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Swift EC, Sales ZS, Wu D, Matviitsuk A, Pippel DJ, Lebold TP. Synthesis of Highly Functionalized 4-Iodo-7-azaindazoles via Condensation/Diels-Alder/Retro-Diels-Alder Cyclization of Iodoalkynones and 2-Hydrazineylpyrimidines. Org Lett 2023. [PMID: 37991557 DOI: 10.1021/acs.orglett.3c03481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
A method for the preparation of highly functionalized 4-iodo-7-azaindazoles is reported. These valuable heterocycles are synthesized via condensation of 2-hydrazineylpyrimidines with various iodoalkynones followed by Diels-Alder/retro-Diels-Alder cyclization. The method is general to the formation of products with a variety of C3, C5, and C6 substituents while preserving the C4 iodide functional handle for further late-stage functionalization. The utility of this transformation is demonstrated through the rapid synthesis of several bioactive azaindazole targets.
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Affiliation(s)
- Elizabeth C Swift
- Discovery Process Research, Janssen R&D, San Diego, California 92121, United States
| | - Zachary S Sales
- Discovery Process Research, Janssen R&D, San Diego, California 92121, United States
| | - Dongpei Wu
- Discovery Chemistry, Janssen R&D, San Diego, California 92121, United States
| | | | - Daniel J Pippel
- Discovery Process Research, Janssen R&D, San Diego, California 92121, United States
| | - Terry P Lebold
- Discovery Chemistry, Janssen R&D, San Diego, California 92121, United States
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Elmorsy MR, Abdel-Latif E, Gaffer HE, Mahmoud SE, Fadda AA. Anticancer evaluation and molecular docking of new pyridopyrazolo-triazine and pyridopyrazolo-triazole derivatives. Sci Rep 2023; 13:2782. [PMID: 36797448 PMCID: PMC9935538 DOI: 10.1038/s41598-023-29908-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
3-Amino-4,6-dimethylpyrazolopyridine was applied as a precursor for the synthesis of some new pyridopyrazolo-triazine and pyridopyrazolo-triazole derivatives through diazotization, followed by coupling with many 2-cyanoacetamide compounds, ethyl 3-(phenylamino)-3-thioxopropanoate, 3-oxo-N-phenylbutanethioamide, and α-bromo-ketone reagents [namely; 2-bromo-1-(4-fluorophenyl)ethan-1-one, 5-bromo-2-(bromoacetyl)thiophene, 3-(2-bromoacetyl)-2H-chromen-2-one and/or 3-chloroacetylacetone]. The prepared compounds were identified by spectroscopic analyses as IR, 1H NMR, and mass data. The anticancer activity of these pyrazolopyridine analogues was investigated in colon, hepatocellular, breast, and cervix carcinoma cell lines. The pyridopyrazolo-triazine compound 5a substituted with a carboxylate group gave a distinguished value of IC50 = 3.89 µM against the MCF-7 cell line compared to doxorubicin as a reference drug. Also, the pyridopyrazolo-triazine compound 6a substituted with the carbothioamide function gave good activity toward HCT-116 and MCF-7 cell lines with IC50 values of 12.58 and 11.71 µM, respectively. The discovered pyrazolopyridine derivatives were studied theoretically by molecular docking, and this study exhibited suitable binding between the active sides of pyrazolopyridine ligands and proteins (PDB ID: 5IVE). The pyridopyrazolo-triazine compound 6a showed the highest free binding energy (- 7.8182 kcal/mol) when docked inside the active site of selected proteins.
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Affiliation(s)
- Mohamed R. Elmorsy
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Ehab Abdel-Latif
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Hatem E. Gaffer
- grid.419725.c0000 0001 2151 8157Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, 12622 Egypt
| | - Samar E. Mahmoud
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Ahmed A. Fadda
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
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Atukuri D. Pyrazolopyridine: An efficient pharmacophore in recent drug design and development. Chem Biol Drug Des 2022; 100:376-388. [PMID: 35661410 DOI: 10.1111/cbdd.14098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 11/29/2022]
Abstract
Among the various heterocyclic molecules employed for drug design and discovery, pyrazolopyridine is one of the promising pharmacophores. Pyrazolopyridine is a result of fusion of pyrazole and pyridine rings. The potent pharmacology of pyrazolopyridine may be the synergistic effect of pyrazole and pyridine moieties in a single framework. It has been used in drug design of a wide range of diseases such as anticancer, antimicrobial, anti-inflammatory, and neuroprotection. Cancer has become a common disease among elderly people now a days that might be because of genetic inheritance to some extent, carcinogens, pollution, and some infectious diseases. Whatever may be the reason, cancer is one of the major causes of deaths worldwide. In addition, over-usage and improper usage of antibiotics have led to drug resistance of microbes. Further, inflammation is a cause of various diseases such as arthritis, and other diseases. Thus, proinflammatory kinases are considered as primary target for inhibition of inflammation. In view of this, a work that compiles potent pharmacology of recently reported pyrazolopyridine analogs has been planned. The review is aimed to discuss pharmacology in brief along with structure-activity relationship (SAR). The review would emphasize importance of pyrazolopyridines in future drug design and discovery and may help in design of potent pharmacological agents.
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Keshk RM. Design, synthesis and characterization of novel pyrazolopyridine and pyridopyrazolopyrimidine derivatives. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Reda M. Keshk
- Department, Faculty of Science Damanhour University Damanhour Egypt
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El-Bana GG, Zoorob HH, Ibrahim ME, Hamama WS. Advances in 4,6‐dimethyl-3-amino-3 H-pyrazolo[3,4-b] pyridine-based and their annulated systems. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1786126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ghada G. El-Bana
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Hanafi H. Zoorob
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mona E. Ibrahim
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Wafaa S. Hamama
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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Vlasiou MC, Pafiti KS. Chromium Coordination Compounds with Antimicrobial Activity: Synthetic Routes, Structural Characteristics, and Antibacterial Activity. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2020. [DOI: 10.2174/1874104502014010001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A major threat to public health worldwide is that the antimicrobial activity of the established drugs is constantly reduced due to the resistance that bacteria develop throughout the years. Some transition metal complexes show higher antibacterial activity against several bacteria compared to those of clinically used antibiotics. Novel classes of molecules provide new challenges and seem promising to solve the crisis that the overuse of antibiotics has led over the last years. This review discusses the challenges of chromium-based metallodrugs as antimicrobial agents. In particular, the synthetic routes, the structural characteristics, as well as the antimicrobial activity of 32 chromium (III) complexes have been presented.
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Masoud MS, AbouEl-Enein SA, Ali AE, Abd Elhamed EH. Chelating behavior of 3-amino-4,6-dimethyl-1H-pyrazolo[3,4-b]pyridine ligand towards some metal ions, spectral and thermal measurements as well as molecular modeling and biological studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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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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P R KR, Fernandez A, Laila SP, B A, C S S, V S V. Synthesis, spectral characterization, crystal structure, cytotoxicity and apoptosis-Inducing activity of two derivatives of 2-hydroxy-1,4-naphthaquinone. Photodiagnosis Photodyn Ther 2017; 17:250-259. [PMID: 28122250 DOI: 10.1016/j.pdpdt.2017.01.180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/03/2016] [Accepted: 01/19/2017] [Indexed: 02/01/2023]
Abstract
A phenaxazone compound [5H-Benzo[a]phenoxazin-5-one (BP)] along with an aminoquinone[2-[(o-hydroxyphenyl)amino]-1,4-naphthaquinone (HAN)] derivatives were synthesized from lawsone using ultrasound irradiation technique. The structure of the compounds were characterized by elemental analysis and various spectral studies. Optoelectronic properties were studied using Schrodinger material science suit (2015). The compounds exhibit fluorescence emission in longer wave length it may find applications in photodynamic therapy. Single crystal X-ray diffraction studies reveals that the compound BP crystallizes in monoclinic space group. The antioxidant activity of HAN and BP were determined using DPPH radical scavenging assay and the results indicate that both the compounds have good antioxidant capacity, HAN having more scavenging activity than BP. Lead molecules were identified using in silico molecular docking studies as a green chemistry approach. iGEMDOCK, GOLD and Schrödinger softwares were used for these studies. The docking studies reveal that the structural modification of the parent compound gave more active compounds making them promising lead molecules. The lead molecules were subjected to in vitro studies. The cytotoxicity of BP and HAN was studied using human breast cancer (SKBR3) cell lines. The IC50 value of HAN was found to be 19.8μM while BP was found to have cell viability, less than 10% even at 25μM concentration. The chemotherapeutic agents kill the cancer cells mainly through apoptosis. HAN and BP were subjected to apoptosis studies. BP was found to more active than HAN. Thus it can be suggested that the mechanism of cell death may be through apoptosis.
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Affiliation(s)
- Kavitha Rani P R
- Dept. of Chemistry, SFR College for Women, Sivakasi, 626123, Tamilnadu, India.
| | - Annette Fernandez
- Dept. of Chemistry, College of Engineering, Trivandrum, 695016, Kerala, India
| | - Shiny P Laila
- Dept. of Chemistry, University College, Trivandrum, 695014, Kerala, India
| | - Arunkumar B
- Dept. of Chemistry, College of Engineering, Trivandrum, 695016, Kerala, India
| | - Sreelakshmi C S
- Dept. of Chemistry, Mohandas College of Engineering and Technology, Thiruvananthapuram, 695544, Kerala, India
| | - Vishnu V S
- Dept. of Chemistry, College of Engineering, Trivandrum, 695016, Kerala, India
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Abdel-Monem YK, Abou El-Enein SA, El-Sheikh-Amer MM. Design of new metal complexes of 2-(3-amino-4,6-dimethyl-1H-pyrazolo[3,4-b]pyridin-1-yl)aceto-hydrazide: Synthesis, characterization, modelling and antioxidant activity. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.110] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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