108608-03-3Relevant academic research and scientific papers
Design and synthesis of novel tranilast analogs: Docking, antiproliferative evaluation and in-silico screening of TGFβR1 inhibitors
Ismail, Magda M.F.,El-Zahabi, Heba S.A.,Ibrahim, Rabab S.,Mehany, Ahmed B.M.
, (2020)
The discovery of the antiproliferative potential of tranilast prompted additional studies directed at understanding the mechanisms of tranilast action. Its inhibitory effect on cell proliferation depends principally on the capacity of tranilast to interfere with transforming growth factor beta (TGFβR1) signaling. This work summarizes design, synthesis and biological evaluation of sixteen novel tranilast analogs on different tumors such as PC-3, HepG-2 and MCF-7 cell lines. The in vitro cytotoxicity was evaluated using MTT assay showed that, twelve compounds out of sixteen showed higher cytotoxic activities (IC50’s 1.1–6.29 μM), than that of the reference standard, 5-FU (IC50 7.53 μM). The promising cytotoxic hits (4b, 7a, b and 14c-e), proved to be selective to cancer cells when their cytotoxicity's are examined on human normal cell line (WI-38). Then they are investigated for their possible mode of action as TGFβR1 inhibitors; remarkable inhibition of TGFβR1 by these hits was observed at the range of IC50 0.087–3.276 μM. The cell cycle analysis of the most potent TGFβR1 inhibitor, 4b revealed cell cycle arrest at G2/M phase on prostate cancer cells. Additionally, it is clearly indicated apoptosis induction at Pre-G1 phase, this is substantiated by significant increase in the expression on the tumor suppressor gene, p53 and up regulation the level of apoptosis mediator, caspase-3. In addition, in silico study was performed for validating the physicochemical and ADME properties which revealed that, all compounds are orally bioavailable with no side effects complying with Lipinski rule. The proposed mode of action can be further explored on the light of molecular modeling simulation of the most potent compounds, 4b and 14e which were docked into the active sites of TGFβR1 to predict their affinities toward the receptor.
Combating P-glycoprotein-mediated multidrug resistance with 10-O-phenyl dihydroartemisinin ethers in MCF-7 cells
Zhong, Hang,Zhao, Xuan,Zuo, Zhizhong,Sun, Jingwei,Yao, Yao,Wang, Tao,Liu, Dan,Zhao, Linxiang
, p. 720 - 729 (2016)
A series of 10-β-phenyl ethers of dihydroartemisinin (DHA) with piperazine substitutions were synthesized with the goal of overcoming multidrug resistance in cancer therapy. These novel compounds exerted significant antiproliferative activities in breast
Excited-state relation dynamics of a PYP chromophore model in solution: Influence of the thioester group
Changenet-Barret, Pascale,Espagne, Agathe,Katsonis, Nathalie,Charier, Sandrine,Baudin, Jean-Bernard,Jullien, Ludovic,Plaza, Pascal,Martin, Monique M.
, p. 285 - 291 (2002)
Cis-trans photoisomerization of a photoactive yellow protein chromophore model, the deprotonated trans S-phenyl thio-p-hydroxycinnamate, is studied in aqueous solution by subpicosecond transient absorption and gain spectroscopy. The excited-state deactiva
Cinnamyl-containing rupestonic acid methyl ester derivative as well as preparation method and application of rupestonic acid methyl ester derivative
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Paragraph 0133-0134; 0137, (2021/06/02)
The invention relates to a cinnamyl-containing rupestonic acid methyl ester derivative as well as a preparation method and application thereof, the derivative is prepared by the following steps: reacting rupestonic acid with dimethyl sulfate to obtain rupestonic acid methyl ester, and then obtaining 2-hydroxyl rupestonic acid methyl ester under the oxidation of camphor sulfonyl acridine. and then reacting with cinnamyl chloride under the catalysis of DMAP to obtain 20 rupestonic acid methyl ester derivatives containing cinnamyl groups. The method has the advantages of mild reaction conditions and simple experimental steps. The obtained 1d-20d rupestonic acid methyl ester derivatives containing the cinnamyl groups are subjected to a preliminary in-vitro anti-influenza A H3N2 virus activity test. Experimental results show that the compounds show good activity in 7d, 15d and 18d, and can be used as drugs for resisting influenza A H3N2 virus.
Coumaroyl ester connected macrolide derivative and preparation method thereof
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Paragraph 0012; 0025, (2017/08/30)
The invention belongs to the field of medicinal chemistry and in particular relates to a coumaroyl ester connected macrolide derivative and a preparation method thereof. The coumaroyl ester connected macrolide derivative has the following structure, wherein the structural formula is as shown in the specification. The synthetic method comprises the following steps: synthesizing macrosphelide A first, oxidizing the macrosphelide A into 8-carbonyl oxidation product and a 14-carbonyl oxidation product by Dess-Martin periodinane, enabling three compounds, namely the macrosphelide A, the 8-carbonyl oxidation product and macrosphelide B, to respectively react with coumaroyl chloride, thereby obtaining the corresponding coumaroyl ester connected macrolide derivatives. The coumaroyl with effects of enhancing the anti-inflammatory and antineoplastic activities is introduced into the macrolide structure part. Compared with the macrolide structure, the coumaroyl ester connected macrolide derivative has the characteristics of improving the drug efficacy, reducing the toxic and side effects and the like.
General and Efficient Intermolecular [2+2] Photodimerization of Chalcones and Cinnamic Acid Derivatives in Solution through Visible-Light Catalysis
Lei, Tao,Zhou, Chao,Huang, Mao-Yong,Zhao, Lei-Min,Yang, Bing,Ye, Chen,Xiao, Hongyan,Meng, Qing-Yuan,Ramamurthy, Vaidhyanathan,Tung, Chen-Ho,Wu, Li-Zhu
supporting information, p. 15407 - 15410 (2017/11/13)
[2+2] Photocycloaddition, for example, the dimerization of chalcones and cinnamic acid derivatives, is a unique strategy to construct cyclobutanes, which are building blocks for a variety of biologically active molecules and natural products. However, most attempts at the above [2+2] addition have focused on solid-state, molten-state, or host–guest systems under ultraviolet-light irradiation in order to overcome the competition of facile geometric isomerization of nonrigid olefins. We report a general and simple method to realize the intermolecular [2+2] dimerization reaction of these acyclic olefins to construct cyclobutanes in a highly regio- and diastereoselective manner in solution under visible light, which provides an efficient solution to a long-standing problem.
NITROGEN-CONTAINING HETEROCYCLIC RING SUBSTITUTED DIHYDROARTEMISININ DERIVATIVES AND USE THEREOF
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Paragraph 0132; 0133, (2016/03/01)
The present invention belongs to the field of medicinal technique, specifically relates to nitrogen-containing heterocyclic ring-substituted dihydroartemisinin derivatives and their optical isomers according to formula I or II; wherein substituent X, Y, r
Synthesis and biological evaluation of N-cinnamoyl and mandelate metformin analogues
Anitha Kumari,Bharathi,Prabhu,Ponnudurai
, p. 1895 - 1898 (2016/07/06)
A series of N,N-dimethyl-N1-[3-(substituted phenyl)-1-oxo-2-propenyl]biguanides were synthesized by coupling a solution of metformin in pyridine with different cinnamoyl chloride derivatives in ether for 3 h in addition to synthesis of some five molecules of metformin-mandelates. All the synthesized cinnamoyl metformins and a few metformin-mandelates were characterized by IR, NMR and Mass spectroscopic techniques. All the synthesized compounds were also evaluated for their antioxidant activity by DPPH scavenging method and nitric oxide scavenging method. All the compounds exhibited good antioxidant activity.
Design, synthesis and cytotoxic evaluation of novel imatinib amide derivatives that target Abl kinase
Yao, Ri-Sheng,Guan, Qiu-Xiang,Lu, Xiao-Qin,Ruan, Ban-Feng
, p. 20 - 28 (2015/03/31)
Novel imatinib amide derivatives (a1-28, b1-9) were synthesized and evaluated for their biological activities. All compounds were characterized by 1H NMR, MS and elemental analysis. Among all the derivatives, compounds a4, a10, a21, b1 and b2 displayed the most significant ability of inhibiting K562 cell proliferation with the IC50 values of 0.67, 0.66, 0.65, 0.59 and 0.62 μM, respectively, indicating that these compounds were potent inhibitors of Bcr-Abl in leukemic K562 cells, comparable to the reference compound imatinib. Molecular docking study was performed to position compounds a21 and b1 into the active site of Abl to determine the probable binding modes
Inhibitory effects of substituted cinnamic acid esters on mushroom tyrosinase
Zhang, Zhenghua,Liu, Jinbing,Wu, Fengyan,Zhao, Liangzhong
, p. 529 - 534 (2013/07/26)
A series of substituted cinnamic acid esters were synthesized and their inhibitory effects on the diphenolase activity of mushroom tyrosinase were evaluated. Compound 8 was found to be the most potent inhibitor with IC 50 value of 5.60μM. Preliminary structure activity relationships (SARs) were concluded. The inhibition kinetics analyzed by Lineweaver-Burk plots revealed that compound 8 was anti-competitive inhibitor.
