论文信息 - More phloroglucinols from Hypericum brasiliense

More phloroglucinols from Hypericum brasiliense

Three new phloroglucinols (hyperbrasilols B and C, and isohyperbrasilol B) have been isolated from a petrol extract of the leaves and flowers of Hypericum brasiliense. Their structures were established by spectroscopic methods including two-dimensional-NMR heteronuclear correlations. EI and D/Cl-mass spectral, NMR, IR and UV data are reported. All three phloroglucinols were antibacterial against Bacillus subtilis in a TLC bioautographic assay.

[1] P. Godin. A New Spray Reagent for Paper Chromatography of Polyols and Cetoses , 1954, Nature.

[2] K. Hostettmann,et al. Antibacterial phloroglucinols and flavonoids from Hypericum brasiliense. , 1995, Phytochemistry.

[3] B. Testa,et al. An antifungal gamma-pyrone and xanthones with monoamine oxidase inhibitory activity from Hypericum brasiliense. , 1994, Phytochemistry.

[4] W. Parker,et al. The structure determination of antibiotic compounds from Hypericum uliginosum. I. , 1968, Journal of the American Chemical Society.

[5] P. Waterman,et al. Kolanone, a novel polyisoprenylated benzophenone with antimicrobial properties from the fruit of Garcinia kola. , 1982, Planta medica.

[6] A. Clark,et al. New antimicrobial filicinic acid derivatives from Hypericum drummondii. , 1991, Journal of natural products.