Adenosine Receptor Prodrugs: Synthesis and Biological Activity of Derivatives of Potent, ArSelective Agonists
作者:Michel C. Maillard、Olga Nikodijević、Kathryn F. Lanoue、Deborah Berkich、Xiao-Duo J.I、Raymond Bartus、Kenneth A. Jacobson
DOI:10.1002/jps.2600830112
日期:1994.1
5'-blocked form, the adenosine agonists displayed highly diminished affinity for rat brain A1-adenosine receptors in binding assays. The dihydropyridine prodrug 29 was active in an assay of locomotor depression in mice, in which adenosine agonists are highly depressant. The behavior depression was not reversible by peripheral administration of a non-central nervous system active adenosine antagonist. In
强大的腺苷激动剂N6- [4-[[[[[[[[[[[(2-乙酰氨基乙基)氨基]羰基]甲基]苯胺基]羰基]甲基]苯基]腺苷的5'-酯衍生物(N-AcADAC; 1 )和N6-环戊基腺苷(CPA; 2)制备为前药。烷基酯或碳酸酯(旨在通过增加亲脂性而进入大脑)和1,4-二氢-1-甲基-3-[(吡啶基羰基)氧基]酯均设计为通过氧化还原递送系统集中在大脑中被合成。在5'阻滞形式下,腺苷激动剂在结合试验中对大鼠脑A1-腺苷受体的亲和力大大降低。二氢吡啶前药29在小鼠运动抑制的测定中具有活性,其中腺苷激动剂具有高度抑制作用。通过非中枢神经系统活性腺苷拮抗剂的外周给药,行为抑郁是不可逆的。在测定腺苷的外周作用(即抑制大鼠的脂解作用)时,母体化合物的效价很高,而二氢吡啶前药的效价要低得多。