1615-06-1Relevant articles and documents
Towards the inhibition of protein–protein interactions (PPIs) in STAT3: Insights into a new class of benzothiadiazole derivatives
Asai, Akira,Colombo, Diego,Gelain, Arianna,Gilardoni, Ettore,Meneghetti, Fiorella,Mori, Matteo,Parkinson, Gary,Pedretti, Alessandro,Regazzoni, Luca,Villa, Stefania
, (2020)
Signal transducer and activator of transcription 3 (STAT3) is a validated anticancer target due to the relationship between its constitutive activation and malignant tumors. Through a virtual screening approach on the STAT3-SH2 domain, 5,6-dimethyl-1H,3H-2,1,3-benzothiadiazole-2,2-dioxide (1) was identified as a potential STAT3 inhibitor. Some benzothiadiazole derivatives were synthesized by employing a versatile methodology, and they were tested by an AlphaScreen-based assay. Among them, benzosulfamide 1 showed a significant activity with an IC50 = 15.8 ± 0.6 μM as a direct STAT3 inhibitor. Notably, we discovered that compound 1 was also able to interact with cysteine residues located around the SH2 domain. By applying mass spectrometry, liquid chromatography, NMR, and UV spectroscopy, an in-depth investigation was carried out, shedding light on its intriguing and unexpected mechanism of interaction.
Acid-catalyzed hydrolysis of 5-substituted-1H,3H-2,1,3-benzothiadiazole 2,2-dioxides (5-substituted benzosulfamides): Kinetic behavior and mechanistic interpretations
Gediz Erturk, Aliye,Bekdemir, Yunus
, p. 358 - 364 (2015)
The acid-catalyzed hydrolysis of a series of 5-substituted-1H,3H-2,1,3-benzothiadiazole 2,2-dioxides has been investigated in aqueous solutions of sulfuric, perchloric, and hydrochloric acid at 85.0 ± 0.05 °C. Analysis of the kinetic data by the excess acidity method, Arrhenius parameters, the order of the catalytic effects of strong acids, the kinetic deuterium isotope effect, and the substituent effect have indicated that the hydrolysis of 5-substituted benzosulfamides 1a, 1b, 1c, 1d occur with a mechanistic switchover from A2 to A1 in the studied range: an A2 mechanism in low acidity regions and an A1 mechanism in high acid concentrations.
BICYCLICALLY SUBSTITUTED URACILS AND THE USE THEREOF
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Paragraph 0846; 0847; 0848; 0849, (2015/06/03)
The present application relates to novel bicyclically substituted uracil derivatives, to processes for preparation thereof, to the use thereof alone or in combinations for treatment and/or prophylaxis of diseases, and to the use thereof for production of medicaments for treatment and/or prophylaxis of diseases.
Microwave-assisted synthesis of some substituted sulfamides
Gediz Erturk, Aliye,Bekdemir, Yunus
, p. 285 - 292 (2014/01/06)
Microwave-assisted synthesis of some substituted open-chain and cyclic sulfamides, by amine-exchange reaction, was studied in a modified domestic microwave oven. Reaction times and yields under microwave radiation were compared with classical heating. Synthesis of the sulfamides under microwave irradiation gave better yields with the desired compounds, and in considerably reduced reaction times, than those obtained by classical heating. [Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfer, and Silicon and the Related Elements for the following free supplemental files: Additional figures.]
PREVENTIVES/REMEDIES FOR URINARY DISTURBANCE
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Page 118, (2008/06/13)
Preventives/remedies for voiding disturbance containing a compound having both of an acetylcholinesterase inhibitory action and an α1 antagonistic action which exhibits an excellent effect of improving the urinary function of the bladder (i.e., effects of
Substituted and unsubstituted benzooxathiazoles and compounds derived therefrom
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, (2008/06/13)
The invention relates to substituted and unsubstituted 3H-benzo[1,2,3]oxathiazole 2,2-dioxides, 1,3-dihydrobenzo[1,2,5]thiadiazole 2,2-dioxides and 1,3-dihydro-benzo [c]isothiazole 2,2-dioxides, to their preparation and to their use in medicaments.