1
|
Eissa IH, Elkaeed EB, Elkady H, Yousef RG, Alsfouk BA, Elzahabi HSA, Ibrahim IM, Metwaly AM, Husein DZ. Design, Molecular Modeling, MD Simulations, Essential Dynamics, ADMET, DFT, Synthesis, Anti-proliferative, and Apoptotic Evaluations of a New Anti-VEGFR-2 Nicotinamide Analogue. Curr Pharm Des 2023; 29:2902-2920. [PMID: 38031271 DOI: 10.2174/0113816128274870231102114858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVES This study aims to design and evaluate (in silico and in vitro) a new nicotinamide derivative as an inhibitor of VEGFR-2, a major mediator of angiogenesis Methods: The following in silico studies were performed; DFT calculations, molecular modelling, MD simulations, MM-GBSA, PLIP, and PCAT studies. The compound's in silico (ADMET) analysis was also conducted. Subsequently, the compound ((E)-N-(4-(1-(2-(4-(4-Chlorobenzamido)benzoyl)hydrazono)ethyl) phenyl)nicotinamide) was successfully synthesized and designated as compound X. In vitro, VEGFR-2 inhibition and cytotoxicity of compound X against HCT-116 and A549 cancer cell lines and normal Vero cell lines were conducted. Apoptosis induction and migration assay of HCT-116 cell lines after treatment with compound X were also evaluated. RESULTS DFT calculations assigned stability and reactivity of compound X. Molecular docking and MD simulations indicated its excellent binding against VEGFR-2. Furthermore, MM-GBSA analysis, PLIP experiments, and PCAT studies confirmed compound X's correct binding with optimal dynamics and energy. ADMET analysis expressed its general likeness and safety. The in vitro assays demonstrated that compound X effectively inhibited VEGFR-2, with an IC50 value of 0.319 ± 0.013 μM and displayed cytotoxicity against HCT-116 and A549 cancer cell lines, with IC50 values of 57.93 and 78.82 μM, respectively. Importantly, compound X exhibited minimal toxicity towards the non-cancerous Vero cell lines, (IC50 = 164.12 μM). Additionally, compound X significantly induced apoptosis of HCT-116 cell lines and inhibited their potential to migrate and heal. CONCLUSION In summary, the presented study has identified compound X as a promising candidate for the development of a novel apoptotic lead anticancer drug.
Collapse
Affiliation(s)
- Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh 13713, Saudi Arabia
| | - Hazem Elkady
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Reda G Yousef
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Bshra A Alsfouk
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Heba S A Elzahabi
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11884, Egypt
| | - Ibrahim M Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Ahmed M Metwaly
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
- Biopharmaceutical Products Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Alexandria, Egypt
| | - Dalal Z Husein
- Chemistry Department, Faculty of Science, New Valley University, El-Kharja 72511, Egypt
| |
Collapse
|
2
|
Elzahabi HSA, Nossier ES, Alasfoury RA, El-Manawaty M, Sayed SM, Elkaeed EB, Metwaly AM, Hagras M, Eissa IH. Design, synthesis, and anti-cancer evaluation of new pyrido[2,3-d]pyrimidin-4(3H)-one derivatives as potential EGFRWT and EGFRT790M inhibitors and apoptosis inducers. J Enzyme Inhib Med Chem 2022; 37:1053-1076. [PMID: 35821615 PMCID: PMC9291687 DOI: 10.1080/14756366.2022.2062752] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A new series of pyrido[2,3-d]pyrimidin-4(3H)-one derivatives having the essential pharmacophoric features of EGFR inhibitors has been designed and synthesised. Cell viability screening was performed for these compounds against A-549, PC-3, HCT-116, and MCF-7 cell lines at a dose of 100 μM. The highest active derivatives (8a, 8 b, 8d, 9a, and 12b) were selected for IC50 screening. Compounds 8a, 8 b, and 9a showed the highest cytotoxic activities and were further investigated for wild EGFRWT and mutant EGFRT790M inhibitory activities. Compound 8a showed the highest inhibitory activities against EGFRWT and EGFRT790M with IC50 values of 0.099 and 0.123 µM, respectively. In addition, it arrested the cell cycle at pre-G1 phase and induced a significant apoptotic effect in PC-3 cells. Furthermore, compound 8a induced a 5.3-fold increase in the level of caspase-3 in PC-3 cells. Finally, docking studies were carried out to examine the binding mode of the synthesised compounds against both EGFRWT and EGFRT790M.
Collapse
Affiliation(s)
- Heba S A Elzahabi
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Eman S Nossier
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Rania A Alasfoury
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - May El-Manawaty
- Pharmacognosy Department, National Research Centre, Dokki, Cairo, Egypt
| | - Sara M Sayed
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia
| | - Ahmed M Metwaly
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt.,Biopharmaceutical Products Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Alexandria, Egypt
| | - Mohamed Hagras
- Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| |
Collapse
|
3
|
Gaber AA, Sobhy M, Turky A, Abdulwahab HG, Al-Karmalawy AA, Elhendawy MA, Radwan MM, Elkaeed EB, Ibrahim IM, Elzahabi HSA, Eissa IH. Discovery of new 1 H-pyrazolo[3,4- d]pyrimidine derivatives as anticancer agents targeting EGFR WT and EGFR T790M. J Enzyme Inhib Med Chem 2022; 37:2283-2303. [PMID: 36000168 PMCID: PMC9466626 DOI: 10.1080/14756366.2022.2112575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
New 1H-pyrazolo[3,4-d]pyrimidine derivatives were designed and synthesised to act as epidermal growth factor receptor inhibitors (EGFRIs). The synthesised derivatives were assessed for their in vitro anti-proliferative activities against A549 and HCT-116 cancer cells. Compounds 8, 10, 12a, and 12b showed potent anti-proliferative activities. Compound 12b was the most promising member with IC50 values of 8.21 and 19.56 µM against A549 and HCT-116, respectively. Compounds 8, 10, 12a, and 12b were evaluated for their kinase inhibitory activities against wild EGFR (EGFRWT). Compound 12b was the most potent member showing an IC50 value of 0.016 µM. In addition, compound 12b showed noticeable activity against mutant EGFR (EGFRT790M) (IC50 = 0.236 µM). Flow cytometric analyses revealed that compound 12b is a good apoptotic inducer and can arrest the cell cycle at S and G2/M phases. Furthermore, it produced an 8.8-fold increase in BAX/Bcl-2 ratio. Molecular docking studies were carried out against EGFRWT and EGFRT790M.
Collapse
Affiliation(s)
- Ahmed A Gaber
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Mohamed Sobhy
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Abdallah Turky
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Hanan Gaber Abdulwahab
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Ahmed A Al-Karmalawy
- Department of Pharmaceutical Medicinal Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
| | - Mostafa A Elhendawy
- Department of Chemistry and Biochemistry, University of Mississippi, MS, USA.,Department of Agriculture Chemistry, Faculty of Agriculture, Damietta University, Damietta, Egypt
| | - Mohamed M Radwan
- National Center for Natural Products Research, University of Mississippi, University, MS, USA.,Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia
| | - Ibrahim M Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Heba S A Elzahabi
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| |
Collapse
|
4
|
Hagras M, El Deeb MA, Elzahabi HSA, Elkaeed EB, Mehany ABM, Eissa IH. Discovery of new quinolines as potent colchicine binding site inhibitors: design, synthesis, docking studies, and anti-proliferative evaluation. J Enzyme Inhib Med Chem 2021; 36:640-658. [PMID: 33588683 PMCID: PMC7889231 DOI: 10.1080/14756366.2021.1883598] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/26/2020] [Accepted: 01/25/2021] [Indexed: 01/03/2023] Open
Abstract
Discovering of new anticancer agents with potential activity against tubulin polymerisation is still a promising approach. Colchicine binding site inhibitors are the most relevant anti-tubulin polymerisation agents. Thus, new quinoline derivatives have been designed and synthesised to possess the same essential pharmacophoric features of colchicine binding site inhibitors. The synthesised compounds were tested in vitro against a panel of three human cancer cell lines (HepG-2, HCT-116, and MCF-7) using colchicine as a positive control. Comparing to colchicine (IC50 = 7.40, 9.32, and 10.41 µM against HepG-2, HCT-116, and MCF-7, respectively), compounds 20, 21, 22, 23, 24, 25, 26, and 28 exhibited superior cytotoxic activities with IC50 values ranging from 1.78 to 9.19 µM. In order to sightsee the proposed mechanism of anti-proliferative activity, the most active members were further evaluated in vitro for their inhibitory activities against tubulin polymerisation. Compounds 21 and 32 exhibited the highest tubulin polymerisation inhibitory effect with IC50 values of 9.11 and 10.5 nM, respectively. Such members showed activities higher than that of colchicine (IC50 = 10.6 nM) and CA-4 (IC50 = 13.2 nM). The impact of the most promising compound 25 on cell cycle distribution was assessed. The results revealed that compound 25 can arrest the cell cycle at G2/M phase. Annexin V and PI double staining assay was carried out to explore the apoptotic effect of the synthesised compounds. Compound 25 induced apoptotic effect on HepG-2 thirteen times more than the control cells. To examine the binding pattern of the target compounds against the tubulin heterodimers active site, molecular docking studies were carried out.
Collapse
Affiliation(s)
- Mohamed Hagras
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Moshira A. El Deeb
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Heba S. A. Elzahabi
- Department of Pharmaceutical Medicinal Chemistry & Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Eslam B. Elkaeed
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Ad Diriyah, Riyadh, Saudi Arabia
| | - Ahmed B. M. Mehany
- Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Ibrahim H. Eissa
- Department of Pharmaceutical Medicinal Chemistry & Drug Design, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| |
Collapse
|
5
|
Ismail MMF, El-Sehrawi H, Elzahabi HSA, Shawer T, Ammar YA. Synthesis and Antitumor Activity of Novel Hybrids of Pyrimidine/Benzimidazole Scaffolds. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1833050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Magda M. F. Ismail
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Hend El-Sehrawi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Heba S. A. Elzahabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Taghreed Shawer
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Yousry A. Ammar
- Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
| |
Collapse
|
6
|
Elzahabi HSA, Nossier ES, Khalifa NM, Alasfoury RA, El-Manawaty MA. Anticancer evaluation and molecular modeling of multi-targeted kinase inhibitors based pyrido[2,3-d]pyrimidine scaffold. J Enzyme Inhib Med Chem 2018; 33:546-557. [PMID: 29482389 PMCID: PMC6009920 DOI: 10.1080/14756366.2018.1437729] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 02/05/2018] [Accepted: 02/05/2018] [Indexed: 12/02/2022] Open
Abstract
An efficient synthesis of substituted pyrido[2,3-d]pyrimidines was carried out and evaluated for in vitro anticancer activity against five cancer cell lines, namely hepatic cancer (HepG-2), prostate cancer (PC-3), colon cancer (HCT-116), breast cancer (MCF-7), and lung cancer (A-549) cell lines. Regarding HepG-2, PC-3, HCT-116 cancer cell lines, 7-(4-chlorophenyl)-2-(3-methyl-5-oxo-2,3-dihydro-1H-pyrazol-1-yl)-5-(p-tolyl)- pyrido[2,3-d]pyrimidin-4(3H)-one (5a) exhibited strong, more potent anticancer (IC50: 0.3, 6.6 and 7 µM) relative to the standard doxorubicin (IC50: 0.6, 6.8 and 12.8 µM), respectively. Kinase inhibitory assessment of 5a showed promising inhibitory activity against three kinases namely PDGFR β, EGFR, and CDK4/cyclin D1 at two concentrations 50 and 100 µM in single measurements. Further, a molecular docking study for compound 5a was performed to verify the binding mode towards the EGFR and CDK4/cyclin D1 kinases.
Collapse
Affiliation(s)
- Heba S. A. Elzahabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Eman S. Nossier
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Nagy M. Khalifa
- Drug Exploration & Development Chair (DEDC), Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Rania A. Alasfoury
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - May A. El-Manawaty
- Department of Pharmacognosy, Pharmaceutical Science Division, National Research Centre, Cairo, Egypt
| |
Collapse
|
7
|
Abdel Hafez NA, Hassaneen HME, Farghaly TA, Riyadh SM, Elzahabi HSA. Synthesis of New Bis-Spiropyrazoles as Antitumor Agents under Ultrasound Irradiation. Mini Rev Med Chem 2018; 18:631-637. [PMID: 28901853 DOI: 10.2174/1389557517666170912170027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/28/2017] [Accepted: 08/22/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE AND BACKGROUND Hydrazonoyl halides were used as precursors for the synthesis of a new series of bis-spiropyrazoles via reaction with 3,5-diarylidene-piperidone derivatives under ultrasound irradiation. The products were secluded in good yield after short reaction periods. CONCLUSION The anticancer activity of bis-spiropyrazoles against HepG2 (hepatic cancer), A549 (lung cancer) and CaCo2 (colon cancer) cell lines was screened. Three tested compounds 4b, 4c and 4f showed promising activity.
Collapse
Affiliation(s)
- Naglaa A Abdel Hafez
- Department of Applied Organic Chemistry, National Research Center, Dokki, Cairo, Egypt
| | | | - Thoraya A Farghaly
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.,Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah Almukkarramah, Saudi Arabia
| | - Sayed M Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.,Department of Chemistry, Faculty of Science, Taibah University, AlmadinahAlmunawrah, 30002, Saudi Arabia
| | - Heba S A Elzahabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls), Al Azhar University, Cairo, 11754, Egypt
| |
Collapse
|
8
|
Ismail NSM, Elzahabi HSA, Sabry P, Baselious FN, AbdelMalak AS, Hanna F. A study of the allosteric inhibition of HCV RNA-dependent RNA polymerase and implementing virtual screening for the selection of promising dual-site inhibitors with low resistance potential. J Recept Signal Transduct Res 2016; 37:341-354. [PMID: 27829320 DOI: 10.1080/10799893.2016.1248293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Structure-based pharmacophores were generated and validated using the bioactive conformations of different co-crystallized enzyme-inhibitor complexes for allosteric palm-1 and thumb-2 inhibitors of NS5B. Two pharmacophore models were obtained, one for palm-1 inhibitors with sensitivity = 0.929 and specificity = 0.983, and the other for thumb-2 inhibitors with sensitivity = 1 and specificity = 0.979. In addition, a quantitative structure activity relationship (QSAR) models were developed based on using the values of different scoring functions as descriptors predicting the activity on both allosteric binding sites (palm-1 and thumb-2). QSAR studies revealed good predictive and statistically significant two descriptor models (r2 = .837, r2adjusted = .792 and r2prediction = .688 for palm-1 model and r2 = .927, r2adjusted = .908 and r2prediction = .779 for thumb-2 model). External validation for the QSAR models assured their prediction power with r2ext = .72 and .89 for palm-1 and thumb-2, respectively. Different docking protocols were examined for their validity to predict the correct binding poses of inhibitors inside their respective binding sites. Virtual screening was carried out on ZINC database using the generated pharmacophores, the selected valid docking algorithms and QSAR models to find compounds that could theoretically bind to both sites simultaneously.
Collapse
Affiliation(s)
- Nasser S M Ismail
- a Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries , Future University , Cairo , Egypt
| | - Heba S A Elzahabi
- b Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Al-Azhar University , Cairo , Egypt
| | - Peter Sabry
- c National Organization for Drug Control and Research , Dokki , Cairo , Egypt
| | - Fady N Baselious
- d Department of Research and Development , Global Napi Pharmaceuticals , 6th October City , Giza , Egypt
| | | | | |
Collapse
|
9
|
Farghaly TA, Hassaneen HME, Elzahabi HSA. Eco-friendly synthesis and 2D-QSAR study of novel pyrazolines as potential anticolon cancer agents. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1175-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Elzahabi HSA. Synthesis, characterization of some benzazoles bearing pyridine moiety: search for novel anticancer agents. Eur J Med Chem 2011; 46:4025-34. [PMID: 21704435 DOI: 10.1016/j.ejmech.2011.05.075] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 05/28/2011] [Accepted: 05/31/2011] [Indexed: 11/16/2022]
Abstract
Thirteen novel benzazole derivatives were synthesized as possible anticancer agents. The first intermediate 1,3-benzothiazol-2-ylacetonitrile (2) was synthesized via cyclodeamination reaction of o-aminothiophenol (1) with malononitrile. Also, the second intermediate 5,6-dimethyl-1H-benzimidazol-2-ylacetonitrile (10) was afforded via cyclocondensation reaction between 4,5-dimethyl-1,2-phenylenediamine (9) and ethylcyanoacetate. Nucleophilic reaction of benzimidazolyl NH of compound (10) with ethylcyanoacetate afforded benzimidazolyl-3-oxopropanenitrile (11). On the other hand, methylenation of CH(2) function of compound (10) with dimethylformamide/dimethylacetal afforded benzimidazolylprop-2-enenitrile 12. The synthesis of benzothiazoylpyridines 5a,b and 8a,b as well as benzimidazolylpyridines, 14a,b and 17a-d was carried out through Michael addition of compounds 2 or 10 with arylidenemalononitriles 3a,b and 4a-d. The combination of pharmacophoric anticancer moieties, pyridine and benzazoles was the base on which target compounds 5a,b, 8a,b, 14a,b and 17a-d were designed. Among the synthesized compounds, four derivatives 10 and 17b-d were selected by National Cancer Institute (NCI), USA to be screened for their anticancer activity at a single high dose (10(-5) M) against a panel of 60 cancer cell lines. Compound 17b 4-[p-chlorophenyl]pyridine and 17d 4-[p- methoxyphenyl] pyridine exhibited a broad and moderate antitumor activity against 41 tumor cell lines belonging to the nine subpanels employed and are selected for further evaluation at five dose level screening.
Collapse
Affiliation(s)
- Heba S A Elzahabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy Girls, Al-Azhar University, Cairo, Egypt.
| |
Collapse
|