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Hussain S, Hussain S, Zafar MN, Hussain I, Khan F, Mughal EU, Tahir MN. Preliminary anticancer evaluation of new Pd(II) complexes bearing NNO donor ligands. Saudi Pharm J 2024; 32:101915. [PMID: 38178853 PMCID: PMC10764271 DOI: 10.1016/j.jsps.2023.101915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 12/09/2023] [Indexed: 01/06/2024] Open
Abstract
In this study we presented a novel series of NNO tridentate ligands generating imino, amido and oxo donor pocket for Pd(II) coordination. All the compounds were meticulously characterized by elemental analysis and advanced spectroscopic techniques, including FTIR, proton and carbon NMR. The synthesized compounds underwent rigorous evaluation for their potential as anti-cancer agents, utilizing the aggressive breast cancer cell lines MDA-MB (ATCC) and MCF-7 as a crucial model for assessing growth inhibition in cancer cells. Remarkably, the MTT assay unveiled the robust anti-cancer activity for all palladium complexes against MDA-MB-231 and MCF-7 cells. Particularly, complex [Pd(L1)(CH3CN)] exhibited exceptional potency with an IC50 value of 25.50 ± 0.30 µM (MDA-MB-231) and 20.76 ± 0.30 µM (MCF-7), compared to respective 27.00 ± 0.80 µM and 24.10 ± 0.80 µM for cisplatin, underscoring its promising therapeutic potential. Furthermore, to elucidate the mechanistic basis for the anti-cancer effects, molecular docking studies on tyrosine kinases, an integral target in cancer research, were carried out. The outcome of these investigations further substantiated the remarkable anticancer properties inherent to these innovative compounds. This research offers a compelling perspective on the development of potent anti-cancer agents rooted in the synergy between ligands and Pd(II) complexes and presenting a promising avenue for future cancer therapy endeavors.
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Affiliation(s)
- Shazia Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Shabeeb Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - M. Naveed Zafar
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Irfan Hussain
- Center of Regenerative Medicine and Stem Cell Research, Aga Khan 74800, University Karachi, Pakistan
| | - Faizullah Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Sultanate of Oman and Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Khyber Pakhtunkhwa, Pakistan
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Design and cytotoxic evaluation via apoptotic and antiproliferative activity for novel 11(4-aminophenylamino)neocryptolepine on hepatocellular and colorectal cancer cells. Apoptosis 2023; 28:653-668. [PMID: 36719468 DOI: 10.1007/s10495-023-01810-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 02/01/2023]
Abstract
The current study evaluated the cytotoxic activity of 11(4-Aminophenylamino)neocryptolepine (APAN), a novel derivative of neocryptolepine, on hepatocellular (HepG2) and colon (HCT-116) carcinoma cell lines as well as, the possible molecular mechanism through which it exerts its cytotoxic activity. The APAN was synthesized and characterized based on their spectral analyses. Scanning for anticancer target of APAN by Swiss software indicated that APAN had highest affinity for protein tyrosine kinase 6 enzyme. Furthermore, Super pred software indicated that APAN can be indicated in hepatic and colorectal cells with 92%. Molecular docking studies indicated that the binding affinity scores of APAN for protein PDB code: 6CZ4 of tyrosine kinase 6 recorded of - 6.6084 and RMSD value of 0.8891°A, while that for protein PDB: 7JL7 of caspase 3 was - 6.1712 and RMSD of 0.8490°A. Treatment of HepG2 and HCT-116 cells with APAN induced cytotoxicity with IC50 of 2.6 and 1.82 μg/mL respectively. In addition, it induced injury and serious morphological changes in cells including, disappearance of microvilli, membrane blebbing, cytoplasmic condensation, and shrunken nucleus with more condensed chromatin. Moreover, APAN significantly increased protein expression of annexin V (apoptotic marker). Furthermore, APAN significantly increased protein expression of caspase 3 and P53. However, it significantly reduced secretion of VEGF protein into the medium and decreased protein expression of PCNA and Ki67 in HepG2 and HCT-116 cells. This study indicated that APAN had cytotoxic activity against HepG2 and HCT-116 cells via increasing the expression of apoptotic proteins and reducing the expression of proliferative proteins.
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Pervaiz M, Sadiq A, Sadiq S, Saeed Z, Imran M, Younas U, Majid Bukhari S, Rashad Mahmood Khan R, Rashid A, Adnan A. Design and synthesis of Schiff base Homobimetallic-Complexes as promising antimicrobial agents. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109206] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis, Nanoformulations, and In Vitro Anticancer Activity of N-Substituted Side Chain Neocryptolepine Scaffolds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27031024. [PMID: 35164289 PMCID: PMC8839462 DOI: 10.3390/molecules27031024] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/20/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022]
Abstract
The naturally occurring neocryptolepine (5-Methylindolo [2,3-b]quinoline) and its analogs exhibited prominent anticancer and antimalarial activity. However, the main problem of this class of compounds is their poor aqueous solubility, hampering their bioavailability and preventing their clinical development. To overcome the problem of insolubility and to improve the physicochemical and the pharmacological properties of 5-Methylindolo [2,3-b]quinoline compounds, this work was designed to encapsulate such efficient medical compounds into mesoporous silica oxide nanoemulsion (SiO2NPs). Thus, in this study, SiO2NPs was loaded with three different concentrations (0.2 g, 0.3, and 0.6 g) of 7b (denoted as NPA). The findings illustrated that the nanoparticles were formed with a spherical shape and exhibited small size (less than 500 nm) using a high concentration of the synthesized chemical compound (NPA, 0.6 g) and good stabilization against agglomeration (more than -30 mv). In addition, NPA-loaded SiO2NPs had no phase separation as observed by our naked eyes even after 30 days. The findings also revealed that the fabricated SiO2NPs could sustain the release of NPA at two different pH levels, 4.5 and 7.4. Additionally, the cell viability of the produced nanoemulsion system loaded with different concentrations of NPA was greater than SiO2NPs without loading, affirming that NPA had a positive impact on increasing the safety and cell viability of the whole nanoemulsion. Based on these obtained promising data, it can be considered that the prepared NPA-loaded SiO2NPs seem to have the potential for use as an effective anticancer drug nanosystem.
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Pervaiz M, Sadiq S, Sadiq A, Younas U, Ashraf A, Saeed Z, Zuber M, Adnan A. Azo-Schiff base derivatives of transition metal complexes as antimicrobial agents. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214128] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abouzayed FI, Abouel-Enein SA, Hammad AM. Synthesis of Some Novel Nanosized Chelates of Anchoring Bisazo Dye 5-[5-(4,6-Dioxo-2-thioxo-hexahydro-pyrimidin-5-ylazo)-naphthalen-1-ylazo]-2-mercapto-1 H-pyrimidine-4,6-dione and Their Applications as Antioxidant and Antitumor Agents. ACS OMEGA 2021; 6:27737-27754. [PMID: 34722974 PMCID: PMC8552356 DOI: 10.1021/acsomega.1c02989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 06/13/2023]
Abstract
A novel bisazo 5-[5-(4,6-dioxo-2-thioxo-hexahydro-pyrimidin-5-ylazo)-naphthalen-1-ylazo]-2-mercapto-1H-pyrimidine-4,6-dione (H4L) ligand has been synthesized from diazotization coupling between naphthalene-1,5-diamine and 2-thiobarbituric acid. Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Fe(III) chelates were prepared. All prepared compounds were characterized by different techniques. The azo groups did not participate in chelation according to the infrared spectra, whereas the thioamide group did participate. The azo dye ligand coordinated with all metallic ions in a neutral-keto-thiol structure and behaved as a bi- and tridentate moiety. Zinc, manganese, and iron chelates had an octahedral structure, while nickel and cobalt chelates had a tetrahedral structure, but the copper chelate had a square pyramidal geometry. The thermal behavior of all prepared compounds was investigated and thermokinetic parameters were also discussed. X-ray diffraction (XRD) data reflected that Fe(III) and Zn(II) complexes were crystalline while the Cu(II) complex was amorphous. Calcination of the Fe(III) complex at 600 °C yielded a nanosized Fe2O3 crystalline phase, elucidated by XRD and transmission electron microscope. The novel azo dye and some of its chelates were tested against HepG-2. The Fe2O3 nanooxide showed remarkable activity against the HepG-2 cell line rather than its precursor Fe(III) complex. Co(II) had a higher antioxidant activity than the other investigated complexes. In both activities, the Cu(II) complex did not show any activity. Molecular modeling and some theoretical studies were validated, and the experimental results were interpreted.
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Affiliation(s)
- Fatma I. Abouzayed
- Chemistry
Department, Faculty of Science, Menoufia
University, Shebin
El-Kom 048, Egypt
| | | | - Amira M. Hammad
- Basic
Science Department, Higher Institute of
Engineering and Technology, Tanta 040, Egypt
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A Review on the Advancements in the Field of Metal Complexes with Schiff Bases as Antiproliferative Agents. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11136027] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Metal complexes play an essential role in pharmaceutical sciences for their multiple and important activities. Schiff bases are versatile pharmacophores able to form chelating complexes with several metals in different oxidation states. Complexes with Schiff bases are widely described in the literature for their multiple actions and numerous advantages, such as low cost and easy synthesis. They show multiple biological activities, including antimicrobial, antioxidant, antimalarial, antinflammatory and antitumor. Schiff bases may also form complexes with lanthanides and actinides acting as catalysts (e.g., in various synthetic processes) and antitumor agents. This review intends to extend on our previous paper regarding Schiff bases as antitumorals, highlighting the importance, in the field of the anticancer agents, of these tools as ligands of metal complexes.
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Matela G. Schiff Bases and Complexes: A Review on Anti-Cancer Activity. Anticancer Agents Med Chem 2021; 20:1908-1917. [PMID: 32379596 DOI: 10.2174/1871520620666200507091207] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 03/05/2020] [Accepted: 03/09/2020] [Indexed: 11/22/2022]
Abstract
Development in the field of bio-inorganic chemistry increased the interest in Schiff base and its complexes due to its biological importance in many fields, including anticancer activity. Discovery of the antitumor activity of Schiff base and its complexes against various tumor cell lines fascinates the researchers to develop new anticancer drugs without any side effects. Thus, the present review focuses on the anticancer activity of Schiff bases and their metal complexes.
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Affiliation(s)
- Garima Matela
- Department of Chemistry, Kumaun University, GDC Jainti-263626 Almora, Uttarakhand, India
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Altwaijry N, El-Ghlban S, El Sayed IET, El-Bahnsawye M, Bayomi AI, Samaka RM, Shaban E, Elmongy EI, El-Masry TA, Ahmed HMA, Attallah NGM. In Vitro and In Vivo Antitumor Activity of Indolo[2,3- b] Quinolines, Natural Product Analogs from Neocryptolepine Alkaloid. Molecules 2021; 26:754. [PMID: 33535575 PMCID: PMC7867085 DOI: 10.3390/molecules26030754] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 11/27/2022] Open
Abstract
Neocryptolepine (5-methyl-5H-indolo[2,3-b] quinoline) analogs were synthesized and evaluated in vitro and in vivo for their effect versus Ehrlich ascites carcinoma (EAC). The analogs showed stronger cytotoxic activity against EAC cells than the reference drug. The in vivo evaluation of the target compounds against EAC-induced solid tumor in the female albino Swiss mice revealed a remarkable decrease in the tumor volume (TV) and hepatic lipid peroxidation. A noticeable increase of both superoxide dismutase (SOD) and catalase (CAT) levels was reported (p < 0.001), which set-forth proof of their antioxidant effect. In addition, the in vitro antioxidant activity of the neocryptolepine analogs was screened out using the DPPH method and showed promising activities activity. The histopathological investigations affirmed that the tested analogs have a remarkable curative effect on solid tumors with minimal side-effect on the liver. The study also includes illustrated mechanism of the antitumor activity at the cell level by flow cytometry. The cell cycle analysis showed that the neocryptolepine analogs extensively increase the aggregation of tumor cells in three phases of the cell cycle (G0/G1, S and G2/M) with the emergence of a hypo-diploid DNA content peak (sub-G1) in the cell cycle experiments, which is a clear-cut for the apoptotic cell population. Furthermore, the immunological study manifested a significant elevation in splenic lymphocyte count (p < 0.001) with the elevation of the responsiveness of lymphocytes to phytohemagglutinin (PHA). These results indicate that these naturally-based neocryptolepine alkaloids exhibit marked antitumor activity in vivo and represent an important lead in the development of natural-based anticancer drugs.
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Affiliation(s)
- Najla Altwaijry
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh P.O. Box 84428, Saudi Arabia; (N.A.); (E.I.E.); (T.A.E.-M.); (N.G.M.A.)
| | - Samah El-Ghlban
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El Koom P.O. Box 32511, Egypt; (S.E.-G.); (M.E.-B.)
| | - Ibrahim E.-T. El Sayed
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El Koom P.O. Box 32511, Egypt; (S.E.-G.); (M.E.-B.)
| | - Mohamed El-Bahnsawye
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El Koom P.O. Box 32511, Egypt; (S.E.-G.); (M.E.-B.)
| | - Asmaa I. Bayomi
- Department of Zoology, Faculty of Science, Menoufia University, Shebin El Koom P.O. Box 32511, Egypt;
| | - Rehab M. Samaka
- Department of Pathology, Faculty of Medicine, Menoufia University, Shebin El Koom P.O. Box 32511, Egypt;
| | - Elkhabiry Shaban
- Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, 33 El Bohouth St., Dokki, Giza P.O. Box 12622, Egypt;
| | - Elshaymaa I. Elmongy
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh P.O. Box 84428, Saudi Arabia; (N.A.); (E.I.E.); (T.A.E.-M.); (N.G.M.A.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, Ain Helwan, Cairo P.O. Box 11795, Egypt
| | - Thanaa A. El-Masry
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh P.O. Box 84428, Saudi Arabia; (N.A.); (E.I.E.); (T.A.E.-M.); (N.G.M.A.)
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta P.O. Box 31527, Egypt
| | - Hytham M. A. Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shebin El Koom P.O. Box 32511, Menoufia, Egypt;
| | - Nashwah G. M. Attallah
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh P.O. Box 84428, Saudi Arabia; (N.A.); (E.I.E.); (T.A.E.-M.); (N.G.M.A.)
- National Organization of Drug Control and Research (NODCAR), Giza P.O. Box 29 Pyramids, Egypt
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Affiliation(s)
| | | | - S. M. Rahatul Alam
- Department of Chemistry, University of Chittagong, Chittagong, Bangladesh
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AbouEl-Enein SA, Emam SM, Wagdy RM, Abouzayed FI. Spectral and thermal investigation of novel biologically active (N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl-amino)-2-oxo-cetimidic acid) ligand and its metal complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Abouzayed FI, Emam SM, Abouel-Enein SA. Synthesis, characterization and biological activity of nano-sized Co(II), Ni(II), Cu(II), Pd(II) and Ru(III) complexes of tetradentate hydrazone ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128314] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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13
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Yakan H. Novel Schiff bases derived from isothiocyanates: synthesis, characterization, and antioxidant activity. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04185-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Novel palladium(II) complexes of N-(5-nitro-salicylidene)-Schiff bases: Synthesis, spectroscopic characterization and cytotoxicity investigation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127852] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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15
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Emam SM, Tolan DA, El‐Nahas AM. Synthesis, structural, spectroscopic, and thermal studies of some transition‐metal complexes of a ligand containing the amino mercapto triazole moiety. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5591] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sanaa M. Emam
- Chemistry Department, Faculty of ScienceMenoufia University Shebin el Kom, 32512 Egypt
| | - Dina A. Tolan
- Chemistry Department, Faculty of ScienceMenoufia University Shebin el Kom, 32512 Egypt
- Department of Chemistry, College of Science and Humanities in Al‐KharjPrince Sattam bin Abdulaziz University Al‐Kharj 11942 Saudi Arabia
| | - Ahmed M. El‐Nahas
- Chemistry Department, Faculty of ScienceMenoufia University Shebin el Kom, 32512 Egypt
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16
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Synthesis and antiproliferative activity of new hybrids bearing neocryptolepine, acridine and α-aminophosphonate scaffolds. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-019-01849-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Structural Modifications of Nature-Inspired Indoloquinolines: A Mini Review of Their Potential Antiproliferative Activity. Molecules 2019; 24:molecules24112121. [PMID: 31195640 PMCID: PMC6600460 DOI: 10.3390/molecules24112121] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/27/2019] [Accepted: 06/01/2019] [Indexed: 02/04/2023] Open
Abstract
Cryptolepine, neocryptolepine and isocryptolepine are naturally occurring indoloquinoline alkaloids with various spectrum of biological properties. Structural modification is an extremely effective means to improve their bioactivities. This review enumerates several neocryptolepine and isocryptolepine analogues with potent antiproliferative activity against MV4-11 (leukemia), A549 (lung cancer), HCT116 (colon cancer) cell lines in vitro. Its activity towards normal mouse fibroblasts BALB/3T3 was also evaluated. Furthermore, structure activity relationships (SAR) are briefly discussed. The anticancer screening of neocryptolepine derivatives was performed in order to determine their cytotoxic and growth inhibitory activities across the JFCR39 cancer cell line panel.
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Paşa S, Erdoğan Ö, Yenisey Ç. Synthesis and structural identification of boron based Schiff compounds with Ishikawa endometrial cancer and antioxidant activity. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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19
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Chemoselective aerobic oxidation of 2-amino-N-benzylanilines into N-(2-aminophenyl)imines via a nitroxide-free copper catalysis. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Emam SM, Abouel‐Enein SA, Abdel‐Satar EM. Structural characterization, thermal investigation and biological activity of metal complexes containing Schiff Base ligand (Z)‐3‐(1‐((4,6‐dimethyl‐1H‐pyrazolo[3,4‐b] pyridin‐3‐yl)imino)ethyl)‐4‐hydroxy‐6‐methyl‐2H‐pyran‐2‐one. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4847] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sanaa M. Emam
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
| | | | - Eman M. Abdel‐Satar
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
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21
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Zaltariov MF, Avadanei M, Balan M, Peptanariu D, Vornicu N, Shova S. Synthesis, structural characterization and biological studies of new Schiff bases containing trimethylsilyl groups. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Zong Z, Wei X, Yan X, Fan Y. Crystal structures and anticancer activities of five novel pyrazolone-enamine transition metal complexes with 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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23
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Akkuş Taş N, Şenocak A, Aydın A. Preparation and Anticancer Activities of Some Amino Acid Methyl Ester Schiff Bases. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2018. [DOI: 10.18596/jotcsa.373904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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24
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El-Samanody ESA, AbouEl-Enein SA, Emara EM. Molecular modeling, spectral investigation and thermal studies of the new asymmetric Schiff base ligand; (E)-N'-(1-(4-((E)-2-hydroxybenzylideneamino)phenyl)ethylidene)morpholine-4-carbothiohydrazide and its metal complexes: Evaluation of their antibacteri. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4262] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Esam M. Emara
- Plants Protection Researches Institute; Agricultural Researches Center; Giza Egypt
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