RESUMO
A new highly oxygenated cycloheptane derivative crustane (1), along with fourteen known compounds (2-15) were isolated from Penicillium crustosum JT-8. The structure of compound 1 was determined by extensive spectroscopic data, DP4+ probability analyses and dimolybdenum CD method. Compound 1 exhibited moderate antibacterial activity against Staphylococcus aureus with MIC of 4.0 µg/mL.
Assuntos
Antibacterianos , Penicillium , Estrutura Molecular , Antibacterianos/química , Staphylococcus aureus , Penicillium/química , Testes de Sensibilidade MicrobianaRESUMO
A new dimeric monoterpene indole alkaloid polonidine A (1), along with five known compounds, cyclopenol (2), verrucosidin (3), fructigenine A (4), 3-O-methylviridicatin (5) and aurantiomides C (6), were isolated from Penicillium polonicum TY12. Their structures were established on the basis of extensive spectroscopic analyses. Compound 1 exhibited moderate cytotoxic activities and moderate antibacterial activity against Bacillus subtilis with MIC of 4.0 µg/mL.
Assuntos
Antineoplásicos , Penicillium , Antibacterianos/química , Antibacterianos/farmacologia , Antineoplásicos/química , Fungos , Alcaloides Indólicos/farmacologia , Estrutura Molecular , Penicillium/químicaRESUMO
A new tremulane sesquiterpene, lactedine (1), along with seven known tremulane sesquiterpenes (2-8) and one known triterpene (9) were isolated from the fungus Irpex lacteus. Their structures were established on the basis of extensive spectroscopic data and DP4+ probability analyses.
Assuntos
Polyporales , Sesquiterpenos , Fermentação , FungosRESUMO
Seven previously undescribed sesterterpenes were characterized from Penicillium roqueforti YJ-14 by solid fermentation. Their structures were initially investigated in detail by spectroscopic analyses and HR-ESI-MS and were further confirmed by X-crystallography. In in vitro bioassays, compounds 1, 5 and 7 showed cytotoxic activity against the MCF-7 breast cancer cell line with IC50 values of 7.98⯱â¯0.93, 6.42⯱â¯0.41 and 7.32⯱â¯0.18⯵M, respectively. Compounds 5 and 7 displayed significant cytotoxicity against the A549 lung cancer cell line (IC50 values of 4.83⯱â¯0.22⯵M and 4.58⯱â¯0.85⯵M, respectively). In addition, compound 5 showed an obvious inhibitory effect on nitric oxide production in LPS-activated RAW264.7 macrophages with an IC50 value of 9.53⯱â¯0.16⯵M.
