A New Triterpenoid Alkaloid from Buxus sempervirens

2011 ◽  
Vol 66 (10) ◽  
pp. 1076-1078 ◽  
Author(s):  
Yu-Xin Yan ◽  
Yun Sun ◽  
Jian-Chao Chen ◽  
Jia Su ◽  
Yan Li ◽  
...  

A new triterpenoid alkaloid, 16-deacetoxy-hyrcamine (1), together with six analogs, was isolated from the leaves and stems of Buxus sempervirens. Their structures were elucidated based on spectral methods and by comparison of the spectral data with those reported previously. All isolated compounds were evaluated for their growth inhibitory activity against human cell lines HL-60, SMMC-7721, A-549,MCF-7, and SW480. Compounds 1 - 4 and 6 showed modest cytotoxic activity against A-549, MCF-7, and SW480.

Steroids ◽  
2016 ◽  
Vol 115 ◽  
pp. 90-97 ◽  
Author(s):  
Mahmoud Aghaei ◽  
Zeinab Yazdiniapour ◽  
Mustafa Ghanadian ◽  
Behzad Zolfaghari ◽  
Virginia Lanzotti ◽  
...  

2013 ◽  
Vol 8 (12) ◽  
pp. 1934578X1300801
Author(s):  
Mitsuru Satoh ◽  
Yoshio Satoh ◽  
Yasuhiro Anzai ◽  
Daisuke Ajisawa ◽  
Keiichi Matsuzaki ◽  
...  

Two new humulene-type sesquiterpenes, named hyptishumulene I (1) and II (2), have been isolated, together with eight known compounds, a humulene-type sesquiterpene (3), a monoterpene (4) and six abietane-type diterpenoids (5–10) from the aerial parts of Hyptis incana (Labiatae). The cytotoxic activity of the isolated compounds against mouse leukemia cells (L1210) was examined. The abietane-type diterpenoids (5–10) showed rather potent growth inhibitory activity (IC50<15 μM), while the new humulene-type compounds (1 and 2) exhibited moderate activity (IC50>50 μM).


2015 ◽  
Vol 3 (15) ◽  
pp. 3011-3023 ◽  
Author(s):  
Giuseppe Vitiello ◽  
Alessandra Luchini ◽  
Gerardino D'Errico ◽  
Rita Santamaria ◽  
Antonella Capuozzo ◽  
...  

Cationic nanovectors loaded with Ru-based nucleolipids exert a high growth-inhibitory activity against human cancer cells (MCF-7 (A), WiDr (B), and HeLa (C)).


Pathogens ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 558
Author(s):  
Mary L. McKee ◽  
Limian Zheng ◽  
Elaine C. O’Sullivan ◽  
Roberta A. Kehoe ◽  
Barbara M. Doyle Prestwich ◽  
...  

The pathogen Phytophthora infestans is responsible for worldwide catastrophic crop damage and discovery of new inhibitors of this organism is of paramount agricultural and industrial importance. Current strategies for crop treatment are inadequate with limitations of efficacy and market alternatives. Ellipticines have recently been reported to have fungicidal properties and have been assessed against P. infestans growth with promising results. We hereby report a probe of the ellipticine framework to investigate the alkyl subunit and screen a set ellipticines and derivatives to identify new lead compounds to act against P. infestans. A series of ellipticinium salt derivatives have been identified with exceptional growth inhibitory activity and apparent lack of toxicity towards a human cell-line surpassing the effect of known and marketed fungicides. This report identifies the potential of this natural product derivative as a novel fungicide.


2008 ◽  
Vol 377 (1) ◽  
pp. 242-247 ◽  
Author(s):  
Hong-Nu Yu ◽  
Eun-Mi Noh ◽  
Young-Rae Lee ◽  
Si-Gyun Roh ◽  
Eun-Kyung Song ◽  
...  

2019 ◽  
Vol 11 (13) ◽  
pp. 1583-1603
Author(s):  
Ashraf M Omar ◽  
Heba A Abd El Razik ◽  
Aly A Hazzaa ◽  
Maryam AZ El-Attar ◽  
Maha A El Demellawy ◽  
...  

Aim: Cyclooxygenase-2 (COX-2) inhibition and scavenging-free radicals are important targets in cancer treatment. Materials & methods: Sulfanylpyrimidines and triazolopyrimidines were synthesized and evaluated as anticancer and antioxidant COX-1/2 inhibitors. Results: Compound 7 showed the same growth inhibitory activity as 5-fluorouracil against MCF-7. Compound 6f displayed broad-spectrum anticancer activity against the four tested cancer cell lines. Compounds 5b, 6a, 6c, 6d and 8 were found to be more active antioxidants than trolox. Compounds 6a, 6c, 6f and 8 revealed high COX-2 inhibitory activity and selectivity, which was confirmed by docking studies. Conclusion: Compound 6f could be considered as promising anticancer and antioxidant structural lead with COX-2 inhibition that deserve further derivatization and investigation.


2012 ◽  
Vol 7 (8) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Luis A. Sánchez ◽  
Dionisio Olmedo ◽  
José Luis López-Pérez ◽  
Todd D. Williams ◽  
Mahabir P. Gupta

In the course of our search for antineoplasic agents from Panamanian Flora, two new alkylresorcinols: 1-(2,6-dihydroxyphenyl)octan-1-one (1) and (+)-1-(3-(1-(2,6-dihydroxyphenyl)butyl)-2,6-dihydroxyphenyl)octan-1-one (2), together with three known compounds, (1 R, 2 R)-1-(benzo[ d][1,3]dioxol-5-yl)propane-1,2,3-triol (3), (+)-aptosimon (4) and (-)-sesamin (5), were identified from the leaves of Homalomena wendlandii Schott (Araceae). Their structures were established by 1D and 2D NMR and IR spectroscopic, and MS methods. Compound 2 exhibited IC50 values of 3.3, 5.8 and 4.0 μg/mL against MCF-7, SF-268 and H-460 cancer human cell lines, respectively.


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