Browsing by Author "Timmermann, BN"
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- ItemA new antitubercular mulinane diterpenoid from Azorella madreporica Clos(1998) Wächter, GA; Franzblau, SG; Montenegro, G; Suarez, E; Fortunato, RH; Saavedra, E; Timmermann, BNBioactivity-guided fractionation of the petroleum ether extract of Azorella madreporica Clos has led to the isolation of the novel, antitubercular mulinane diterpenoid 1. The structure has been elucidated on the basis of its 1D and 2D NMR spectra and by comparison with mulinolic acid 2 and a dehydration product 3 obtained from 1. The MIC of 1 for growth inhibition of the H(37)Rv Strain of Mycobacterium tuberculosis' was determined as 20 mu g/mL. LC-MS and NMR have suggested the presence of this new compound in four other species of Azorella.
- ItemAntitubercular activity of pentacyclic triterpenoids from plants of Argentina and Chile(1999) Wachter, GA; Valcic, S; Flagg, ML; Franzblau, SG; Montenegro Rizzardini, Gloria; Suarez, E; Timmermann, BN
- ItemConstituents of Quinchamalium majus with potential antitubercular activity(2004) Gu, JQ; Wang, YH; Franzblau, SG; Montenegro Rizzardini, Gloria; Timmermann, BN
- ItemFlavonoids and terpenoids from Luma gayana (Barn.) Burret(1999) Wachter, GA; Wangmaneerat, A; Caple, KM; Montenegro Rizzardini, Gloria; Timmermann, BN
- ItemIdentification of nematicidal fatty acids and triglycerides from seeds of Jubaea chilensis by GCEIMS and chemical transformation methods(2005) Gu, JQ; Eppler, CM; Montenegro Rizzardini, Gloria; Timmins, SD; Timmermann, BN
- ItemPhenolic compounds of propolis from central Chilean matorral(2001) Munoz, O; Pena, RC; Ureta, E; Montenegro Rizzardini, Gloria; Caldwell, C; Timmermann, BN
- ItemPhytochemical, morphological, and biological investigations of propolis from Central Chile(1999) Valcic, S; Montenegro Rizzardini, Gloria; Mujica Rizzardini, Ana María; Avila, G; Franzblau, S; Singh, MP; Maiese, WM; Timmermann, BN
- ItemPollen grains and vegetative structures in propolis as indicators of potential drugs in Chilean plants(2000) Montenegro Rizzardini, Gloria; Timmermann, BN; Pena, RC; Mujica Rizzardini, Ana María; Avila, G
- ItemPropolis from Chilean matorral hives(2001) Munoz, O; Pena, RC; Ureta, E; Montenegro Rizzardini, Gloria; Timmermann, BN
- ItemSimilitude Pattern and Botanical Origin of the Chilean Propolis: [with 2 figures & 4 tables](2004) Montenegro Rizzardini, Gloria; Mujica Rizzardini, Ana María; Peña, RC; Gómez, M; Serey, I; Timmermann, BN
- ItemThe Latin American ICBG: The first five years(1999) Timmermann, BN; Wachter, G; Valcic, S; Hutchinson, B; Casler, C; Henzel, J; Ram, S; Currim, F; Manak, R; Montenegro Rizzardini, Gloria; Franzblau, S; Maiese, W; Galinis, D; Suarez, E; Fortunato, R; Saavedra, E; Bye, R; Mata, R.
- ItemThe structure of the pollen grains and trichomes as indicators of the specific origin of propolis.(1996) Montenegro Rizzardini, Gloria; Mujica Rizzardini, Ana María; Timmermann, BN; Valcic, S
- ItemTriterpenoids from Acaena pinnatifida R et P(1997) Valcic, S; Wachter, GA; Montenegro Rizzardini, Gloria; Timmermann, BN