Synthesis and in vitro evaluation of 2,3-dimethoxy-5-(fluoroalkyl)-substituted benzamides: high-affinity ligands for CNS dopamine D2 receptors
作者:John E. Bishop、Chester A. Mathis、John M. Gerdes、John M. Whitney、Allison M. Eaton、Richard B. Mailman
DOI:10.1021/jm00109a013
日期:1991.5
2- pyrrolidinyl)methyl]benzamides (with or without a 6-hydroxy group) were synthesized and evaluated as dopamine D2 receptor ligands. The parent acids were synthesized via the Claisen rearrangement of the appropriate O-allyl ethers, which were derived from o-vanillic acid or 2,3-dimethoxysalicylic acid. A decrease in reactivity was found to be characteristic of pentasubstituted benzoates, and difficulties
合成了许多2,3-二甲氧基-5-(氟代烷基)-N-[(1-乙基-2-吡咯烷基)甲基]苯甲酰胺(有或没有6-羟基),并评价为多巴胺D2受体配体。通过合适的O-烯丙基醚的Claisen重排合成母体酸,所述O-烯丙基醚衍生自邻香草酸或2,3-二甲氧基水杨酸。发现反应性的降低是五取代苯甲酸酯的特征,并且在将氟引入到乙基侧链上时遇到困难。(氟乙基)-和(氟丙基)水杨酰胺在抑制[3H]哌啶酮与D2受体结合方面的效力是相应苯甲酰胺的5倍。