The place of dibenzo[b,f]thiepin derivatives in medicinal chemistry: Structures and activities

Synthesis, Molecular Docking and In Vivo Biological Evaluation of Iminostilbene Linked 1,2,3-Triazole Pharmacophores as Promising AntiAnxiety and Anti-Inflammatory Agents

BACKGROUND

Iminostilbene and 1,2,3-triazole ring containing compounds are considered as beneficial substrates in drug design.

OBJECTIVES

This study was aimed at the synthesis of novel series of iminostilbene linked 1,2,3- triazole pharmacophores (7c-n) by Cu(I) catalyzed 1,3 dipolar cycloaddition reaction between 5- (Prop-2-yn-1-yl)-5H-dibenzo[b,f]azepine (7b) and various substituted azidobenzene derivatives (3cn).

METHODS

The chemical structures of compounds were confirmed by 1 H NMR, 13C NMR, LC-MS and molecular docking studies were carried out through HEX docking software.

RESULTS

The in vivo anti anxiety capacity of the compounds was evaluated by using "elevated plus maze" (EPM), anxiety model. The results exhibited that compounds (7d, 7e, 7j and 7k) have a higher anti anxiety effect close to diazepam. The anti-inflammatory activities of the synthesized compounds were evaluated by "Carrageenan-induced rat paw edema" model, compounds (7b, 7c, 7d, 7f, and 7j) demonstrated statistically significant inflammatory activity. Molecular docking analysis revealed that compounds (7d, 7e and 7j) bound to GABA(A) proteins show more efficiency when compared to the other analogues in the series.

CONCLUSION

These results suggest that compounds (7b, 7c, 7d, 7e, 7f, and 7j) can be considered as novel candidates for anti-anxiety and anti-inflammatory agents. Moreover, docking method was used to elucidate anti-anxiety effect of compounds. This study furnished insight into the molecular interactions of synthesized compounds with their physiological targets, and the potential to develop bioactive heterocyclic compounds.

Valence isomerization of cyclohepta-1,3,5-triene and its heteroelement analogues

The valence isomerization of the all-carbon and heteroelement analogues of cyclohepta-1,3,5-triene into the corresponding bicyclo[4.1.0]hepta-2,4-dienes is reviewed to show the impact of the heteroatom on the stability of both valence isomers. The focus is on the parent systems and their synthetic applications.