.7 (6)/k 3, Z = 2, D x = 1.396 g cm -3, 2(Mo K0t) = 0.71069/~, g=22.15cm -l, F(000)=408, ...
    • Pharmaco-toxicological study of Kageneckia oblonga, Rosaceae 
      Delporte Vergara, Carla; Muñoz Muñoz, Orlando; Rojas, J.; Ferrandiz, M.; Paya, M.; Erazo, Silvia; Negrete Córdova, Rosa; Maldonado, S.; San Feliciano, Arturo; Backhouse Erazo, Nadine (VERLAG Z NATURFORSCH, 2002-01)
      The probable antipyretic, antiinflammatory, analgesic and antioxidant properties of Kageneckia oblonga, Rosaceae, were investigated and the major compounds of its active extracts were isolated. The study comprised the acute ...
    • Phenolic compounds of propolis from Central Chilean matorral 
      Muñoz Muñoz, Orlando; Peña, Raúl C.; Ureta, Enrique; Montenegro, Gloria; Caldwell, Colby; Timmermann, Barbara N. (Verlag der Zeitschrift fur Naturforschung, 2001)
      Pinocembrin, acacetin, galanguin, izalpin, kaempferide, prenyletin and diarytheptane were isolated from propolis from Central Chile.
    • Propolis from Chilean matorral hives 
      Muñoz Muñoz, Orlando; Peña, Raúl C.; Ureta, Enrique; Montenegro, Gloria; Timmermann, Barbara N. (Verlag der Zeitschrift fur Naturforschung, 2001)
      Viscidone (0.5%), vanillin, 3′,4′-(methylendioxy)acetophenone, 3-ethoxy-4-methoxybenzaldehyde, cinnamic acid, 3-methoxy-4-hydroxymethyl ester were isolated from propolis of hives from Cuncumen. This is the first report on ...
    • Schizanthines N, O, and P, Tropane Alkaloids from the Aerial Parts of Schizanthus tricolor 
      Humam, Munir; Kehrli, Thomas; Jeannerat, Damien; Muñoz Muñoz, Orlando; Hostettmann, Kurt; Christen, Philippe (AMER CHEMICAL SOC, 2011-01)
      Three tropane alkaloids, named schizanthines N, O, and P (1-3), have been isolated from the crude alkaloid extract of the endemic Chilean plant Schizanthus tricolor. On the basis of extensive NMR studies and MS fragmentation ...
    • Schizanthus grahamii and Schizanthus hookeri. Is there any relationship between their anthocyanin compositions ... 
      Alcalde Eon, C.; Rivas Gonzalo, Julián C.; Muñoz Muñoz, Orlando; Escribano Bailón, M. T. (Elsevier, 2013)
      Three different pollination syndromes (bee, hummingbird and moth-pollination syndromes) have been described for the different species of the genus Schizanthus Ruiz & Pav. (Solanaceae). Two closely related species from a ...
    • The isolation and structure determination of chilenone A, a putative dimer of 2-methyl-3(2H)-furanone from ... 
      San Martín Barrientos, Aurelio; Rovirosa, Juana; Muñoz Muñoz, Orlando; Chen, Marie H M; Guneratne, Ranil D.; Clardy, Jon (1983)
      The isolation of chilenone A from Laurencia chilensis and the determination of its structure by spectral and x-ray crystallographic techniques is described. © 1983.
    • The Terpenoids of Maytenus boaria MOL. (Celastraceae) 
      Muñoz Muñoz, Orlando; Ruiz, Roberto; Gonzáles, Antonio; Nüñez, Mercedes P.; Jiménez, Ignacio; Ravelo, Angel (1993)
      The known triterpenoids β‐amyrin (= olean‐12‐en‐3β‐ol; 22), lupeol (= lup‐20(29)‐en‐3β‐ol; 17), betulin (= lup‐20(29)‐ene‐3β,28‐diol; 18), lup‐20(29)‐ene‐3β,30‐diol (20), oleanolic acid (= 3β‐hydroxyolean‐12‐en‐28‐oic acid; ...
    • Triterpenoid and phenolic compounds from two Chilean Celastraceae 
      Muñoz Muñoz, Orlando; Larraguibel González, Antonio René; Ravelo, Angel; Estevez, Ana (Verlag der Zeitschrift fur Naturforschung, 1999)
      Three triterpenoid quinonemethides, one triterpene (β-amyrin) and three phenolic compounds were isolated from the roots of Maytenus chubutensis (Speg.) Lourt., O'Don. et Sleum. and Maytenus disticha (Hook. f.) (Celastraceae). ...
    • Tropane Alkaloids from Latua pubiflora 
      Muñoz Muñoz, Orlando; Casale, John F. (Verlag der Zeitschrift fur Naturforschung, 2003)
      Four known tropane alkaloids were isolated from the leaves of the endemic Chilean plant Latua pubiflora (Solanaceae). For the first time; 3α-cinnamoyloxitropane and apoatropine are reported in this plant. Scopolamine and ...
    • Tropane alkaloids from Schizanthus pinnatus 
      De La Fuente, Gabriel; Reina, Matías; Muñoz Muñoz, Orlando; San Martín Barrientos, Aurelio; Girault, Jean Pierre (1988)
      From Schizanthus pinnatus Ruiz et Pav. we have isolated seven new tropan-3α,6β-diol diesters, schizanthines F (1), G (2), H (3), I (4), K. (8), L (9), and M (10), together with tropine, (-) -6β-angeloyloxytropan-3α-ol (5), ...
    • Two new hygroline and tropane alkaloids isolated from schizanthus hookeri and S. tricolor (Solanaceae) 
      Cretton, Sylvian; Muñoz Muñoz, Orlando; Tapia, Jorge; Marcourt, Laurence; Maes, Louis; Christen, Philippe (Natural Product Incorporation, 2017)
      Two new hygroline and tropane alkaloids, 4-hydroxybenzenepropanoylhygroline (1) and 3α,4β-dihydroxy-6β-angeloyoxytropane (2) have been isolated from the aerial parts of Schizanthus hookeri and S. tricolor, respectively, ...