scholarly journals Synthesis and Biological Evaluation of Oseltamivir Analogues from Shikimic Acid

2014 ◽  
Vol 9 (7) ◽  
pp. 1934578X1400900
Author(s):  
Van Hung Nguyen ◽  
Van Cuong Pham ◽  
Thi Thao Do ◽  
Huong Doan Thi Mai ◽  
Nguyen Thanh Le ◽  
...  

New oseltamivir analogues were designed and synthesized, starting from shikimic acid. Biological evaluation against three human cancer cell lines (KB, MCF7 and Lu-1) showed that many of them exhibited cytotoxic activity. Azides 5 are more active than the corresponding amines 6. Thus, the reduction of the azide group into amine led to the loss of cytotoxicity. The compounds with a cyclohexanemethyloxy group at C-3 were more active than the other investigated compounds belonging to the same series. This cyclohexanemethyloxy group seems to be critical for the cytotoxic activity of this class of compounds. The synthetic oseltamivir analogues 6a-e had no inhibition activity, even at the concentration of 50 μM when they were evaluated for their in vitro influenza A neuraminidase inhibitory activity by an enzymatic assay.

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Rui Chen ◽  
Caiying Yuan ◽  
Yogini Jaiswal ◽  
Lini Huo ◽  
Dianpeng Li ◽  
...  

In the present study, the synthesis of three 1,8-naphthalimide-acridinyl hybrids (2a, 2b, and 5b) using N-amido-1,8-naphthalimides (1 and 4) and acridinyl isothiocyanates is reported. The newly synthesized hybrids were evaluated for their anticancer activity in six human cancer cell lines (HL-60, MT-4, HepG2, HeLa, SK-OV-3, and MCF-7). Their inhibition activity against DNA-topoisomerase I (Topo I) and Electrophorus electricus acetylcholinesterase (AChE) was also studied. The results indicate that 2b displayed good cytotoxicity for MT-4, HepG2, HeLa, and SK-OV-3 with the IC50 values of 14.66 ± 0.31, 27.32 ± 2.67, 17.51 ± 0.34, and 32.26 ± 1.74 μM, respectively. All compounds, especially 2b, exhibited obvious bands corresponding to DNA fragments at 0.5 mM concentration, further confirming the pharmacological mechanism related to the Topo I inhibitory activities. In addition, compound 2a exhibited higher inhibition activity against AChE than 2b and 5b, with IC50 values of 0.32 ± 0.04 mM, and the acridinyl ring may contribute to the activity of 2a.


Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1162
Author(s):  
Lintao Wu ◽  
Yuting Yang ◽  
Zhijun Wang ◽  
Xi Wu ◽  
Feng Su ◽  
...  

A series of benzimidazole-derived chalcones containing aromatic amide substituent were designed and synthesized. All of the chalcone compounds were tested for their in vitro antitumor activity against human cancer cell lines (HCT116, HepG2, A549, and CRL-5908). The antiproliferative activity of compounds 3, 6, 9, 14, 15, 16 against HCT116 cells was significantly better than that that of 5-Fluorouracil (IC50: 94.63 µM). The antitumor activity of these compounds showed obvious differences between the wild type HCT116 and mutant HCT116 (TP53−/−) cells. A preliminary mechanistic study suggested that these compounds act by upregulating the expression of TP53 protein in tumor cells without inhibiting the MDM2-TP53 interaction.


Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1150
Author(s):  
Nana Meng ◽  
Shuyan Zhou ◽  
Min Hu ◽  
Youzhi Xu ◽  
Yong Xia ◽  
...  

A novel series of 4-(4-formamidophenylamino)-N-methylpicolinamide derivatives were synthesized and evaluated against different tumor cell lines. Experiments in vitro showed that these derivatives could inhibit the proliferation of two kinds of human cancer cell lines (HepG2, HCT116) at low micromolar concentrations and the most potent analog 5q possessed broad-spectrum antiproliferative activity. Experiments in vivo demonstrated that 5q could effectively prolong the longevity of colon carcinoma-burdened mice and slow down the progression of cancer cells by suppression of angiogenesis and the induction of apoptosis and necrosis.


2018 ◽  
Vol 13 (12) ◽  
pp. 1934578X1801301
Author(s):  
Pham The Chinh ◽  
Đang Thi Tuyet Anh ◽  
Duong Huong Quynh ◽  
Le Nhat Thuy Giang ◽  
Nguyen Ha Thanh ◽  
...  

Hemiasterlin is a potent antimitotic agent acting through inhibition of microtubule depolymerization. For this reason, the synthesis of new hemiasterlin derivatives has attracted a lot of interest in the organic chemistry community recently. In this paper, the synthesis and evaluation of the cytotoxicity of new simplified and racemic hemiasterlin derivatives were reported. All of the synthesized analogues were evaluated in vitro for cytotoxic activity against four human cell lines (KB, Hep-G2, LU and MCF7). Most of these analogues possess a strong cytotoxic activity on two human cancer cell lines (KB and Hep-G2) and very weak activity on LU and MCF7 cell lines.


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.


2016 ◽  
Vol 78 (10) ◽  
Author(s):  
Putri Nur Hidayah Al-Zikri ◽  
Muhammad Taher ◽  
Deny Susanti ◽  
Solachuddin Jauhari Arief Ichwan

Luvunga scandens belongs to the family of Rutaceae which usually inhabit tropical and moist environment. This plant is known as ‘Mengkurat Jakun’ among locals and used traditionally to treat fever and fatigue via decoction. The aim of this study was to investigate the cytotoxic activity of the leaves and stems extracts of L. scandens extract. Extracts of the leaves and stems were obtained from sequential extraction procedures by various organic solvents. All extracts were subjected to cytotoxic study by 3-(4, 5-dimethylthaizol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. In in vitro cytotoxicity assay, all L. scandens extracts exhibited cytotoxicity against human breast adenocarcinoma (MCF-7) and human lung adenocarcinoma (A549) cell lines. The IC50 values of dichloromethane and methanol extracts from the leaves of L. scandens against MCF-7 cell line were 62.5 µg/mL and 88.0 µg/mL, respectively, whereas IC50 of methanol extract from stem was 81.0 µg/mL. All extracts were less active against A549 cell line where IC50 value were not be determined. The present findings revealed the potential of L. scandens as a cytotoxic agent against MCF-7 cell line. However, further studies should be planned to evaluate role of the plant in cytotoxic activity.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Vu Van Vu ◽  
Trinh Thi Nhung ◽  
Nguyen Thi Thanh ◽  
Luu Van Chinh ◽  
Vu Dinh Tien ◽  
...  

A series of 14 new (-)-gossypol Schiff bases and hydrazones have been synthesized via an in situ procedure in high yields. Structural data showed that all target compounds exist as the enamine tautomer. Bioassays showed that several compounds exhibited cytotoxic effects against three human cancer cell lines. Compound 8a showed the greatest cytotoxic effect against hepatocellular carcinoma (HepG2), lung carcinoma (LU-1), and breast cancer (MCF-7) cell lines with IC50 values of 20.93, 13.58, and 9.40 μM, respectively. However, in an antibacterial test, compounds 8a and 8b inhibited Staphylococcus aureus and Bacillus cereus and compound 8e inhibited only Staphylococcus aureus at the same MIC values of 1024 μg/ml.


Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1598 ◽  
Author(s):  
William Meza-Morales ◽  
M. Mirian Estévez-Carmona ◽  
Yair Alvarez-Ricardo ◽  
Marco A. Obregón-Mendoza ◽  
Julia Cassani ◽  
...  

At the present time, scientists place a great deal of effort worldwide trying to improve the therapeutic potential of metal complexes of curcumin and curcuminoids. Herein, the synthesis of four homoleptic metal complexes with diacetylcurcumin (DAC), using a ligand designed to prevent the interaction of phenolic groups, rendering metal complexes through the β-diketone functionality, is reported. Due to their physiological relevance, we used bivalent magnesium, zinc, copper, and manganese for complexation with DAC. The resulting products were characterized by ultraviolet-visible (UV-Vis), fluorescence spectroscopy, infrared spectroscopy (IR), liquid and solid-state nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), magnetic moment, mass spectrometry (MS), single crystal, and powder X-ray diffraction (SCXRD and PXRD). Crystallization was achieved in dimethylsulfoxide (DMSO) or N,N-dimethylformamide (DMF) as triclinic systems with space group P-1, showing the metal bound to the β-diketone function, while the 1H-NMR confirmed the preference of the enolic form of the ligand. Single crystal data demonstrated a 1:2 metal:ligand ratio. The inhibition of lipid peroxidation was evaluated using the thiobarbituric acid reactive substance assay (TBARS). All four metal complexes (Mg, Zn, Cu, and Mn) exhibited good antioxidant effect (IC50 = 2.03 ± 0.27, 1.58 ± 0.07, 1.58 ± 0.15 and 1.24 ± 0.10 μM respectively) compared with butylated hydroxytoluene (BHT) and α-tocopherol. The cytotoxic activity in human cancer cell lines against colon adenocarcinoma (HCT-15), mammary adenocarcinoma (MCF-7), and lung adenocarcinoma (SKLU-1) was found comparable ((DAC)2Mg), or ca. 2-fold higher ((DAC)2Zn) than cisplatin. The acute toxicity assays indicate class 5 toxicity, according to the Organization for Economic Co-operation and Development (OECD) guidelines at doses of 3 g/kg for all complexes. No mortality or changes in the behavior of animals in any of the treated groups was observed. A therapeutic potential can be envisaged from the relevant cytotoxic activity upon human cancer cell lines in vitro and the undetected in vivo acute toxicity of these compounds.


2020 ◽  
Vol 32 (8) ◽  
pp. 1967-1971
Author(s):  
Vema Venkata Naresh ◽  
Y. Bharathi Kumari ◽  
Mussulla Sridhar ◽  
Addada Ramakrishnam Raju ◽  
A. Srinivasa Rao

A novel target compounds (9a-j) were design and synthesized and characterized by 1H & 13C NMR, ESI-MS spectral analysis. Further, these were tested for their anticancer activity against three human cancer cell lines such as MCF-7, MDA MB-231 (breast), A549 (Lung) and adriamycin was used as positive control. Among ten compounds, two compounds like 9b and 9j were showed a significant anticancer activity compared to control drug.


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