报道了在苯环中带有对位取代基,苯甲基与苯基之间以亚甲基或双亚甲基分离的芬太尼类似物的制备,以及苯乙酰取代丙酰作为N-酰基取代物。虽然检测到的所有对位取代基都降低了大鼠的抗痛觉效力,但这种类似物中的大多数比吗啡更有效,而p-F、I和Me衍生物的活性仅比芬太尼低几倍。将苯甲基与苯分离会降低效力,而N-苯乙基类似物保持合理的活性(>吗啡)。所有苯乙酰类似物的效力都很低或无效。附加了可能遇到的“设计药物”的类似物的质谱诊断细节。
The preparation of analogues of fentanyl with para substituents in the anilino aromatic ring, anilino nitrogen separated from phenyl by methylene or bimethylene, and phenacyl replacing propionyl as the N-acyl substituent is reported. Although all para substituents examined depressed antinociceptive potency in rats, most analogues of this kind were more effective than morphine and the p-F, I, and Me derivatives were only a few-fold less active than fentanyl. Separation of anilino nitrogen from phenyl lowered potency with N-phenethyl analogues retaining reasonable levels of activity (> morphine). All the phenacyl analogues were of low potency or inactive. Diagnostic details of the mass spectra of analogues likely to be encountered as ‘designer drugs’ are appended.
报道了在苯环中带有对位取代基,苯甲基与苯基之间以亚甲基或双亚甲基分离的芬太尼类似物的制备,以及苯乙酰取代丙酰作为N-酰基取代物。虽然检测到的所有对位取代基都降低了大鼠的抗痛觉效力,但这种类似物中的大多数比吗啡更有效,而p-F、I和Me衍生物的活性仅比芬太尼低几倍。将苯甲基与苯分离会降低效力,而N-苯乙基类似物保持合理的活性(>吗啡)。所有苯乙酰类似物的效力都很低或无效。附加了可能遇到的“设计药物”的类似物的质谱诊断细节。