Synthesis and structure-activity relationships of a series of novel benzopyran-containing platelet activating factor antagonists
作者:Denise E. Guinn、James B. Summers、H. Robin Heyman、Richard G. Conway、David A. Rhein、Daniel H. Albert、Terry Magoc、George W. Carter
DOI:10.1021/jm00089a016
日期:1992.5
A class of N-substituted tetrahydrobenzopyrano[3,4-c]pyridines, I, have been identified as antagonists of platelet activating factor (PAF). The structural features essential for PAF binding were determined by systematic modification of three sites in the molecule. While O-alkyl analogues had little effect on binding potency, N-alkyl analogues exhibited a wide range of activity. Structural changes in
一类N-取代的四氢苯并吡喃并[3,4-c]吡啶是血小板活化因子(PAF)的拮抗剂。PAF结合必不可少的结构特征是通过分子中三个位点的系统修饰来确定的。尽管O-烷基类似物对结合效能影响很小,但是N-烷基类似物表现出广泛的活性。核心环系统的结构变化通常导致结合活性的丧失。N和O取代基的优化导致类似物25-27在[3H] PAF结合测定中显示Ki值在131至167 nM之间。静脉内给药后,化合物23在PAF诱导的小鼠休克模型中也具有活性。