Synthesis of 1,3-diaryl-spiro[azetidine-2,3′-indoline]-2′,4-diones<i>via</i>the Staudinger reaction:<i>cis</i>- or<i>trans</i>-diastereoselectivity with different addition modes
A new synthetic approach for realizing biologically relevant bis-aryl spiro[azetidine-2,3′-indoline]-2′,4-diones was developed based on Staudinger ketene–imine cycloaddition through the one-pot reaction of substituted acetic acids and Schiff bases in the presence of oxalyl chloride and an organic base. A series of [azetidine-2,3′-indoline]-2′,4-diones were synthesized using this method. For comparison
Synthesis, Cytoprotective and Anti-Tumor Activities of Isatin Schiff Bases
作者:Gang Chen、Mei Meng、Yu Zhang、Xiaojiang Hao、Ye Wang、Shuzhen Mu
DOI:10.2174/1570180812666150514234029
日期:2015.10.12
A series of simple isatin Schiff bases were synthesized through the condensation reaction.
These isatin Schiff bases were characterized by NMR and MS, and the structure was discussed. Then,
the cytoprotective and anti-tumor activities of these compounds were evaluated. The results show that
several compounds show protection activity on the apoptosis of PC12 cells induced by H2O2, which
are more effective than that of (±) α-Tocophreol (VE) and isatin. Besides, some compounds also show
more potent anti-tumor activity against A549 and P388 cell lines than that of isatin.
Synthesis, biological activity and docking study of some new isatin Schiff base derivatives
作者:Javad Azizian、Mohammad K. Mohammadi、Omidreza Firuzi、Nima Razzaghi-asl、Ramin Miri
DOI:10.1007/s00044-011-9896-6
日期:2012.11
be the most potent molecule among the studied isatinderivatives. Dockingstudies of 3-substituted indolin-2-one scaffolds on vascular endothelial growth factor receptor 2 (VEGFR-2) involved in cell proliferation and angiogenesis was performed. 3-(naphthalen-1-ylimino) indolin-2-one and 3-(2-(4-nitrophenyl) hydrazono) indolin-2-one exhibited higher docking binding energies with receptor. For 3-(2-(4-nitrophenyl)
Isatin Schiff base, 3-(4-hydroxyphenylimino)indolin-2-one, was synthesized and analyzed by NMR and MS. The inhibition and the mechanism of the title compound on the corrosion of high protective Q235A steel in HCl solution were screened and discussed. The results indicated that it can inhibit the corrosion with moderate inhibition efficiency in different conditions and the inhibition mechanism of the corrosion inhibiting may be mainly contributed to the adsorption. While the isatin Schiff base was companied with hexamethylenetetramine (HMTA) and 1,4-dihydroxy-2-butyne (BOZ), the inhibition efficiency was enhanced effectively.
A convenient -diastereoselective synthesisof -isatin arylimines the aza-Wittig reaction
作者:Vadim E. Filatov、Dmitrii A. Iuzabchuk、Boris N. Tarasevich、Nikolai V. Zyk、Elena K. Beloglazkina
DOI:10.1016/j.mencom.2022.09.022
日期:2022.9
A generalsynthesis of NH-isatin N′-arylimines involves the aza-Wittig reaction of isatin and aryl azides, providing higher E-diastereoselectivity as compared to previously described methods. The procedure is applicable even to anilines which do not directly react with isatins.