Browsing by Author "Vergara, Karen"

Now showing items 1-4 of 4

    • 13- EPI-NEOCLERODANES FROM BACCHARIS MARGINALIS 
      San Martín Barrientos, Aurelio; Astudillo, Luis; Gutiérrez, Margarita; Chamy, María Cristina; Orejarena, Silvia; Rivera Latorre, Augusto; Vergara, Karen (2010)
      In addition to the known diterpenes, desoxyarticulin and dihydrotucumanoic acid, a new neoclerodane diterpene was isolated from Baccharis marginalis. The structures of the compounds were elucidated by spectroscopic evidence.
    • Diversity of cultivable fungi associated with Antarctic marine sponges and screening for their antimicrobial, ... 
      Henríquez, Marlene; Vergara, Karen; Norambuena, Javiera; Beiza, Andrea; Maza, Felipe; Ubilla, Pamela; Araya, Ivanna; Chávez, Renato; San Martín Barrientos, Aurelio; Darias, José; Darias, María J.; Vaca Cerezo, Inmaculada (Springer, 2014)
      The diversity of sponge-associated fungi has been poorly investigated in remote geographical areas like Antarctica. In this study, 101 phenotypically different fungal isolates were obtained from 11 sponge samples collected ...
    • New butyrolactone from a marine-derived fungus aspergillus SP 
      San Martín Barrientos, Aurelio; Rovirosa, Juana; Vaca Cerezo, Inmaculada; Vergara, Karen; Acevedo, Laura; Viña, Dolores; Orallo, Francisco; Chamy, María Cristina (Sociedad Chilena de Quimica, 2011)
      Four compounds that belong to two structure types, namely dibenzylbutyrolactone and sesterterpenoids, were obtained from the extract of the strain Aspergillus sp. (2P-22), isolated from a marine sponge, Cliona chilensis. ...
    • Steroids from the marine fungus Geotrichum sp. 
      San Martín Barrientos, Aurelio; Orejarena, Silvia; Gallardo, Claudia; Silva, Mario; Becerra, José; Reinoso, Rodrigo; Chamy, María C.; Vergara, Karen; Rovirosa, Juana (SOC CHILENA QUIMICA, 2008-03)
      Ergosterol 1, peroxyergosterol 2, ergosta-4,6,8(14), 22-tetraen-3-one 3 and 24-ethyl-cholesta-4-ene-3-one 4 were isolated from the cultures of a fungus Geotrichum sp. obtained from a marine sediment. It was established ...