4946-06-9Relevant academic research and scientific papers
Discovery of Novel KRAS-PDEδ Inhibitors by Fragment-Based Drug Design
Chen, Long,Zhuang, Chunlin,Lu, Junjie,Jiang, Yan,Sheng, Chunquan
supporting information, p. 2604 - 2610 (2018/03/26)
Targeting KRAS-PDEδ protein-protein interactions with small molecules represents a promising opportunity for developing novel antitumor agents. However, current KRAS-PDEδ inhibitors are limited by poor cellular antitumor potency and the druggability of the target remains to be validated by new inhibitors. To tackle these challenges, herein, novel, highly potent KRAS-PDEδ inhibitors were identified by fragment-based drug design, providing promising lead compounds or chemical probes for investigating the biological functions and druggability of KRAS-PDEδ interaction.
Dihydro quinazolinone derivative, as well as preparation method and application thereof
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Paragraph 0126; 0127, (2018/07/30)
The invention relates to the technical field of medicines, in particular to a new dihydro quinazolinone derivative with the following chemical structure general formula and pharmaceutically acceptablesalts thereof, (the formula is shown in the description.), A pharmacological experiment shows that the derivative or the salt provided by the invention has higher inhibitory activity on KRAS-PDE delta protein interaction, and has higher anti-tumor activity in vitro. The invention also provides a preparation method of the derivative and the pharmaceutically acceptable salts thereof, and application to preparatioin of a KRAS-PDE delta inhibitor and an anti-tumor drug.
Benzimidazoles for the treatment of cancer
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Paragraph 0107-0108, (2014/03/22)
The present invention relates to novel substituted benzimidazoles and stereoisomeric forms, prodrugs, solvates, hydrates and/or pharmaceutically acceptable salts of these compounds as well as pharmaceutical compositions containing at least one of these substituted benzimidazoles together with pharmaceutically acceptable carrier, excipient and/or diluents. Said novel substituted benzimidazoles binding to the prenyl binding pocket of PDEδ have been identified as useful for the prophylaxis and treatment of cancer by the inhibition of the binding of PDEδ to K-Ras and of oncogenic Ras signalling in cells by altering its localization leading to cell death or inhibition of proliferation.
BENZIMIDAZOLES FOR THE TREATMENT OF CANCER
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Page/Page column 66-67, (2014/03/22)
The present invention relates to novel substituted benzimidazoles and stereoisomeric forms, prodrugs, solvates, hydrates and/or pharmaceutically acceptable salts of these compounds as well as pharmaceutical compositions containing at least one of these substituted benzimidazoles together with pharmaceutically acceptable carrier, excipient and/or diluents. Said novel substituted benzimidazoles binding to the prenyl binding pocket of PDEδ have been identified as useful for the prophylaxis and treatment of cancer by the inhibition of the binding of PDEδ to K-Ras and of oncogenic Ras signalling in cells by altering its localization leading to cell death or inhibition of proliferation.
"All-water" one-pot diverse synthesis of 1,2-disubstituted benzimidazoles: Hydrogen bond driven 'synergistic electrophile-nucleophile dual activation' by water
Kommi, Damodara N.,Jadhavar, Pradeep S.,Kumar, Dinesh,Chakraborti, Asit K.
, p. 798 - 810 (2013/04/24)
A new "all-water" tandem arylaminoarylation/arylaminoalkylation- reduction-cyclisation route is reported for one-pot diversity oriented synthesis of regiodefined 1,2-disubstituted benzimidazoles. Water plays a crucial and indispensable role through hydrogen bond driven 'synergistic electrophile-nucleophile dual activation' in the formation of N-mono-aryl/aryl alkyl/alkyl/cycloalkyl o-nitroanilines under metal and base-free conditions to replace the transition metal-based C-N bond formation (aryl amination) chemistry and underlines the origin of regiodefined installation of the diverse selection of aryl, aryl alkyl, and alkyl/cycloalkyl groups as substituents on the benzimidazole scaffold to form the 1,2-disubstituted benzimidazoles. The influence of the hydrogen bond effect of water in promoting the arylaminoarylation reaction under base and metal-free conditions has been realized through observation of inferior yields in D2O compared to that obtained in water during the reaction of o-fluoronitrobenzene with aniline separately performed in water and D2O under similar experimental conditions. Water also provides assistance in promoting the subsequent nitro reduction and in the final cyclocondensation steps. The role of water in promoting the cyclocondensation reaction through hydrogen bonds is realized by the differential product yields during the reaction of mono-N-phenyl-o- phenylenediamine with benzaldehyde performed separately in water and D 2O. The better hydrogen bond donor and hydrogen bond acceptor abilities of water compared to those of the organic solvents are the contributing/deciding factors for making the new water-assisted tandem arylaminoarylation/arylaminoalkylation-reduction-cyclisation strategy for the diversified synthesis of the regiodefined 1,2-disubstituted benzimidazoles effective in an aqueous medium, making it represent a true "all-water chemistry."
