Conformationally restrained fentanyl analogs. 2. Synthesis and analgetic evaluation of perhydro-1,6-naphthyridin-2-ones
作者:Ronald F. Borne、E. Kim Fifer、I. W. Waters
DOI:10.1021/jm00376a007
日期:1984.10
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 8a possessed analgetic activity in the mouse tail-flick assay, reaffirming the sensitivity of this portion of 4-anilidopiperidine analgetics to conformational
芬太尼型镇痛药的N-酰基部分的构象柔韧性受到新型过氢1,6-萘啶-2-酮衍生物合成的限制。在小鼠甩尾试验中,顺式-融合衍生物(5a),反式-融合衍生物(5b)或烯酰胺8a均不具有镇痛活性,从而重申了这部分4-氨基哌啶镇痛剂对构象约束的敏感性。