Synthesis, anti-thymidine phosphorylase activity and molecular docking of 5-thioxo-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-ones
摘要:
In our lead finding program, a series of 5-thioxo-[1,2,4] triazolo[1,5-a][1,3,5]triazin-7-ones and their 5-thio- alkyl derivatives were designed and synthesized which contained different substituents at ortho-position of 2-phenyl ring attached to the fused ring structure. The preliminary pharmacological evaluation demonstrated that the synthesized compounds exhibited a varying degree of inhibitory activity towards thymidine phosphorylase (TP), comparable to reference compound, 7-Deazaxanthine (7-DX, 2) (IC50 value = 42.63 mu M). The study also inferred that the ortho-substituted group at the phenyl ring and 5-thio-alkyl moiety imparted steric hindrance effects in the binding site of the enzyme, leading to a reduced inhibitory response. In addition, compound 3a was identified as a mixed-type inhibitor of TP. Moreover, computational docking study was performed to illustrate the important structural information on the plausible ligand-enzyme binding interactions. (C) 2013 Elsevier Inc. All rights reserved.
A Novel Iron-catalyzed One-pot Synthesis of 3-Amino-1,2,4-triazoles
作者:Taoufik Rohand、Victor N. Mkpenie、Mohammadine El Haddad、István E. Markó
DOI:10.1002/jhet.3450
日期:2019.2
A novel one‐pot synthesis of 3‐amino‐1,2,4‐triazole developed via iron (III) catalyzed route is reported. The new method is more efficient, simple, and convenient and presents a concise new strategy for the synthesis of 3‐amino‐1,2,4‐triazole derivatives. The iron (III) complex intermediate assisted in the intramolecular bond cyclization owing to its Lewis acidity or oxidizing properties. A series
Phosphorylation of 5-Amino-1H-1,2,4-triazoles with Diethyl Phosphorochloridate
作者:D. Yu. Voronina、A. S. Krylov、V. V. Tolstyakov、A. V. Dogadina
DOI:10.1134/s1070363224010067
日期:2024.1
Abstract New phosphorylated 5-amino-1H-1,2,4-triazoles were obtained by the chemoselective reaction of diethylphosphorochloridate with 5-amino-1H-1,2,4-triazoles. The structure of the synthesized compounds was characterized by 1H, 13C, and 31P NMR spectroscopy and mass spectrometry.