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Pagacz-Kostrzewa M, Mucha K, Gul W, Wierzejewska M. FTIR spectroscopic evidence for new isomers of 3-aminopyrazine-2-carboxylic acid formed in argon matrices upon UV irradiations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 263:120158. [PMID: 34274637 DOI: 10.1016/j.saa.2021.120158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/28/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
The UV-induced photochemistry and molecular structure of 3-aminopyrazine-2-carboxylic acid were studied in argon matrices by Fourier-transform infrared spectroscopy and B3LYP/6-311++G(2d,2p) calculations. Out of seventeen possible isomers of this molecule located on the singlet potential energy surface the most stable one, APA1 comprising intramolecular O-H···N and N-H···O hydrogen bonds, was detected experimentally in the matrix after deposition. Two new conformers APA2 and APA3 were generated upon irradiation with λ = 280 nm by trans/cis-COOH isomerization and at λ = 360 nm by COOH group rotamerization, respectively, whereas an amino-imino tautomerization leading to IPA1 and IPA2 structures occurred at λ = 305 nm. The reverse reactions were also observed upon irradiation of the matrices at 265, 230 and 400 nm. Simultaneously with the photoisomerizations, a cleavage of the pyrazine ring along with CO2 elimination was observed leading to the formation of carbodiimide and cyanamide derivatives.
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Affiliation(s)
- M Pagacz-Kostrzewa
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - K Mucha
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - W Gul
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - M Wierzejewska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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Mor S, Khatri M, Punia R, Sindhu S. Recent Progress on Anticancer Agents Incorporating Pyrazole Scaffold. Mini Rev Med Chem 2021; 22:115-163. [PMID: 33823764 DOI: 10.2174/1389557521666210325115218] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/01/2021] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Abstract
The search of new anticancer agents is considered as a dynamic field of medicinal chemistry. In recent years, the synthesis of compounds with anticancer potential has increased and a large number of structurally varied compounds displaying potent anticancer activities have been published. Pyrazole is an important biologically active scaffold that possessed nearly all types of biological activities. The aim of this review is to collate literature work reported by researchers to provide an overview on in vivo and in vitro anticancer activities of pyrazole based derivatives among the diverse biological activities displayed by them and also presents recent efforts made on this heterocyclic moiety regarding anticancer activities. This review has been driven from the increasing number of publications, on this issue, which have been reported in the literature since the ending of the 20th century (from 1995-to date).
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Affiliation(s)
- Satbir Mor
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Mohini Khatri
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Ravinder Punia
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Suchita Sindhu
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
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Abd ul-Malik MA, Zaki RM, Kamal El-Dean AM, Radwan SM. A Concise Review on the Synthesis and Reactions of Pyrazolopyrazine Heterocycles. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3225] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mokhtar A. Abd ul-Malik
- Chemistry Department, Faculty of Science; Assiut University; Assiut 71516 Egypt
- Chemistry Department, Faculty of Applied Science; Taiz University; Taiz Yemen
| | - Remon M. Zaki
- Chemistry Department, Faculty of Science; Assiut University; Assiut 71516 Egypt
| | | | - Shaban M. Radwan
- Chemistry Department, Faculty of Science; Assiut University; Assiut 71516 Egypt
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Zaki RM, El-Dean AMK, Radwan SM, Abd ul-Malik MA. A facile synthesis, reactions, and spectral characterization of some novel thieno[3,2-e
]pyrazolo[3,4-b
]pyrazine compounds. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Remon M. Zaki
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
| | - Adel M. K. El-Dean
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
| | - Shaban M. Radwan
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
| | - Mokhtar A. Abd ul-Malik
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
- Chemistry Department, Faculty of Applied Science; Taiz University; Taiz Yemen
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4-Trichloroacetyl-1,2,3-triazoles: A versatile building block for rapid assessment of carbohydrazides and rufinamide derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Atmaca H, Özkan AN, Zora M. Novel ferrocenyl pyrazoles inhibit breast cancer cell viability via induction of apoptosis and inhibition of PI3K/Akt and ERK1/2 signaling. Chem Biol Interact 2017; 263:28-35. [DOI: 10.1016/j.cbi.2016.12.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/10/2016] [Accepted: 12/14/2016] [Indexed: 11/25/2022]
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Integrin β4 is a controversial target for non-small cell lung cancer-reply. Hum Pathol 2016; 61:223-224. [PMID: 27816722 DOI: 10.1016/j.humpath.2016.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 09/01/2016] [Indexed: 11/20/2022]
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Cao L, Xu J. Integrin β4 is a controversial target for non-small cell lung cancer. Hum Pathol 2016; 61:222-223. [PMID: 27816719 DOI: 10.1016/j.humpath.2016.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/01/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Lu Cao
- Children's Hospital of Nanjing Medical University, Nanjing, 210008 China
| | - Jing Xu
- Children's Hospital of Nanjing Medical University, Nanjing, 210008 China.
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New regioselective synthesis of polyfunctionalized 3-ferrocenyl-1 H -pyrroles under microwave irradiation. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Tan CP, Lu YY, Ji LN, Mao ZW. Metallomics insights into the programmed cell death induced by metal-based anticancer compounds. Metallomics 2014; 6:978-95. [PMID: 24668273 DOI: 10.1039/c3mt00225j] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Since the discovery of cisplatin more than 40 years ago, enormous research efforts have been dedicated to developing metal-based anticancer agents and to elucidating the mechanisms involved in the action of these compounds. Abnormal metabolism and the evasion of apoptosis are important hallmarks of malignant transformation, and the induction of apoptotic cell death has been considered to be a main pathway by which cytotoxic metal complexes combat cancer. However, many cancers have cellular defects involving the apoptotic machinery, which results in an acquired resistance to apoptotic cell death and therefore reduced chemotherapeutic effectiveness. Over the past decade, it has been revealed that a growing number of cell death pathways induced by metal complexes are not dependent on apoptosis. Metal complexes specifically triggering these alternative cell death pathways have been identified and explored as novel cancer treatment options. In this review, we discuss recent examples of metallomics studies on the different types of cell death induced by metal-based anticancer drugs, especially on the three major forms of programmed cell death (PCD) in mammalian cells: apoptosis, autophagy and regulated necrosis, also called necroptosis.
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Affiliation(s)
- Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China.
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Li Y, Ma HL, Han L, Liu WY, Zhao BX, Zhang SL, Miao JY. Novel ferrocenyl derivatives exert anti-cancer effect in human lung cancer cells in vitro via inducing G1-phase arrest and senescence. Acta Pharmacol Sin 2013; 34:960-8. [PMID: 23645009 DOI: 10.1038/aps.2013.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 02/17/2013] [Indexed: 01/04/2023] Open
Abstract
AIM To investigate the effects of 7 novel 1-ferrocenyl-2-(5-phenyl-1H-1,2,4-triazol-3-ylthio) ethanone derivatives on human lung cancer cells in vitro and to determine the mechanisms of action. METHODS A549 human lung cancer cells were examined. Cell viability was analyzed with MTT assay. Cell apoptosis and senescence were examined using Hoechst 33258 and senescence-associated-β-galactosidase (SA-β-gal) staining, respectively. LDH release was measured using a detection kit. Cell cycle was analyzed using a flow cytometer. Intracellular ROS level was measured with the 2',7'-dichlorodihydrofluorescein probe. Phosphorylation of p38 was determined using Western blot. RESULTS Compounds 5b, 5d, and 5e (40 and 80 μmol/L) caused significant decrease of A549 cell viability, while other 4 compounds had no effect on the cells. Compounds 5b, 5d, and 5e (80 μmol/L) induced G1-phase arrest (increased the G1 population by 22.6%, 24.23%, and 26.53%, respectively), and markedly increased SA-β-gal-positive cells. However, the compounds did not cause nuclear DNA fragmentation and chromatin condensation in A549 cells. Nor did they affect the release of LDH from the cells. The compounds significantly elevated the intracellular ROS level, decreased the mitochondrial membrane potential, and increased p38 phosphorylation in the cells. In the presence of the antioxidant and free radical scavenger N-acetyl-L-cysteine (10 mmol/L), above effects of compounds 5b, 5d, and 5e were abolished. CONCLUSION The compounds 5b, 5d, and 5e cause neither apoptosis nor necrosis of A549 cells, but exert anti-cancer effect via inducing G1-phase arrest and senescence through ROS/p38 MAP-kinase pathway.
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Hegazy WH, Al-Faiyz YS. Synthesis, characterization, and antitumor activities of 1,1′-diacetylferrocene dihydrazone containing phenolic group and its complexes with Pd(II) and Pt(II). Med Chem Res 2013. [DOI: 10.1007/s00044-013-0661-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shen SL, Shao JH, Luo JZ, Liu JT, Miao JY, Zhao BX. Novel chiral ferrocenylpyrazolo[1,5-a][1,4]diazepin-4-one derivatives – Synthesis, characterization and inhibition against lung cancer cells. Eur J Med Chem 2013; 63:256-68. [DOI: 10.1016/j.ejmech.2013.02.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 01/19/2013] [Accepted: 02/13/2013] [Indexed: 01/21/2023]
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Autophagy inhibition promotes 5-fluorouraci-induced apoptosis by stimulating ROS formation in human non-small cell lung cancer A549 cells. PLoS One 2013; 8:e56679. [PMID: 23441212 PMCID: PMC3575481 DOI: 10.1371/journal.pone.0056679] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2012] [Accepted: 01/12/2013] [Indexed: 12/21/2022] Open
Abstract
Chemotherapy is an important option for the treatment of various cancers including lung cancer. However, tumor resistance towards cytotoxic chemotherapy has become more common. It has been reported that autophagy is one of the processes contributing to this resistance. In the present study, we found that the anti-cancer drug 5-fluorouraci(5-FU) could induce autophagy in A549 cells. 5-FU treatment could lead to the conversion of LC3 I/II, the up-regulation of Beclin-1, the down-regulation of p62 and the formation of acidic vesicular organelles (AVOs) in A549 cells. Pre-treatment of cancer cells with 3-MA or siAtg7 could enhance 5-FU-induced apoptosis through the activation of caspases, and the caspase inhibitor z-VAD-fmk rescued the cell viability reduction. Furthermore, the inhibition of autophagy also stimulated ROS formation and scavenging of ROS by antioxidant NAC inhibited caspase-3 activity, prevented the release of cyt-c from mitochondria and eventually rescued cancer cells from 5-FU-mediated apoptosis. These results suggest that 5-FU-elicited autophagic response plays a protective role against cell apoptosis and the inhibition of autophagy could sensitize them to 5-FU-induced caspase-dependent apoptosis through the stimulation of ROS formation.
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Synthesis of ester and amide derivatives of 1-phenyl-3-(thiophen-3-yl)-1H-pyrazole-4-carboxylic acid and study of their anticancer activity. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0317-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Corry AJ, Goel A, Kenny PT. The synthesis and structural characterization of N-(ferrocenyl)2 and N-(ferrocenoyl)2 cystine dimethyl ester derivatives: Potential anion sensing agents. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.12.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Rai DK, Mooney Á, Kenny PTM. A tandem mass spectrometric investigation of N-(3-ferrocenyl-2-naphthoyl) dipeptide ethyl esters and N-(6-ferrocenyl-2-naphthoyl) dipeptide ethyl esters. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:2905-2910. [PMID: 21913269 DOI: 10.1002/rcm.5184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
N-(3-Ferrocenyl-2-naphthoyl) dipeptide ethyl esters 1-4 and N-(6-ferrocenyl-2-naphthoyl) dipeptide ethyl esters 5-8 were prepared by coupling either 3-ferrocenylnaphthalene-2-carboxylic acid or 6-ferrocenylnaphthalene-2-carboxylic acid to the dipeptide ethyl esters GlyGly(OEt) (1, 5), AlaGly(OEt) (2, 6), GlyPhe(OEt) (3, 7) and GlyLeu(OEt) (4, 8), using the standard N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride, 1-hydroxybenzotriazole protocol. Electrospray ionization mass spectrometry (ESI-MS) and laser desorption ionization mass spectrometry (LDI-MS) were employed in conjunction with tandem mass spectrometry in the analysis of N-(3-ferrocenyl-2-naphthoyl) dipeptide ethyl esters 1-4 and N-(6-ferrocenyl-2-naphthoyl) dipeptide ethyl esters 5-8. Radical cations, [M](+•) and [M + H](+) species were both observed in the mass spectra. Intense sodium [M + Na](+) and potassium [M + K](+) adducts were also present. An important diagnostic ion at m/z [M-65](+) was observed in both the MS and MS/MS spectra of the N-(3-ferrocenyl-2-naphthoyl) dipeptide derivatives. Sequence-specific ions were generally not observed in the MS/MS spectra of the N-(3-ferrocenyl-2-naphthoyl) series due to formation of the diagnostic [M-65](+) ion. Sequence-specific ions were observed in the MS/MS spectra of the N-(6-ferrocenyl-2-naphthoyl) dipeptide esters with charge retention on the derivatized N-terminal of the dipeptide. Both series of compounds could be successfully analyzed by MALDI without the use of a matrix (LDI).
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Affiliation(s)
- Dilip K Rai
- Department of Food Biosciences, Teagasc Food Research Centre Ashtown, Dublin 15, Ireland
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Lian S, Liu JT, Zheng LW, Liu WY, Zhao BX. Synthesis, Structure Characterization, and X-ray Crystallography of Novel 1-Benzyl-3-phenyl-1H-pyrazole-5-carboxylate Derivatives with a Carbohydrate Moiety. J Carbohydr Chem 2011. [DOI: 10.1080/07328303.2011.583371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Song Lian
- a Institute of Organic Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan, 250100, P.R. China
| | - Jin-Ting Liu
- a Institute of Organic Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan, 250100, P.R. China
| | - Liang-Wen Zheng
- a Institute of Organic Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan, 250100, P.R. China
| | - Wei-Yong Liu
- a Institute of Organic Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan, 250100, P.R. China
| | - Bao-Xiang Zhao
- a Institute of Organic Chemistry, School of Chemistry and Chemical Engineering , Shandong University , Jinan, 250100, P.R. China
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Kok SHL, Lam WS, Chan ASC, Wong WY, Gambari R, Wong RSM, Lee KKH, Tang JCO, Lam KH, Chui CH. Enantioselective preparation of ferrocenyl amino phosphines and their cytotoxic activities. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00005e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li Y, Zhang B, Wang X, Yan H, Chen G, Zhang X. Proteomic analysis of apoptosis induction in human lung cancer cells by recombinant MVL. Amino Acids 2010; 41:923-32. [PMID: 21069400 DOI: 10.1007/s00726-010-0791-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Accepted: 10/15/2010] [Indexed: 02/07/2023]
Abstract
Lung cancer is still difficult to treat by current chemotherapeutic procedures. We recently found that MVL, an anti-HIV lectin from blue-green algae Microcystis viridis, also has antitumor activity. The objective of this study was to investigate apoptosis-inducing activity of recombinant MVL (R-MVL) and proteomic changes in A549 cells, and to identify the molecular pathways responsible for the anti-cancer action of R-MVL. We found that R-MVL induces A549 cells apoptosis in a dose-dependent manner by using MTT assay, fluorescent microscope (FM) and flow cytometry (FCM), and the IC50 was calculated to be 24.12 μg/ml. Subsequently, 7 altered proteins in R-MVL-treated A549 cells were identified, including upregulated aldehyde dehydrogenase 1 and β-actin, and five downregulated proteins: heat shock protein 90, heat shock 60, plastin 3, tropomyosin 3, and β-tubulin. Further bioinformatics analysis predicted the potential pathways for R-MVL to induce apoptosis of A549 cells. In conclusion, this is the first report to investigate anti-cancer activity of R-MVL and its mechanism of action by proteomics analysis. Our observations provide potential therapeutic targets for lung cancer inhibitor intervention and implicated the development of novel anti-cancer therapeutic strategies.
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Affiliation(s)
- Yuqin Li
- College of Light Industry and Food Sciences, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China
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Zheng LW, Li Y, Ge D, Zhao BX, Liu YR, Lv HS, Ding J, Miao JY. Synthesis of novel oxime-containing pyrazole derivatives and discovery of regulators for apoptosis and autophagy in A549 lung cancer cells. Bioorg Med Chem Lett 2010; 20:4766-70. [DOI: 10.1016/j.bmcl.2010.06.121] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 06/22/2010] [Accepted: 06/23/2010] [Indexed: 01/07/2023]
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Abd-Elzaher MM, Moustafa SA, Labib AA, Ali MM. Synthesis, characterization, and anticancer properties of ferrocenyl complexes containing a salicylaldehyde moiety. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-010-0268-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis, single-crystal characterization and preliminary biological evaluation of novel ferrocenyl pyrazolo[1,5-a]pyrazin-4(5H)-one derivatives. Eur J Med Chem 2010; 45:210-8. [DOI: 10.1016/j.ejmech.2009.09.046] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 09/01/2009] [Accepted: 09/26/2009] [Indexed: 12/28/2022]
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Mooney Á, Corry AJ, Ruairc CN, Mahgoub T, O'Sullivan D, O'Donovan N, Crown J, Varughese S, Draper SM, Rai DK, Kenny PTM. Synthesis, characterisation and biological evaluation of N-(ferrocenyl)naphthoyl amino acid esters as anticancer agents. Dalton Trans 2010; 39:8228-39. [DOI: 10.1039/c0dt00377h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lian S, Su H, Zhao BX, Liu WY, Zheng LW, Miao JY. Synthesis and discovery of pyrazole-5-carbohydrazide N-glycosides as inducer of autophagy in A549 lung cancer cells. Bioorg Med Chem 2009; 17:7085-92. [DOI: 10.1016/j.bmc.2009.09.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Revised: 09/02/2009] [Accepted: 09/03/2009] [Indexed: 10/20/2022]
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Xie YS, Zhao BX, Lv HS, Li JK, Wang BS, Shin DS. Synthesis and single-crystal characterization of novel 2-ferrocenyl-4H-pyrazolo[5,1-c][1,4]oxazin-4-one derivatives. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.04.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhang JH, Zuo H, Xie YS, Zhao BX. 2-(4-Chloro-phen-yl)-5-(3,4-dimethoxy-pheneth-yl)-6,7-dihydro-pyrazolo[1,5-a]pyrazin-4(5H)-one. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1457. [PMID: 21582761 PMCID: PMC2969350 DOI: 10.1107/s1600536809020212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 05/27/2009] [Indexed: 11/10/2022]
Abstract
In the title compound, C22H22ClN3O3, the dihedral angles between the planes of the benzene rings and the pyrazole ring are 16.05 (10) and 84.84 (10)°. The conformation of the six-membered heterocyclic ring is close to a screw-boat. The crystal packing is stabilized by weak intermolecular C—H⋯O interactions and is also consolidated by C—H⋯π interactions.
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Manlove A, Groziak MP. Chapter 6.2: Six-Membered Ring Systems: Diazines and Benzo Derivatives. PROGRESS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0959-6380(09)70040-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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