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Two new C2 symmetric macrocycles, soluble in water, were prepared according to the one‐step procedure using azacrown ethers and azidosaccharides. Their complexes with p‐toluenesulfonamide were studied by proton NMR spectroscopy. The influence of the size of azacrown ether and the solvent effect on the stability of the guest–host complexes were examined.

Michalina Pintal was born in 1987 in Tarnogród, Poland. She received her M.Sc. in chemistry from the University of Łódź in 2011. Currently she works towards her Ph.D. under the supervision of Professor Bogusław Kryczka and Dr. Stanisław Porwański at the same university. Her research interests focus on the synthesis of urea derivatives of carbohydrate and azacrown ethers and their complexing properties.