Methods of synthesizing glycoluril-based macrocyclic compounds as precursors for polymeric compounds

This review study considers the classification of data on synthesis methods and practically valuable features of glycoluril-based macrocyclic nitrogen-containing compounds as precursors for polymeric compounds. General data about glycoluril and tetra-N-hydroxymethylglycoluril as parental bases for various macrocyclic compounds were considered. Generalized experimental facts about methods for glycoluril direct N-functionalization and its N-hydroxymethyl derivative reactions in macrocycles and polymeric compound synthesis are given

The Determination of the Biocompatibility of New Compositional Materials, including Carbamide-Containing Heterocycles of Anti-Adhesion Agents for Abdominal Surgery

Due to traumatic injuries, including those from surgical procedures, adhesions occur in over 50% of cases, necessitating exclusive surgical intervention for treatment. However, preventive measures can be implemented during abdominal organ surgeries. These measures involve creating a barrier around internal organs to forestall adhesion formation in the postoperative phase. Yet, the effectiveness of the artificial barrier relies on considerations of its biocompatibility and the avoidance of adverse effects on the body. This study explores the biocompatibility aspects, encompassing hemocompatibility, cytotoxicity, and antibacterial and antioxidant activities, as well as the adhesion of blood serum proteins and macrophages to the surface of new composite film materials. The materials, derived from the sodium salt of carboxymethylcellulose modified by glycoluril and allantoin, were investigated. The research reveals that film materials with a heterocyclic fragment exhibit biocompatibility comparable to commercially used samples in surgery. Notably, film samples developed with glycoluril outperform the effects of commercial samples in certain aspects