Leucine Enkephalin Analogues Containing a Conformationally Restrained N-Terminal Amino Acid Residue
作者:Trevor Deeks、Peter A. Crooks、Roger D. Waigh
DOI:10.1002/jps.2600730408
日期:1984.4
Three analogues of leucine enkephalin, in which the terminal tyrosine-1 residue has been replaced by conformationally restrained aromatic amino acids, have been synthesized by classical solution methods. Their opiate agonist potencies on electrically stimulated guinea pig ileum and mouse vas deferens preparations were determined and compared with morphine, Met enkephalin, and Leu enkephalin. None of
通过经典溶液法合成了亮氨酸脑啡肽的三个类似物,其中末端酪氨酸-1残基已被构象受限的芳香族氨基酸取代。测定了它们在电刺激的豚鼠回肠和小鼠输精管上的鸦片激动剂效力,并将它们与吗啡,Met脑啡肽和Leu脑啡肽进行了比较。当在上述组织制剂上评价或在皮下和脑室内给药后在小鼠中通过热板试验评价时,这些类似物均不具有镇痛作用。