Synthesis and biological evaluation of novel indoline-2,3-dione derivatives as antitumor agents

Synthesis of Novel Urea and Sulfonamide Derivatives of Isatin Schiff Bases as Potential Anti-cancer Agents

Background:

Among the many types of chemical scaffolds, isatin derivatives, including their Schiff bases, have been extensively studied to find novel therapeutic agents against cancer. Amide or urea groups containing derivatives were also discovered to be tyrosine kinase inhibitors.

Objective:

This study aims to find potent compounds by designing 16 novel urea and sulfonamide derivatives of isatin Schiff bases.

Method:

Compounds were tested against PC-3, HepG2, SH-SY5Y, A549 cancerous, and NIH/3T3 noncancerous cell lines using cell culture assay.

Results:

Among the tested compounds 7a, 7b, 7c, 7d, 7h, 8a, and 8f presented potential inhibitions against cellular proliferation activities of HepG2 cells with average IC50 values of 31.97, 42.13, 31.50, 47.98, 32.59, 43.44, and 37.81 μM, respectively. They showed better inhibition potencies than the reference compound doxorubicin, and its value was measured as 51.15 μM in the same culture assay. The cytotoxic activities of the compounds in other cell lines were found to be less potent compared to doxorubicin.

Conclusion:

In vitro experiments demonstrated that designed compounds have the first evidence that they might be active against hepatocellular carcinoma. According to ADME prediction results, all compounds presented drug-like and good metabolic properties.

Synthesis of heterocyclic compounds through nucleophilic phosphine catalysis

Nucleophilic phosphine catalysis is a practical and powerful tool for the synthesis of various heterocyclic compounds with the advantages of environmentally friendly, metal-free, and mild reaction conditions. The present report summarizes the construction of four to eight-membered heterocyclic compounds containing nitrogen, oxygen and sulphur atoms through phosphine-catalyzed intramolecular annulations and intermolecular [2+2], [3+2], [4+1], [3+1+1], [5+1], [4+2], [2+2+2], [3+3], [4+3] and [3+2+3] annulations of electron-deficient alkenes, allenes, alkynes and Morita-Baylis-Hillman carbonates.

Design, synthesis and biological evaluation of novel 2,3-indolinedione derivatives against mantle cell lymphoma

2,3-Indolinedione derivatives have been identified as a novel class of promising agents for cancer treatment. In this study, eighteen 2,3-indolinedione derivatives were designed and synthesized, and their anticancer activities against mantle cell lymphoma (MCL) cells were evaluated. Most of them exhibited significant antiproliferative activity against the tested cell lines, and compound K5 was the most potent (MCL cellular IC₅₀ = 0.4-0.7 μM). Further, compound K5 could induce cell apoptosis and cell cycle arrest in G2/M phase. Additionally, the results of drug-likeness analysis demonstrated that these novel 2,3-indolinedione derivatives could have potential as novel treatment strategies for MCL.

Phosphine-catalyzed [4+1] annulation of 2-tosylaminochalcones with allenoates: synthesis of trans-2,3-disubstitued indolines

Phosphine-catalyzed [4+1] annulation of 2-tosylaminochalcones with allenoates has been achieved, giving trans-2,3-disubstitued indolines as major diastereoisomers in moderate to good yields.