425644-27-5

Upstream product

• 3612-20-2 1-phenylmethyl-4-piperidone 
• 826-85-7 1-phenylpyrazol-5-amine 
• 123-62-6 propionic acid anhydride 
• 425644-20-8 N-(1-phenylpyrazol-5-yl)-N-(1-benzyl-4-piperidyl)amine 

Downstream Products

• 425644-21-9 N-(1-phenylpyrazol-5-yl)-N-(4-piperidyl)propanamide 

Relevant academic research and scientific papers

Long-acting fentanyl analogues: synthesis and pharmacology of N-(1-phenylpyrazolyl)-N-(1-phenylalkyl-4-piperidyl)propanamides.

The synthesis of new fentanyl analogues in which the benzene ring of the propioanilido group has been replaced by phenylpyrazole is described. Antinociceptive activity was evaluated using the writhing and hot plate tests in mice. Two compounds, and, showe