@article {879, title = {Secondary Metabolites from Pterocaulon alopecuroides and their Antiproliferative Activities}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {May 2019}, pages = {493-495}, type = {Original Article}, chapter = {493}, abstract = {

Objective: To isolate secondary metabolites from the aerial parts of Pterocaulon alopecuroides, elucidate their structures and evaluate their antiproliferative activities on selected human cancer cell lines. Materials and Methods: The ethanolic extract of P. alopecuroides afforded five compounds, which were characterized using spectroscopic techniques and by comparison with data from the literature. Antiproliferative activities of all isolates were evaluated. Results: The compounds 7-(2,3-dihydroxy-3-methylbutoxy)-6-methoxycoumarin (1), 5,6-methylenedioxy- 7-(2,3-dihydroxy-3-methylbutoxy) coumarin (2), Dihydrokaempferol (3), 5,7,4{\textasciiacute}-trihydroxy- 6-(α,α-dimethylallyl)dihydroflavonol (4) and 5,4{\textasciiacute}-dihydroxy-7-(γ,γ-dimethylallyloxy)dihydroflavonol (5) were isolated. The antiproliferative activity of all compounds was evaluated in a panel of six human solid tumor cell lines showing GI50 values for the most active compounds in the low micromolar range. Conclusion: Compound 2 is reported for first time from P. alopecuroides. Isolated coumarins show no antiproliferative activity, whilst among flavonoids compound 5 showed the best antiproliferative activity.

}, keywords = {4{\textasciiacute}-dihydroxy-7-(γ, 5, Antiproliferative activities, Coumarins, Flavonoids, Pterocaulon alopecuroides, γ-dimethylallyloxy)dihydroflavonol}, doi = {10.5530/pj.2019.11.78}, author = {Qu{\'\i}rico A Castillo and Jos{\'e} M. Padr{\'o}n and Anastacio Emiliano} } @article {51, title = {Flavonoids from Eupatorium illitum and Their Antiproliferative Activities}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {01/2015}, pages = {178-181}, type = {Original Article}, chapter = {178}, abstract = {

Objective: To isolate the chemical constituents of the aerial parts from Eupatorium illitum, elucidate their structures and evaluate their antiproliferative activity on human cancer cell lines. Materials and Methods: The ethanolic extract of Eupatorium illitum afforded five compounds, which were characterized using spectroscopic techniques and by comparison with data from the literature. Antiproliferative activities of selected isolates were evaluated. Results: The flavonoids Kumatakenin (1), Ermanin (2), 7-methoxy-aromadendrin (3) and Naringenin (4), together with 4-hydroxybenzoic acid (5) were isolated. Compounds 1, 2, 4 and 5 were evaluated for their antiproliferative activity on the human cancer cell lines A549 (lung), HBL-100 (breast), HeLa (cervix), SW1573 (lung), and T-47D (breast) presenting a wide range of bioactivities. In general, best results were observed for 5. Conclusion: Compounds 1-5 are reported for first time from Eupatorium illitum. Isolated phytochemicals show moderate to low antiproliferative activities when evaluated on the aforementioned human cancer cell lines.

}, keywords = {4-Hydroxybenzoic acid, 7-Methoxy-aromadendrin, Ermanin, Eupatorium illitum, Kumatakenin, Naringenin.}, doi = {10.5530/pj.2015.3.6}, author = {Qu{\'\i}rico A Castillo and Jorge Triana and Jos{\'e} L Eiroa and Jos{\'e} M Padr{\'o}n and Gabriela B Plata and Ernesto V Abel-Santos and Luis A. B{\'a}ez and Diana C Rodr{\'\i}guez and Marco A Jim{\'e}nez and Mar{\'\i}a F P{\'e}rez-Pujols} } @article {1478, title = {Flavonoids from Eupatorium illitum and Their Antiproliferative Activities}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {09th Mar, 2015}, pages = {178-181}, type = {Original Article}, chapter = {178}, abstract = {

Objective: To isolate the chemical constituents of the aerial parts from Eupatorium illitum, elucidate their structures and evaluate their antiproliferative activity on human cancer cell lines. Materials and Methods: The ethanolic extract of Eupatorium illitum afforded five compounds, which were characterized using spectroscopic techniques and by comparison with data from the literature. Antiproliferative activities of selected isolates were evaluated. Results: The flavonoids Kumatakenin (1), Ermanin (2), 7-methoxy-aromadendrin (3) and Naringenin (4), together with 4-hydroxybenzoic acid (5) were isolated. Compounds 1, 2, 4 and 5 were evaluated for their antiproliferative activity on the human cancer cell lines A549 (lung), HBL-100 (breast), HeLa (cervix), SW1573 (lung), and T-47D (breast) presenting a wide range of bioactivities. In general, best results were observed for 5. Conclusion: Compounds 1-5 are reported for first time from Eupatorium illitum. Isolated phytochemicals show moderate to low antiproliferative activities when evaluated on the aforementioned human cancer cell lines.

Key words: Eupatorium illitum, Ermanin, 4-Hydroxybenzoic acid, Kumatakenin, 7-Methoxy-aromadendrin, Naringenin.

}, keywords = {4-Hydroxybenzoic acid, 7-Methoxy-aromadendrin, Ermanin, Eupatorium illitum, Kumatakenin, Naringenin.}, author = {Qu{\'\i}rico A Castillo and Jorge Triana and Jos{\'e} L Eiroa and Jos{\'e} M Padr{\'o}n and Gabriela B Plata and Ernesto V Abel-Santos and Luis A. B{\'a}ez and Diana C Rodr{\'\i}guez and Marco A Jim{\'e}nez and Mar{\'\i}a F P{\'e}rez-Pujols} }