Oxyhomologues of Anandamide and Related Endolipids: Chemoselective Synthesis and Biological Activity
作者:Giovanni Appendino、Alberto Minassi、Luca Berton、Aniello Schiano Moriello、Maria Grazia Cascio、Luciano De Petrocellis、Vincenzo Di Marzo
DOI:10.1021/jm051240y
日期:2006.4.1
lsilyloxy)ethyl]hydroxylamine (7) with the PPAA and the DCC/HOBT protocols. Reversal of the cannabinoid CB(1)/CB(2) receptor affinity ratio was observed for the first time in a derivative of anandamide (the O-alkyl-N-acyl hydroxylamine 1b), while the other oxyhomologues (1c and 1d) showed only marginal cannabimimetic activity. Compounds with unsaturated acyl chains generally retained vanilloid activity
内脂N-花生四烯酸乙醇胺(anandamide,AEA,1a),N-油酰乙醇胺(OEA,2a)和N-棕榈酰乙醇胺(PEA,3a)的三种酰胺氧基同系物是利用化学选择性方法制备的,并利用了它们的易获得性O- [2-(三异丙基甲硅烷氧基)乙基]羟胺(6)以及在用PPAA和DCC / HOBT方案酰化N- [2-(叔丁基二苯基甲硅烷氧基)乙基]羟胺(7)时观察到的令人惊讶的互补选择性。首次在大麻素衍生物(O-烷基-N-酰基羟胺1b)中观察到了大麻素CB(1)/ CB(2)受体亲和力比的反转,而其他氧同源物(1c和1d)显示仅边缘大麻素活性。与它们相应的乙醇酰胺相比,具有不饱和酰基链的化合物通常保留了类香草酸活性,并显示出对FAAH的增加的稳定性。综上所述,这些观察结果表明,氧同源性对内源性乙醇酰胺的药效学和药代动力学特性均具有显着影响,这表明该方法与酰胺药效基团的修饰具有普遍的相关性。