Synthesis and Reactivity of 6,8-Dibromo-2-ethyl-4H-benzo[d][1,3]oxazin-4-one Towards Nucleophiles and Electrophiles and Their Anticancer Activity

2019 ◽  
Vol 19 (4) ◽  
pp. 538-545 ◽  
Author(s):  
Maher A. El-hashash ◽  
Amira T. Ali ◽  
Rasha A. Hussein ◽  
Wael M. El-Sayed

Background: The genetic heterogeneity of tumor cells and the development of therapy-resistant cancer cells in addition to the high cost necessitate the continuous development of novel targeted therapies. Methods: In this regard, 14 novel benzoxazinone derivatives were synthesized and examined for anticancer activity against two human epithelial cancer cell lines; breast MCF-7 and liver HepG2 cells. 6,8-Dibromo-2- ethyl-4H-benzo[d][1,3]oxazin-4-one was subjected to react with nitrogen nucleophiles to afford quinazolinone derivatives and other related moieties (3-12). Benzoxazinone 2 responds to attack with oxygen nucleophile such as ethanol to give ethyl benzoate derivative 13. The reaction of benzoxazinone 2 with carbon electrophile such as benzaldehyde derivatives afforded benzoxazinone derivatives 14a and 14b.The structure of the prepared compounds was confirmed with spectroscopic tools including IR, 1H-NMR, and 13C-NMR. Results: Derivatives 3, 9, 12, 13, and 14b exhibited high antiproliferative activity and were selective against cancer cells showing no toxicity in normal fibroblasts. Derivative 3 with NH-CO group in quinazolinone ring was effective only against breast cells, while derivative 12 with NH-CO group in imidazole moiety was only effective against liver cells probably through arresting cell cycle and enabling repair mechanisms. The other derivatives (9, 13, and 14b) had broader antiproliferative activity against both cell lines. These derivatives enhance the expression of the p53 and caspases 9 and 3 to varying degrees in both cell lines. Derivative 14b caused the highest induction in the investigated genes and was the only derivative to inhibit the EGFR activity. Conclusions: The unique features about derivative 14b could be attributed to its high lipophilicity, high carbon content, or its extended conjugation through planar aromatic system. More investigations are required to identify the lead compound(s) in animal models.

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 3021 ◽  
Author(s):  
Lei Xu ◽  
Shengnan Xiao ◽  
Weihui Yuan ◽  
Jiongmo Cui ◽  
Guangyue Su ◽  
...  

To increase the antitumor activity of ginsenosides and acetylsalicylic acid, acid hydrolysis products of Panaxnotoginseng saponin were used as raw materials to be combined with salicylic acid to obtain ginsenoside salicylic acid derivatives. All derivatives were assessed for anti-cancer activity. A total of 20 target compounds were designed and synthesized. The cytotoxic activity on five cancer cell lines, including human colon cancer (HT-29), gastric cancer (BGC-823), cervical cancer (Hela), human breast cancer (MCF-7), human lung cancer cells (A549), and two normal cancer cell lines (human gastric epithelial cells (GES-1), and human ovarian epithelial cells (IOSE144)) was evaluated following treatment with the compounds. The results showed that all compounds inhibited the growth of cancer cells. Compounds 1a, 3a, 7a, 1b, 2b, 3b and 8b showed strong anticancer activity. For MCF-7 cells, compound 3b showed the strongest inhibitory activity, IC50 = 2.56 ± 0.09 μM. In the cytotoxicity test, all compounds showed low toxicity or no toxicity (IC50 > 100 μM). In addition, a cell cycle distribution assay and wound healing assay demonstrated that compound 3b specifically inhibited MCF-7 proliferation and migration ability. Our results indicate that compound 3b represents a promising compound for further cancer studies.


2018 ◽  
Vol 154 ◽  
pp. 04003
Author(s):  
Jamilah Abbas ◽  
Linar Z Udin ◽  
Muhammad Hanafi

Objective: to evaluated the antiproliferative activity of natural coumarin from Calophyllum incrasaptum M.R Henderson-Wytt Smith against human breast cancer cells MCF-7. Methode : Coumarin from ethyl acetate fraction of C. incrasaptum M.R Henderson-Wyatt Smith was isolated by coloumn chromatographyic and structure elucidated by using spectroscopic methods and isolate compound was evaluated for their antiproliferative activities in the alamar blue assay. Result: Coumarin have antiproliferative activity against MCF-7 cancer cell lines through alamar blue assay for 4 h after treatment. Conclusions: coumarin showed good activity against cancer cell lines with IC50 value of 2.23 μg/mL.


Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 447
Author(s):  
Christos Vassileiou ◽  
Stefania Kalantzi ◽  
Eleanna Vachlioti ◽  
Constantinos M. Athanassopoulos ◽  
Christos Koutsakis ◽  
...  

Polyamine toxins (PATs) are conjugates of polyamines (PAs) with lipophilic carboxylic acids, which have been recently shown to present antiproliferative activity. Ten analogs of the spider PATs Agel 416, HO-416b, and JSTX-3 and the wasp PAT PhTX-433 were synthesized with changes in the lipophilic head group and/or the PA chain, and their antiproliferative activity was evaluated on MCF-7 and MDA-MB-231 breast cancer cells, using Agel 416 and HO-416b as reference compounds. All five analogs of PhTX-433 were of very low activity on both cell lines, whereas the two analogs of JSTX-3 were highly active only on the MCF-7 cell line with IC50 values of 2.63–2.81 μΜ. Of the remaining three Agel 416 or HO-416b analogs, only the one with the spermidine chain was highly active on both cells with IC50 values of 3.15–12.6 μM. The two most potent compounds in this series, Agel 416 and HO-416b, with IC50 values of 0.09–3.98 μΜ for both cell lines, were found to have a very weak cytotoxic effect on the MCF-12A normal breast cells. The present study points out that the structure of both the head group and the PA chain determine the strength of the antiproliferative activity of PATs and their selectivity towards different cells.


Molecules ◽  
2020 ◽  
Vol 25 (11) ◽  
pp. 2708 ◽  
Author(s):  
Hessa H. Al Rasheed ◽  
Azizah M. Malebari ◽  
Kholood A. Dahlous ◽  
Ayman El-Faham

A new series of s-triazine hydrazone derivatives was prepared based on the reaction of 6-hydrazino-2,4-disubstituted-s-triazine with p-substituted benzaldehyde derivatives using a straightforward synthetic pathway. The antiproliferative activity of all synthesized compounds was evaluated against two human cancer cell lines; breast cancer MCF-7 and colon carcinoma HCT-116 using MTT assay. Among all, 11 compounds have shown strong to moderate antiproliferative activity with IC50 values in the range 1.01–18.20 µM in MCF-7 and 0.97–19.51 µM in HCT-116. The best results were obtained with 4,4’-(6-(2-(pyridin-2-ylmethylene)hydrazinyl)-1,3,5-triazine-2,4-diyl) dimorpholine 11 (IC50 = 1.0 µM and 0.98 µM in MCF-7 and HCT-116 cell lines, respectively). The substituents on the s-triazine core as well as the substituent at the benzylidene moiety have a great effect on the antiproliferative activity. Whereas compounds containing dimorpholino-s-triazine derivatives 8a–e showed more potent antiproliferative in MCF-7 compared to their analogs 7a–f (compounds containing two-piperidine rings), compounds containing one piperidine and one morpholine ring 9a–f showed better IC50 values in the range 10.4–22.2 µM. On the other hand, compounds containing two-piperidine rings 7a–f showed more potent antiproliferative in HCT-116 (IC50 values in the range 8.8–19.5 µM) than their analogs 8a–e and 9a–f.


2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Hong Cui ◽  
Mansour A. E. Bashar ◽  
Islam Rady ◽  
Hussein A. El-Naggar ◽  
Lamiaa M. Abd El-Maoula ◽  
...  

Bioactive constituents of numerous marine organisms have been investigated recently for their preclinical and clinical anticancer activity. Three marine organisms: black-spotted sea cucumber: Pearsonothuria graeffei (Pg), lollyfish: Holothuria atra (Ha), and sea hare: Aplysia dactylomela (Ad), were collected during winter 2019 from Gulf of Aqaba, Red Sea, Egypt, and macerated with ethanol into three different extracts: PgE, HaE, and AdE, where each was in vitro assessed for its antiproliferative and proapoptotic properties on HepG2, HCT-116, and MCF-7 cancer cells. PgE dose-dependently inhibited the growth of HepG2, HCT-116, and MCF-7 cells within IC50 values 16.22, 13.34, and 18.09 μg/mL, respectively, while the IC50 values for the antiproliferative activity of HaE were 12.48, 10.45, and 10.36 μg/mL, respectively, and the IC50 values of AdE were 6.51, 5.33, and 6.87 μg/mL, respectively. All extracts were found to induce G0/G1 cell cycle arrest for HepG2 cells side by side with their inhibition of CDK2 on all three cell lines while all extracts were also showed to induce apoptosis in HepG2 cell line at pre-G1 phase supplemented by their anticancer activity via proapoptotic protein Bax, caspase-3, and cleavage PARP increase, and antiapoptotic protein Bcl-2 downturn. Moreover, necrosis has been relatively noticed in HepG2 cell line as an additional anticancer activity for each extract. Our data introduced three ethanolic marine extracts as natural chemotherapeutic agents to be further developed for cancer control.


Author(s):  
RADHIKA TUMMA ◽  
HARINADHA BABU VAMARAJU

Objectives: Novel isoxazole incorporated pyrazole carbothiamide 5 (a-r) was designed and synthesized, docked and evaluated for anticancer activity Michigan Cancer Foundation-7 (MCF-7), and breast cancer cell lines. Materials and Methods: Designed compounds were synthesized by the condensation of 1-(5-methyl-3-(4-nitrophenyl) isoxazole-4-yl) -3-(substitutedphenyl) prop-2-en-1-one (4) with thiosemicarbazides and substituted thiosemicarbazides to give the target molecules 5 (a-r). To predict the affinity and activity of the ligand molecule, the docking program Accelrys Discovery Studio 2.1 was employed to generate different bioactive binding poses of designing molecules at the active site of human Dihydrofolate Reductase (DHFR) (PDB ID: 1KMS). All the synthesized compounds were characterized based on the spectral and elemental analysis data. Antiproliferative activity was performed against MCF-7 breast cancer cell lines. Results: All the synthesized compounds showed the characteristic peaks in Fourier-transform infrared,1H C13NMR, and mass spectral analysis. During docking, all the synthesized compounds 5 (a-r) exhibited higher fitness scores with minimum three bonding interaction with the active site human DHFR (PDB ID: 1KMS). In the MTT assay based on MCF-7 breast cancer cell lines, most of the compounds exhibited significant activity. In the antiproliferative assay against MCF-7 cell lines, most of the compounds exhibited potent activity with IC50 values in micromolar concentrations. Compounds 5a, 5b, 5f, 5h, and 5k have exhibited significant anticancer activity. Conclusions: The derivatives were synthesized in quantitative yields. New derivatives possess the antiproliferative activity and antitubercular activity.


2021 ◽  
Vol 14 (4) ◽  
pp. 1955-1964
Author(s):  
Tarso Rudiana ◽  
Nani Suryani ◽  
Dimas D. Indriatmoko ◽  
Yusransyah Yusransyah ◽  
Muhammad A. Hardiyanto ◽  
...  

Gandaria (Bouea macrophylla Griff) is a typical Asian plant that is commonly found in In-donesia with various secondary metabolite compounds such as phenolic, flavonoid and ter-penoid. The purpose of this study was to isolate secondary metabolites from the stem extract of B. macrophylla and determine their activity against cancer cells MCF-7, A549, MDA-MB 231 and HCC-1954. The isolation of the compounds was conducted using various chromatographic techniques, the determination of the chemical structure of the isolates was performed using physicochemical methods including mass spectrometer and nuclear magnetic resonance, the determination of anticancer activity was carried out using 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) i.e. MCF-7 and A549 cell lines; and dimetiltiazol-2-il) -2,5-diphenyltetrazolium bromide (MTT) for MDA-MB 231 and HCC-1954 cell lines. Four compounds namely stigmasterol (1), fustin (2), garbanzol (3) and methyl galat (4) were successfully isolated from the stem extract of B. macrophylla, which was obtained from Serang Regency, Indonesia. These compounds were then tested their anticancer activity against the cancer cells of Michigan Cancer Foundation-7 (MCF-7), human alveolar epithelial cells (A549), human breast cancer cell line-1954 (HCC-1954) and M.D. Anderson-Metastatic Breast-231 (MDA-MB-231). The results of anticancer test indicated that based on the IC50 values for all compounds tested, the compounds 2 and 4 were more active on HCC-1954 cell with IC50 values of 134.35 ± 44.62 and 153.69 ± 12.54 µg/mL, respectively, while the compound 3 was found to be the most active against MDA-MB-231 cell line with IC50 value of 233.41 ± 91.57 µg/mL


Author(s):  
Monika Stompor ◽  
Marta Świtalska ◽  
Joanna Wietrzyk

Two biotinylated derivatives of the main hop chalcone xanthohumol (1) were prepared by a one-step synthesis via esterification using biotin and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC×HCl) and 4-dimethylaminopyridine (DMAP) as coupling reagents. The products were characterized spectroscopically and their antiproliferative activity toward MCF-7, MCF-10A, HepG2, MDA-MB-231, 4T1 and Balb/3T3 cell lines was investigated using the SRB assay. For all three tested compounds the best activity was noted in the case of human (MCF-7) and mice (4T1) breast cancer cell lines (IC50 values < 9 μM). Both biotinylated derivatives showed slightly higher anticancer activity than xanthohumol (1) towards all types of tested breast cancer cells. Double biotinylated xanthohumol (3) proved to be the most active in inhibiting cell growth, with IC50 values equal to 5.35 ± 1.5 μM for 4T1 and 8.03 ± 0.53 µM for MCF-7 cell lines. Compound 3 was also more active than 1 and 2 against liver cancer cells HepG2 (IC50 = 17.37 ± 5.1 μM), while the IC50 values for 1 and 2 were equal to 21.5 ± 2.7 and 22.1 ± 3.9 µM, respectively. 4‑O‑biotinylxanthohumol (2) was the second most active growth inhibitor, particularly with respect to MCF-7 (IC50 = 6.19 ± 1.7 μM) and 4T1 (IC50 = 6.64 ± 0.4 μM) cell lines. Our preliminary study on biotinylated xanthohumol (1) have shown that this type of functionalization is an effective method for the production of active biomolecules and study on this area should be continued thereby extending their applications.


RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15286-15297 ◽  
Author(s):  
Manjunath G. Sunagar ◽  
Supreet Gaonkar ◽  
Santosh G. Sunagar ◽  
Narahari Deshapande ◽  
Ningaraddi S. Belavagi ◽  
...  

A series of N-9 substituted 6-(4-(4-propoxyphenyl)piperazin-1-yl)-9H-purine derivatives (PP05–PP21) were prepared and evaluated for their anticancer activity against a panel of human cancer cell lines.


2020 ◽  
Vol 17 (5) ◽  
pp. 563-573 ◽  
Author(s):  
Chandrakant Dhondiram Pawar ◽  
Dattatraya Navnath Pansare ◽  
Devanand Baburao Shinde

Background: Thiophene ring forms important building block in medicinal chemistry. Literature reveals that thiophene ring in combination with different groups shows different activity. By keeping these things in mind we have designed and synthesized a new series of amide and sulfonamide coupled thiophene. A series of novel substituted 3-sulfamoylbenzo[b]thiophene-4- carboxamide molecules containing sulfonamide and amide group were designed, synthesized and used for anti-proliferative activity study. Methods: The final compounds 16-36 were synthesized by using series of reactions comprising sulfonation, sulfonamide coupling, hydrolysis and peptide coupling. The yields of compounds 16- 36 are in the range of 90-98%. The structures of the synthesized compounds were elucidated and confirmed by 1H NMR, 13C NMR, LCMS and the purity was checked through HPLC analysis. The compounds were further tested for their in vitro anticancer activity against a series of cell lines A549, HeLa, MCF-7 and Du-145. Results: The intermediates 8-13, 15 and final compounds 16-36 were synthesized in good yields. The synthesized compounds were further tested for their anticancer activity and most of compounds showed moderate to good anticancer activity against all four cell lines. Conclusion: We have synthesized 21 compounds and were screened for anticancer activity against MCF-7, HeLa, A-549 and Du-145 cancer cell lines. Most of the compounds were active for tested cell lines with IC50 value in the range of 1.81 to 9.73 μM. The compounds 18, 19, 21, 25, 30, 31 and 33 are most active in cell line data with IC50 value in the range of 1.81 to 2.52 μM.


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