New Macrocyclic Derivatives Containing Chiral and Linear Lateral Amino-Acid Moieties

We report the preparation of a new series of functionalized derivatives of dibenzo-18-crown-6, containing in second sphere of coordination lateral arms of different linear and chiral L-amino acids: glycine, β-alanine, 11-aminoundec-anoic acid, L-cysteine, L-aspartic acid, L-phenylalanine, L-tryptophan, L-histidine. All these new derivatives were characterized by elemental analysis, IR and 1H-NMR spectroscopy, and these data were in agreement with proposed molecular structures.