Design, Synthesis and Biological Activity Evaluation of Novel N-Acylation Substituted Isatin Derivatives

2013 ◽  
Vol 683 ◽  
pp. 34-37
Author(s):  
Bin Zeng ◽  
Xiao Hua Zhu

Isatin, an endogenous compound existent in many organisms, shows a wide range of biological activities. In this paper, we like to report the design and synthesis of several isatin derivatives through the acetalization and N-Acylation. Six newly synthesized compounds were characterized on the basis of 1H NMR, and those compounds were determined using two different human cancer cell . Anti-cancer activity showed those compounds IC50<50 μm.

2020 ◽  
Author(s):  
Ewen Calder ◽  
Anna Skwarska ◽  
Deborah Sneddon ◽  
Lisa Folkes ◽  
Ishna N. Mistry ◽  
...  

The design and synthesis of four hypoxia-activated prodrugs of the KDAC inhibitor panobinostat is described. Initial validation of these compounds using isolated enzymes, and in two human cancer cell lines, reveals that the nitroimidazole-based prodrug (NI-Pano, CH-03) undergoes efficient bioreduction and fragmentation to release the parent drug, panobinostat. NI-Pano was identified as the optimum compound for use in further studies in cells, spheroid tumor models, and <i>in vivo</i>.


2020 ◽  
Author(s):  
Ewen Calder ◽  
Anna Skwarska ◽  
Deborah Sneddon ◽  
Lisa Folkes ◽  
Ishna N. Mistry ◽  
...  

The design and synthesis of four hypoxia-activated prodrugs of the KDAC inhibitor panobinostat is described. Initial validation of these compounds using isolated enzymes, and in two human cancer cell lines, reveals that the nitroimidazole-based prodrug (NI-Pano, CH-03) undergoes efficient bioreduction and fragmentation to release the parent drug, panobinostat. NI-Pano was identified as the optimum compound for use in further studies in cells, spheroid tumor models, and <i>in vivo</i>.


2021 ◽  
Vol 12 (2) ◽  
pp. 2392-2403

A series of novel benzoxazole-isatin conjugates were synthesized by treating 2-amino benzoxazole with 5 and 7 substituted isatin derivatives and were screened for in vitro antimicrobial and cytotoxic activities. The results showed that all the synthesized compounds shown mild to potent antibacterial activity. The MIC values were found between 10 and 100 µg/ml against tested bacterial and fungal organisms. Among all the compounds, 3d & 3c showed good antimicrobial. In vitro cytotoxic activities were evaluated by MTT assay of all the test compounds against the different human cancer cell lines. The compounds having substitution with electron-withdrawing groups (halides) at the 5th position on the isatin ring showed the most significant biological activity than substituted at the 7th position. The molecular docking interactions have shown good binding interactions with the protein targets glucosamine-6-phosphate synthase (GlcN-6-P synthase) and telomerase.


2020 ◽  
Vol 17 (11) ◽  
pp. 1439-1455
Author(s):  
Sen-Chuan Song ◽  
Yu-Liang Mai ◽  
Hua-Hong Shi ◽  
Bing Liao ◽  
Fei Wang

Background: Inhibition of cancer cell growth and low in vivo toxicity are two important criteria for the development of anti-cancer drugs. Curcumin is a promising candidate for developing novel anti-cancer drug analogs. The research group designed the 3,5-bis-(3,4,5- trimethoxybenzylidene)-1-methyl-piperidin-4-one analog of curcumin that significantly inhibited the growth of esophageal cancer cells in vivo. In this study, 81 curcumin analogs were synthesized, analyzed both in vitro and in vivo, and their structure activity relationships (SARs) were determined. Methods: Based on the parent structure of curcumin, 81 analogs of 3,5-bis(substitutedbenzylidene)- piperidin-4-one compounds were designed and synthesized. Their anti-cancer activity in the human cancer cell lines was evaluated using the MTT assay, and in vivo toxicity was evaluated in mice. The SARs of selected compounds were analyzed. Results and Discussion: Among the designed curcumin analogs, 61 compounds exerted anti-cancer effects higher than the parent compound in vitro; 23 compounds inhibited cell growth in the human cancer cell line at low concentrations (IC50 values below 1 μM). The acute toxicity of curcumin analogs was tested in mice; 13 compounds were selected, which did not show any obvious toxicity at doses as high as 25.0 mg/kg. The SARs of these shortlisted curcumin analogs were determined. Conclusion: Twenty-three curcumin analogs exhibiting promising in vitro anti-cancer activity and low in vivo toxicity were designed. SAR analysis indicated the optimal functional groups in the molecule required for anti-cancer activity. This study not only suggested a useful strategy to design curcumin analogs for the development of anti-cancer drugs, but also revealed a group of curcumin analogs which could be further explored.


2014 ◽  
pp. 98-101
Author(s):  
Thi Bich Hien Le ◽  
Viet Duc Ho ◽  
Thi Hoai Nguyen

Nowadays, cancer treatment has been a big challenge to healthcare systems. Most of clinical anti-cancer therapies are toxic and cause adverse effects to human body. Therefore, current trend in science is seeking and screening of natural compounds which possess antineoplastic activities to utilize in treatment. Uvaria L. - Annonaceae includes approximately 175 species spreading over tropical areas of Asia, Australia, Africa and America. Studies on chemical compositions and pharmacological effects of Uvaria showed that several compound classes in this genus such as alkaloid, flavonoid, cyclohexen derivaties, acetogenin, steroid, terpenoid, etc. indicate considerable biological activities, for example anti-tumor, anti-cancer, antibacterial, antifungal, antioxidant, etc. Specifically, anti-cancer activity of fractions of extract and pure isolated compounds stands out for cytotoxicity against many cancer cell lines. This study provides an overview of anti-cancer activity of Uvaria and suggests a potential for further studies on seeking and developing novel anti-cancer compounds. Key words: Anti-cancer, Uvaria.


2019 ◽  
Vol 19 (9) ◽  
pp. 1132-1140
Author(s):  
Heba A.E. Mohamed ◽  
Hossa F. Al-Shareef

Background: Quinolones are a significant group of nitrogen heterocyclic compounds that exist in therapeutic agents, alkaloids, and synthetic small molecules that have important biological activities. A wide range of quinolones have been used as antituberculosis, antibacterial, anti-malarial, antifungal, anticonvulsant, anticancer agents and urease inhibitors. Methods: Ethyl 3,3-disubstituted-2-cyano propionates containing hybride quinolones derivatives were synthesized by the reaction of 1-amino-7-hydroxy-4-methylquinolin-2(1H)-one and its dibromo derivative with α, β-unsaturated carbonyl in ethanol. Results: A novel series of hybrid 2-quinolone derivatives was designed and synthesized. The compounds structures were confirmed using different spectroscopic methods and elemental analysis. The cytotoxic activities of all the compounds were assessed against HepG2 cell line in comparison with doxorubicin as a standard drug. Conclusion: Most compounds revealed superior anti-proliferative activity than the standard. Compound 4b, is the most active compound (IC50 = 0.39mM) compared with doxorubicin (IC50 = 9.23mM). DNA flow cytometric analysis of compound 4b showed cell cycle arrest at G2/M phase with a concomitant increase of cells in apoptotic phase. Dual annexin-V/ propidium iodide staining assay of compound 4b revealed that the selected candidate increased the apoptosis of HepG-2 cells more than control.


Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3888
Author(s):  
Boon-Peng Puah ◽  
Juriyati Jalil ◽  
Ali Attiq ◽  
Yusof Kamisah

Lycopene is a well-known compound found commonly in tomatoes which brings wide range of health benefits against cardiovascular diseases and cancers. From an anti-cancer perspective, lycopene is often associated with reduced risk of prostate cancer and people often look for it as a dietary supplement which may help to prevent cancer. Previous scientific evidence exhibited that the anti-cancer activity of lycopene relies on its ability to suppress oncogene expressions and induce proapoptotic pathways. To further explore the real potential of lycopene in cancer prevention, this review discusses the new insights and perspectives on the anti-cancer activities of lycopene which could help to drive new direction for research. The relationship between inflammation and cancer is being highlighted, whereby lycopene suppresses cancer via resolution of inflammation are also discussed herein. The immune system was found to be a part of the anti-cancer system of lycopene as it modulates immune cells to suppress tumor growth and progression. Lycopene, which is under the family of carotenoids, was found to play special role in suppressing lung cancer.


Biomedicines ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 96 ◽  
Author(s):  
Subramani Paranthaman Balasubramani ◽  
Mohammad Atikur Rahman ◽  
Sheikh Mehboob Basha

Muscadine grape is rich in stilbenes, which include resveratrol, piceid, viniferin, pterostilbene, etc. Resveratrol has been extensively studied for its biological activities; however, the synergistic effect of stilbene compounds in berry extracts is poorly understood. The aim of this study was to evaluate the anti-cancer activity of stilbene-rich muscadine berry extract and pure resveratrol. Stilbenes were extracted from ripened berries of muscadine grape cultivars, Pineapple, and Southern Home. HPLC analysis was performed to determine quantity of stilbenes. The extracts were tested for their cytotoxic activity against A549 (lung carcinoma cells), triple negative breast cancer (HCC-1806) and HepG2 (human liver cancer) cells. The stilbene-rich extracts of the muscadine berry extracts showed cytotoxic activity against all of the cells tested. The extracts at 1 μg/mL induced death in 50–80% of cells by 72 h of treatment. About 50 μg/mL of resveratrol was required to induce a similar response in the cells. Further, modulation of genes involved in tumor progression and suppression was significantly (p < 0.0005) higher with the HepG2 cells treated with stilbene-rich berry extracts than the pure resveratrol. This shows that the synergistic activity of stilbenes present in muscadine grape berries have more potent anti-cancer activity than the resveratrol alone.


2021 ◽  
Vol 25 (11) ◽  
pp. 104-109
Author(s):  
Gullapelli Kumaraswamy ◽  
Ravichandar Maroju ◽  
Srinivas Bandari ◽  
Gouthami Dasari ◽  
Gullapelli Sadanandam

A novel series of 2-(1-((1-substitutedphenyl-1H-1,2,3- triazol-4-yl)methoxy)ethyl)-1-((1-substituted phenyl- 1H-1,2,3-triazol-4-yl)methyl)-1H-benzo[d]imidazole (3a-j)derivatives was synthesized in moderate to high yields. The structures of all the synthesized compounds were characterized by 1HNMR, 13CNMR and Mass spectroscopic methods. The title compounds were screened for their anti-oxidant activity and anti-cancer activity. The cancer activity results reveal that the compounds 3j, 3b and 3f are showing promising activity and remaining compounds exhibited moderate activity against all the tested cancer cell lines. The anti-oxidant activity also shows that the compounds 3c and 3d have shown excellent activity and remaining compounds were also found to exhibit moderate activity against the test organisms employed.


MedChemComm ◽  
2017 ◽  
Vol 8 (5) ◽  
pp. 1000-1006 ◽  
Author(s):  
Ibrahim Bin Sayeed ◽  
V. Lakshma Nayak ◽  
Mohd Adil Shareef ◽  
Neeraj Kumar Chouhan ◽  
Ahmed Kamal

A library of imidazopyridine–propenone conjugates (8a–8u) were synthesized and evaluated for their antitumor activity against four human cancer cell lines.


Sign in / Sign up

Export Citation Format

Share Document