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Triterpenes from Maytenus canariensis and synthesis of a derivative from betulin
Abstract The new triterpenes 3β,28,30-lup-20(29)ene-triol and 28,30-dihydroxy-lup-20(29)-en-3-one have been isolated from Maytenus canariensis and their structures determined by means of spectral… Expand
Steroidal saponins from the bark of Dracaena draco and their cytotoxic activities.
- Antonio G. González, J. Hernández, +4 authors J. Bermejo
- Biology, Medicine
- Journal of natural products
- 29 May 2003
From the stem bark of Dracaena draco, three new compounds, namely, draconins A-C (1-3), were isolated, along with 17 known compounds, whose structures were elucidated on the basis of spectroscopic data interpretation. Expand
New lanostanoids from the fungus Ganoderma concinna.
- Antonio G. González, F. León, +6 authors J. Bermejo
- Chemistry, Medicine
- Journal of natural products
- 3 March 2002
Three new compounds were isolated from Ganoderma concinna along with 12 known compounds and induce apoptosis in human promyelocytic leukemia HL-60 cells, as indicated by examining the morphological features of cells and detection of DNA fragmentation by gel electrophoresis. Expand
Carotane sesquiterpenes from Ferula lancerottensis
Abstract Six new carotane sesquiterpenes, the p -hydroxybenzoate of epoxyjaeschkeanadiol the p -methoxybenzoate and p -hydroxybenzoate of lancerodiol, lancerodiol, the p -hydroxybenzoate of… Expand
Three new sesquiterpenoids from the marine alga laurencia perforata.
New Examples of Acyclic and Cyclic C-15 Acetogenins from Laurencia pinnatifida. Reassignment of the Absolute Configuration for E and Z Pinnatifidienyne.
Lanostanoid Triterpenes from Ganoderma lucidum
Two new lanostanoids lucidadiol (1) and lucidal (2), were isolated from an ethanolic extract of Ganoderma lucidum, together with the known compounds ganodermadiol; ganodermenonol; ganoderic acid DM,… Expand
4,5-Dihydroblumenol A, a New Nor-isoprenoid from Perrottetia multiflora
A new carotenoid-like compound, 4,5-dihydroblumenol A and blumenol B were isolated from Perrottetia multiflora, the first report of C-13 type metabolites from this family, and the structure of the new compound was elucidated by spectoscopic studies. Expand
A first study of antibacterial activity of diterpenes isolated from some Salvia species (Lamiaceae)
Abstract Products from three species of Salvia were tested for activity against Gram-positive Bacillus subtilis and Staphylococcus aureus and Gram-negative Escherichia coli and Salmonella sp. on… Expand
Flavonoids from Salvia texana
- Antonio G. González, Zahira E. Aguiar, Javier Gutiérrez Luis, Á. Ravelo, J. T. Vázquez, X. Domínguez
Abstract From a methanolic root extract of Salvia texana, 5-hydroxy-7,4′-dimethoxyflavone and (+)-2(S)-5-hydroxy-7-methoxyflavanone were isolated and characterized by spectroscopy. The absolute… Expand