- Design and microwave synthesis of new (5z) 5-arylidene-2-thioxo-1,3-thiazolinidin-4-one and (5z) 2-amino-5-arylidene-1,3-thiazol-4(5h)-one as new inhibitors of protein kinase dyrk1a
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Here, we report on the synthesis of libraries of new 5-arylidene-2-thioxo-1,3-thiazolidin-4-ones 3 (twenty-two compounds) and new 2-amino-5-arylidene-1,3-thiazol-4(5H)-ones 5 (twenty-four compounds) with stereo controlled Z-geometry under microwave irradi
- Bazureau, Jean-Pierre,Bourahla, Khadidja,Carreaux, Fran?ois,Charlier, Thierry,Durieu, Emilie,Guihéneuf, Solène,Le Guével, Rémy,Limanton, Emmanuelle,Lozach, Olivier,Meijer, Laurent,Paquin, Ludovic,Rahmouni, Mustapha
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supporting information
(2021/11/08)
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- Environmentally friendly approach to knoevenagel condensation of rhodanine in choline chloride: Urea deep eutectic solvent and qsar studies on their antioxidant activity
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A series of rhodanine derivatives was synthesized in the Knoevenagel condensation of rhodanine and different aldehydes using choline chloride:urea (1:2) deep eutectic solvent. This environmentally friendly and catalyst free approach was very effective in
- Molnar, Maja,Brahmbhatt, Harshad,Rastija, Vesna,Pavi?, Valentina,Komar, Mario,Karna?, Maja,Babi?, Jurislav
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- New compounds having skin whitening, antioxidant and PPAR activity, and medical use thereof
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PURPOSE: A novel compound with skin whitening, antioxidation, and PPAR activation effects, and a medical use thereof are provided to be used for a pharmaceutical composition or a cosmetic product. CONSTITUTION: A compound is denoted by chemical formula 1. A skin whitening composition contains the compound as an active ingredient. An antioxidative composition for preventing or treating oxidative diseases contains the compound of chemical formula 1 as an active ingredient. The oxidative diseases are selected among skin aging, pigmentation, wrinkling, psoriasis, or eczema. The composition prevents or treats diseases which are regulated by PPAR(peroxisome proliferator-activated receptor) activity. The PPAR includes PPAR alpha or PPAR gamma.
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Paragraph 0280; 0283
(2017/04/14)
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- NOVEL COMPOUND HAVING SKIN-WHITENING, ANTI-OXIDIZING AND PPAR ACTIVITIES AND MEDICAL USE THEREFOR
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Provided are a novel compound having skin-whitening, anti-oxidizing and PPAR activities and a medical use thereof, and the compound has skin-whitening activities for the suppression of tyrosinase, and accordingly, is useful for use in skin-whitening pharmaceutical composition or cosmetic products; has anti-oxidant activities, and accordingly, is useful for the prevention and treatment of skin-aging; and has PPAR activities, and in particular, PPARα and PPARγ activities, and accordingly, is useful for use in pharmaceutical compositions or health foods which are effective for the prevention and treatment of obesity, metabolic disease, or cardiovascular disease.
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Paragraph 0203; 0205
(2014/02/16)
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- Privileged scaffolds or promiscuous binders: A comparative study on rhodanines and related heterocycles in medicinal chemistry
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Rhodanines and related five-membered heterocycles with multiple heteroatoms have recently gained a reputation of being unselective compounds that appear as "frequent hitters" in screening campaigns and therefore have little value in drug discovery. However, this judgment appears to be based mostly on anecdotal evidence. Having identified various rhodanines and related compounds in screening campaigns, we decided to perform a systematic study on their promiscuity. An amount of 163 rhodanines, hydantoins, thiohydantoins, and thiazolidinediones were synthesized and tested against several targets. The compounds were also characterized with respect to aggregation and electrophilic reactivity, and the binding modes of rhodanines and related compounds in published X-ray cocrystal structures were analyzed. The results indicate that the exocyclic, double bonded sulfur atom in rhodanines and thiohydantoins, in addition to other structural features, offers a particularly high density of interaction sites for polar interactions and hydrogen bonds. This causes a promiscuous behavior at concentrations in the "screening range" but should not be regarded as a general knockout criterion that excludes such screening hits from further development. It is suggested that special criteria for target affinity and selectivity are applied to these classes of compounds and that their exceptional and potentially valuable biomolecular binding properties are consequently exploited in a useful way.
- Mendgen, Thomas,Steuer, Christian,Klein, Christian D.
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supporting information; experimental part
p. 743 - 753
(2012/03/11)
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- Design and synthesis of novel bis-thiazolone derivatives as micromolar CDC25 phosphatase inhibitors: Effect of dimerisation on phosphatase inhibition
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CDC25 phosphatases are involved in deregulated cell cycle progression and tumor development with poor prognosis. Among the most potent CDC25 inhibitors, quinonoid-based derivatives have been extensively studied. Dimerisation of heterocyclic quinones has led to IRC-083864, a bis-quinone compound with increased CDC25B inhibitory activity. Thirty-one bis-thiazolone derivatives were synthesized and assayed for CDC25 inhibitory activity. Most of the dimers displayed enhanced inhibitory activities with micromolar IC50 values lower than that observed for each thiazolone scaffold separately. Moreover, most of these compounds were selective CDC25 inhibitors. Dimer 40 showed an IC 50 value of 2.9 μM and could inhibit CDC25 activity without generating reactive oxygen species which is likely to occur with quinone-based inhibitors. Molecular docking studies suggested that the dimers could bind simultaneously to the active site and the inhibitor binding pocket.
- Sarkis, Manal,Tran, Diem Ngan,Kolb, Stephanie,Miteva, Maria A.,Villoutreix, Bruno O.,Garbay, Christiane,Braud, Emmanuelle
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p. 7345 - 7350
(2013/02/23)
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- 5-benzylidenethiazolidin-4-ones as multitarget inhibitors of bacterial Mur ligases
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Mur ligases participate in the intracellular path of bacterial peptidoglycan biosynthesis and constitute attractive, although so far underexploited, targets for antibacterial drug discovery. A series of hydroxy-substituted 5-benzylidenethiazolidin-4-ones
- Tomasic, Tihomir,Zidar, Nace,Kovac, Andreja,Turk, Samo,Simcic, Mihael,Blanot, Didier,Mueller-Premru, Manica,Filipic, Metka,Grdadolnik, Simona Golic,Zega, Anamarija,Anderluh, Marko,Gobec, Stanislav,Kikelj, Danijel,Masic, Lucija Peterlin
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experimental part
p. 286 - 295
(2010/12/18)
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- Rhodanine derivatives as novel inhibitors of PDE4
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The discovery, synthesis and in vitro activity of a novel series of rhodanine based phosphodiesterase-4 (PDE4) inhibitors is described. Structure-activity relationship studies directed toward improving potency led to the development of submicromolar inhibitors 2n and 3i (IC50 = 0.89 & 0.74 μM). The replacement of rhodanine with structurally related heterocycles was also investigated and led to the synthesis of pseudothiohydantoin 7 (IC50 = 0.31 μM).
- Irvine, Mark W.,Patrick, Graham L.,Kewney, Justin,Hastings, Stuart F.,MacKenzie, Simon J.
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p. 2032 - 2037
(2008/12/21)
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- Low molecular weight Myc-Max inhibitors
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Compounds and compositions for interfering with the association of Myc and Max are described herein. These compounds and compositions are useful in methods inhibiting growth or proliferation of a cell. Methods of inhibiting growth or proliferation of a ce
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Page/Page column 9
(2008/06/13)
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- A practical access to novel 2-amino-5-arylidene-1,3-thiazol-4(5H)-ones via sulfur/nitrogen displacement under solvent-free microwave irradiation
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A new effective approach to the synthesis of a small library of 2-amino-5-arylidene-1,3-thiazol-4(5H)-ones was reported using solvent-free reaction conditions under microwave irradiation. In the first step, rhodanines were subjected to Knoevenagel condens
- Bourahla, Khadidja,Derdour, A?cha,Rahmouni, Mustapha,Carreaux, Fran?ois,Bazureau, Jean Pierre
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p. 5785 - 5789
(2008/02/09)
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- New solid phase Knoevenagel catalyst
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A new solid phase Knoevenagel catalyst has been prepared and evaluated. The new resin based catalyst reduces by-product formation and has the advantage over conventional Knoevenagel catalysts of simple removal by filtration.
- Simpson, Julie,Rathbone, Daniel L.,Billington, David C.
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p. 7031 - 7033
(2007/10/03)
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