108608-03-3Relevant articles and documents
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.
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
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.
