1196908-53-8

Upstream product

• 1196908-04-9 methyl N-cyano-4-methoxybenzimidate 
• 100-63-0 phenylhydrazine 
• 420-04-2 CYANAMID 
• 40277-63-2 4-methoxy-N'-phenylbenzohydrazonoyl chloride 
• 15089-03-9 4-methoxy-N'-phenylbenzohydrazide 
• 100-07-2 4-methoxy-benzoyl chloride 

Relevant academic research and scientific papers

1,2,4-Triazolo[1,5-a]quinoxaline derivatives and their simplified analogues as adenosine A3 receptor antagonists. Synthesis, structure-affinity relationships and molecular modeling studies

The 1,2,4-triazolo[1,5-a]quinoxaline (TQX) scaffold was extensively investigated in our previously reported studies and recently, our attention was focused at position 5 of the tricyclic nucleus where different acyl and carboxylate moieties were introduced (compounds 2-15). This study produced some interesting compounds endowed with good hA3 receptor affinity and selectivity. In addition, to find new insights about the structural requirements for hA3 receptor-ligand interaction, the tricyclic TQX ring was destroyed yielding some 1,2,4-triazole derivatives (compounds 16-23). These simplified compounds, though maintaining the crucial structural requirements for adenosine receptor-ligand interaction, have a very low hA3 adenosine receptor affinity, the only exception being compound 23 (1-[3-(4-methoxyphenyl)-1-phenyl-1H-1,2,4-triazol-5-yl]-3-phenylurea) endowed with a Ki value in the micro-molar range and high hA3 selectivity versus both hA1 and hA2A AR subtypes. Evaluation of the side products obtained in the herein reported synthetic pathways led to the identification of some new triazolo[1,5-a]quinoxalines as hA3AR antagonists (compounds 24-27). These derivatives, though lacking the classical structural requirements for the anchoring at the hA3 receptor site, show high hA3 affinity and in some case selectivity versus hA1 and hA2A subtypes. Molecular docking of the herein reported tricyclic and simplified derivatives was carried out to depict their hypothetical binding mode to our model of hA3 receptor.

Highly efficient cyanoimidation of aldehydes

"Chemical Equation Presented" Cyanoimidation of aldehydes using cyanamide as a nitrogen source and using NBS as an oxidant was achieved in high yields without the addition of a catalyst. The method has several advantages, Including mild conditions, simple workflow, and inexpensive reagents. The reaction proceeds in a one-pot manner, giving rise to the formation of intermolecular C-N and C-O bonds. Subsequently, the substituted W-cyanobenimidate products may also undergo a cyclization reaction to give 1,2,4-triazole derivatives in high yields.