Stereospecific synthesis of (2 S )-2-methyl-3-(2′,6′-dimethyl-4′-hydroxyphenyl)-propionic acid (Mdp) and its incorporation into an opioid peptide
作者:Yixin Lu、Grazyna Weltrowska、Carole Lemieux、Nga N Chung、Peter W Schiller
DOI:10.1016/s0960-894x(00)00660-0
日期:2001.2
To examine the effect of replacing the N-terminal amino group in opioid peptides with a methyl group on biological activity, a stereospecific synthesis of the tyrosine analogue (2S)-2-methyl-3-(2',6'-dimethyl-4'-hydroxyphenyl)-propionic acid (Mdp) was performed. The enkephalin analogue (2S)-Mdp-D-Ala-Gly-Phe-Leu-NH2 turned out to be a quite potent delta opioid antagonist and a somewhat less potent
若要检查用甲基取代阿片肽中的N末端氨基对生物活性的影响,酪氨酸类似物(2S)-2-甲基-3-(2',6'-二甲基-4)的立体有择合成进行了'-羟基苯基)-丙酸(Mdp)。脑啡肽类似物(2S)-Mdp-D-Ala-Gly-Phe-Leu-NH2证明是一种非常有效的δ阿片类拮抗剂,而效力稍弱的mu拮抗剂,表明带正电荷的N末端氨基不是是阿片肽与δ和μ受体结合的必要条件,但可能是信号转导所必需的。