雙氟喹諾酮類查爾酮衍生物的合成與抗腫瘤活性研究
[Abstract]:At present, with the influence of various factors, the incidence of the tumor is increasing year by year, and has been a common disease that threatens the health of human life. The present anti-tumor medicine has made great breakthrough in improving the survival time of the patient and improving the quality of life, but the anti-tumor drugs cause serious side effects due to the selective difference, Meanwhile, the defects of the drug resistance and the like greatly influence the clinical curative effect of the anti-tumor medicament. Therefore, seeking a more ideal anti-tumor drug has become a major task of the world's scientific workers to actively explore the research. The invention relates to an anti-infective agent which is characterized by the following components in the structure and function of a target enzyme-topoisomerase (TOPO) and a TOPO in a mammalian cell due to the action of the anti-bacterial florfenone (FQ) and the TOPO in the mammalian cell, So that its antibacterial activity can be converted into anti-tumor activity. In recent years, a large amount of structural modification has been carried out on the Leninone drug to obtain the candidate compound having the potential anti-tumor activity, but not to the clinical evaluation due to the biological problems such as in vivo toxicity or bioavailability or stability. Therefore, the new structure modification method is found, and the high-efficiency and low-toxic lead compound is obtained, which is a new challenge facing the research of the anti-tumor flurolenin drug. Although there are various mechanisms of tumor pathogenesis, the overexpression of DNA topoisomerase (TOPO) and protein tyrosine kinase (PTK) is closely related to the occurrence, development and metastasis of tumor. Many of the inhibitors acting on these two targets have been effectively applied to the chemotherapy of clinical tumors. Therefore, on the basis of the existing drug structure, it is of great significance to design the leading compound which acts on TOPO or (and) PTK target based on the existing drug structure. On the one hand, reference to the anti-tumor PTK inhibitor, psunitinib, is a "chalcone" molecule of the structure of the antigen, the p-unsaturated ketone, which is constructed from the framework of the donor and the alicyclic amine, and on the other hand, on the basis of the formula, The 1-unsaturated ketone framework is a structural characteristic, and the chalcone compound is widely present in the medicinal natural product, and has strong anti-tumor activity. To this end, the structure of chalcone and FQ is combined with the structure of chalcone and FQ, and the new difluoro-noone "chalcone" derivatives are skillfully designed by means of the combination of the pharmacophore and the molecular construction of the framework. And finally, the initial structure-effect relationship is obtained through the in-vitro pharmacological activity screening, and a new approach and a method are provided for the design of the anti-tumor fluoxolone "chalcone" lead compound. The design and synthesis of the target compound first converts the FQ into a fluoromethyl-ketone aldehyde and a dihydro-fluoromethyl ketone, and then the fluoronorone aldehyde and the dihydro-fluoromethyl-ketone are subjected to a Claisen-Schmidt condensation reaction to form an activated alkene methyl connecting chain to obtain a difluoro-noone-like chalcone derivative, and the product is subjected to an MS, 1H NMR spectral data characterization. In vitro anti-tumor activity was evaluated by MTT assay to evaluate the anti-proliferative activity of the difluoro-1-type chalcone derivatives on human pancreatic cancer Panc, bladder cancer T24, gastric cancer HGC823, prostate cancer PU145, gastric cancer HGC27, and pancreatic cancer Capan-1 cells. The results showed that the anti-tumor activity of the obtained target compound was stronger than that of the corresponding parent compound, and the IC50 value of the compounds E5, E6, F1, F4, F5 and F6 was between 0.13 and 0.69. m Conclusion The structure of 24 difluoro-one-like chalcone derivatives has been synthesized and its structure is confirmed by the spectral data. The results of in vitro anti-tumor activity show that the anti-tumor activity of the target compound is stronger than that of the corresponding parent compound. Therefore, the novel difluoro-one-like chalcone compound has the prospect of development as a lead compound, and has the value of further research.
【學(xué)位授予單位】:河南大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:R914;R96
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