Synthesis and Anticancer Evaluation of Bis Furfurylidene-4-piperidone Analog of 5-Fluorouracil
作者:Rahul L. Jadhav、Pravin K. Pawar、Manisha V. Patil
DOI:10.14233/ajchem.2017.20487
日期:2017.4.30
5-Fluorouracil (5-FU) displayed several side effects due to its nonspecific cytotoxicity for tumour cells. In order to overcome these disadvantages, numerous modifications of the 5-fluorouracil structure have been performed. In the present study, bis furfurylidene-4-piperidone substituted 5-flurouracil derivative is prepared and evaluated against various cancer cells. The resultant derivative is characterized by spectral data. This compound having 1,5-diaryl-3-oxo-1,4-pentadinenyl pharmacophore which interact with cellular thiols and produces cytotoxic activity whereas 5-flurouracil part showed anticancer activity by interacting with nucleic acid. The resulting synthesized compound has been screened for in vitro cytotoxic property by SRB assay method against breast and colon cancer cell lines. The results indicate that, this compound showed equipotent cytotoxicity against human breast cell lines as compared to standard, 5-flurouracil and doxorubicin. Acute toxicity was determined by OECD-423 guidelines. In vivo anticancer activity was evaluated in Swiss albino mice bearing Ehrlich Ascites Carcinoma (EAC). This compound showed significant anticancer activity against Ehrlich Ascites Carcinoma in Swiss albino mice. This study revealed the potentiality of this molecule for further development as anticancer agents.
Investigation of fatty acid conjugates of 3,5-bisarylmethylene-4-piperidone derivatives as antitumor agents and human topoisomerase-IIα inhibitors
作者:Elizabeth Potter、Mamta Jha、Khushwant S. Bhullar、H.P. Vasantha Rupasinghe、Jan Balzarini、Amitabh Jha
DOI:10.1016/j.bmc.2014.12.042
日期:2015.2
A series of five 3,5-bisarylidene-4-piperidones designed as analogs of curcumin and their twenty five fatty acid conjugates were synthesized as candidate anticancer agents. The fatty acid conjugates were designed for efficient delivery of these compounds at the targeted cancer sites. The cytostatic potential of these compounds was evaluated against three representative cancer cell lines namely murine leukemic L1210 cells, and human T-lymphocyte CEM cells and cervical HeLa cells. Most compounds were found to exhibit significant anti-cancer activity in vitro. QSAR studies indicated electrophilicity of these compounds towards cellular nucleophiles may have a key role to play in their cytostatic activity. Representative compounds were also tested for topoisomerase II alpha inhibitory potential, which indicated strong catalytic inhibition of the enzyme in vitro. The data showed that the fatty acid conjugates also possessed robust antioxidant activity in multiple analyses. This study also indicated that these compounds prompted significantly lower cellular damage in human fibroblasts than a currently used cancer drug sorafenib in vitro. The wide spectrum of anticancer action, supplemented with antioxidant potential along with non-toxic manifestations, certainly augment the anticancer candidacy of the novel fatty acid conjugates. (C) 2014 Elsevier Ltd. All rights reserved.
Targeting HIV‐TB coinfection by developing novel piperidin‐4‐substituted imines: Design, synthesis, in vitro and in silico studies
作者:Avinash Kumar、Rajappan Revathi、Dharmarajan Sriram、Francesca Curreli、Asim K. Debnath、K. Sreedhara Pai、Suvarna G. Kini
DOI:10.1002/ardp.201800358
日期:2019.6
“Achilles heel” of the human immunodeficiency (HIV) ministration. HIV‐positive people are 16–27 times more prone to contract tuberculosis. But the adverse interaction between antiretroviral drugs and antitubercular drugs has made it necessary to look for a single drug regimen for HIV‐TB coinfection. Piperidine derivatives have been reported as anti‐HIV and anti‐TB agents. This inspired us to design, synthesize
结核病是人类免疫缺陷 (HIV) 部门的“阿喀琉斯之踵”。HIV 阳性者感染结核病的可能性是其他人的 16-27 倍。但是抗逆转录病毒药物和抗结核药物之间的不良相互作用使得寻找一种单一的药物治疗方案来治疗 HIV-TB 合并感染是必要的。哌啶衍生物已被报道为抗 HIV 和抗结核药物。这启发了我们设计、合成和表征一系列 3,5-双(呋喃-2-基亚甲基)-哌啶-4-取代的亚胺(R1-R25),并进一步筛选了这些对结核分枝杆菌的体外抗结核活性H37Rv 和抗 HIV 活性。分子对接研究表明,与 EACP 还原酶 (1ZID.pdb) 和逆转录酶 (1REV.pdb) 靶标的结合相互作用非常有利。化合物 R7、R12、R17、R18、发现 R19、R20 作为抗结核药物比乙胺丁醇更有效(MIC 3.125 μg/ml)。与用作抗 HIV 药物的标准药物齐多夫定 (IC50 = 5.7 ± 0.04