91157-36-7

Upstream product

• 123-75-1 pyrrolidine 
• 39742-60-4 1-(2-phenylethyl)-4-piperidinone 

Downstream Products

• 91157-45-8 trans-3-(2-carbomethoxyethyl)-4-(phenylamino)-1-(2-phenylethyl)piperidine 
• 91157-44-7 cis-3-(2-carbomethoxyethyl)-4-(phenylamino)-1-(2-phenylethyl)piperidine 
• 91157-38-9 1-phenyl-6-(2-phenylethyl)-1,2,3,4,5,6,7,8-octahydro-1,6-naphthyridin-2-one 
• 91157-35-6 3-(2-carbomethoxyethyl)-1-(2-phenlethyl)-4-piperidone 

Relevant academic research and scientific papers

Conformationally Restrained Fentanyl Analogues. 2. Synthesis and Analgetic Evaluation of Perhydro-1,6-naphthyridin-2-ones

Conformational flexibility of the N-acyl portion of fentanyl-type analgetics was restricted through the synthesis of novel perhydro-1,6-naphthyridin-2-one derivatives.Neither the cis-fused derivative (5a), the trans-fused derivative (5b), nor the enamide