Stereochemical studies on medicinal agents. 25. Absolute configuration and analgetic potency of .beta.-1,2-dimethyl-4-phenyl-4-(propionyloxy)piperidine enantiomers
作者:David S. Fries、Richard P. Dodge、Hakon Hope、Philip S. Portoghese
DOI:10.1021/jm00343a002
日期:1982.1
Enantiomers of beta-1,2-dimethyl-4-phenyl-4-(propionyloxy)piperidine (4) were employed as probes to demonstrate that opioid receptors are capable of distinguishing between the enantiotopic edges (the Ogston effect) of the piperidine ring. These enantiomers, (-)- and (+)-4.HCl, were prepared by esterification of the corresponding alcohols, (+)- and (-)-4a. Single crystal X-ray studies of (-)-4a.HCl
β-1,2-二甲基-4-苯基-4-(丙酰氧基)哌啶的对映体(4)被用作探针,以证明阿片样物质受体能够区分哌啶环的对映体边缘(Ogston效应)。这些对映体(-)-和(+)-4.HCl是通过相应的醇(+)-和(-)-4a酯化制备的。(-)-4a.HCl的单晶X射线研究表明,它具有2R,4S绝对构型。在小鼠中进行的无痛测试(热板)和受体结合研究表明,(-)-(2S,4R)-4.HCl的效价约为其对映体的十倍。该结果与非手性4-苯基哌啶与阿片样物质受体相互作用中的奥格斯顿效应的作用是一致的。另外,