Synthesis and Biological Evaluation of a Series of Substituted Benzo[a]phenanthridines as Agonists at D1 and D2 Dopamine Receptors
作者:Timm A. Knoerzer、Val J. Watts、David E. Nichols、Richard B. Mailman
DOI:10.1021/jm00016a009
日期:1995.8
to that of the lead compound DHX (4). Each analog was found to be a high-affinity full agonist with moderate selectivity for the D1 receptor. It is apparent from these results that the D1 receptor can tolerate small substituents at the 2-, 3-, and 4-positions of the pendent phenyl ring. On the basis of earlier studies showing that N-alkylation increases D2 selectivity, the 3-methyl N-n-propyl and 4-methyl
二氢己啶[4;(+/-)-trans-10,11-dihydroxy-5,6,6a,7,8,12b-六氢苯并[a]菲啶(DHX)],也是第一个高亲和力的全D1激动剂。已知具有明显的D2活性。本工作报道了在侧苯环(即2-,3-或4-位)上取代的一系列类似物的合成和药理活性。(+/-)-反式-2-甲基-10,11-二羟基-5,6,6a,7,8,12b-六氢苯并[a]菲啶(5)是高亲和力D1激动剂,具有约4- D1对D2的选择性要比DHX自身高出1倍。所有在2、3或4位上含有甲基或乙基(但不包括苯基)取代基的类似物的药理学特征与铅化合物DHX(4)相似。发现每个类似物是对D1受体具有中等选择性的高亲和力全激动剂。从这些结果显而易见,D1受体可以耐受侧苯环的2-,3-和4-位的小的取代基。根据先前的研究表明N-烷基化增加了D2的选择性,合成了3-甲基Nn-丙基和4-甲基Nn-丙基化合物11和13。