Applying a multistep approach, novel indolin-2-ones (IND) that possess an arylidene motif have been synthesized. Eight compounds were chosen for different biological tests (antimicrobial and cytotoxicity). IND containing 2-thienyl (4h) fragment have been found to exhibit good antimicrobial activity against . Molecules that have 3-aminophenyl (4d) or 2-pyridyl (4g) groups have shown the best antifungal activities against all tested fungi. These compounds have also been noticed as promising pharmaceuticals against MCF-7 cancer cell lines. Experimental outcomes from the investigation of the interaction of 4d with DNA implied its moderate binding to DNA ( = 1.35 × 10 and 3.05 × 10 M for EB and Hoechst binder, respectively). However, considerably stronger binding of 4d to BSA has been evidenced ( = 6.1 × 10 M). In summary, IND that contains -aminobenzylidene fragment (4d) exhibits a good dual biological activity making it a promising candidate for further investigation in the drug discovery sector.
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http://dx.doi.org/10.1039/d3ra04997c | DOI Listing |
Chem Commun (Camb)
December 2024
School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China.
A photocatalytic sulfamoylation/5- cyclization of ()-'-arylidene--phenylmethacrylohydrazides with sulfamoyl chlorides was developed. The chemoselective intramolecular addition of the carbon-centered radical intermediate to the CN bond in the hydrazone motif gave the sulfamoylated pyrazolin-5-one. Besides, sulfonyl chlorides are also suitable reaction partners to access sulfonylated pyrazolin-5-ones.
View Article and Find Full Text PDFJ Am Chem Soc
September 2024
Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science Westlake University, 600 Dunyu Road, Hangzhou 310030, China.
α-Aminonitriles are not only broadly useful building blocks but also structural motifs in bioactive molecules. The Strecker reaction is one of the most widely used methods for α-aminonitrile synthesis. However, a severe drawback in Strecker reactions is the required use of a stoichiometric amount of toxic cyanation reagents.
View Article and Find Full Text PDFChemistrySelect
March 2024
Department of Drug Discovery & Biomedical Sciences, University of South Carolina, 517 Sumter St., CLS 617, Columbia, SC 29208.
Urea and thiohydantoin are among the important privileged structures for drug discovery. We have developed a synthetic approach to the high-throughput synthesis of the heterobivalent compounds containing both urea and 5-arylidene-2-thiohydantoin functional groups. This synthetic methodology was applied to the synthesis of a mixture-based library containing a total of 5280 compounds in a positional scanning format.
View Article and Find Full Text PDFChem Commun (Camb)
March 2024
School of Pharmacy, Xinxiang University, Xinxiang 453000, P. R. China.
The effective and mild [4+1] annulation of ninhydrin-derived MBH carbonates with α,β-unsaturated ketones has been developed, providing a wide range of multisubstituted furans in high yields (up to 90%) with excellent β-regioselectivities. In contrast, the polysubstituted cyclopentenes bearing dispiro-bisindanedione motifs were obtained classical [3+2] annulations by employing ninhydrin-derived MBH carbonates with 2-arylidene-1,3-indandiones under the same catalytic conditions. Furthermore, the structures of two kinds of cycloadducts were straightforwardly confirmed through X-ray diffraction analysis.
View Article and Find Full Text PDFFront Chem
September 2023
Covenant University Bioinformatics Research (CUBRe), Covenant University, Ota, Ogun State, Nigeria.
Quinazolin-4(3)-one derivatives have attracted considerable attention in the pharmacological profiling of therapeutic drug targets. The present article reveals the development of arylidene-based quinazolin-4(3)-one motifs as potential antimicrobial drug candidates. The synthetic pathway was initiated through thermal cyclization of acetic anhydride on anthranilic acid to produce 2-methyl-4H-3,1-benzoxazan-4-one 1, which (upon condensation with hydrazine hydrate) gave 3-amino-2-methylquinazolin-4(3)-one 2.
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