The study of the three-component interaction between isatin, α-amino acids and N,N'-di(3-carboxypropenoyl)-1,2-ethylenediamine and determination of the structure of the compounds obtained - Ye. I. Siumka; L. A. Shemchuk; V. P. Chernykh; R. H. Redkin (Journal of organic and pharmaceutical chemistry, 2018)