Synthesis and spasmolytic action of 2-substituted thienopyrimidin-4-one derivatives
作者:Natale Alfredo Santagati、Orazio Prezzavento、Ennio Bousquet、Giuseppe Ronsisvalle、Santi Spampinato
DOI:10.1211/0022357021778871
日期:2010.2.18
In the search for novel compounds to treat disorders of smooth muscle function, efforts have focused on some 2-substituted thieno[2,3-d]pyrimidin-4-one derivatives that show interesting spasmolytic action. Our laboratories have developed a new series of quaternary salts of 2-substituted thieno[2,3-d]pyrimidin-4-one and thieno[3,2-d]pyrimidin-4-one isomers with therapeutic potential. Thesesubstances
在寻找用于治疗平滑肌功能障碍的新化合物时,研究工作集中在一些显示出有趣的解痉作用的2-取代的噻吩并[2,3-d]嘧啶-4-酮衍生物上。我们的实验室开发了一系列具有治疗潜力的2-取代的噻吩并[2,3-d]嘧啶-4-酮和噻吩并[3,2-d]嘧啶-4-酮异构体的季盐新系列。这些物质是从噻吩的简单衍生物开始制备的。他们对经皮刺激的豚鼠回肠的解痉活性进行了评估。活性最高的化合物(IC50 1.12-2.71 microM)7f-7h,12d和12f在硫代烷基链中具有末端哌啶子基核,在噻吩环中缺少两个甲基。磷酸二酯酶抑制剂可增强其对分离出的回肠的松弛活性(约20-25%)。化合物7f-h,12d和12f在抑制乙酰胆碱(IC50 26.7-41.4 microM)或组胺(IC50 41.5-63.4 microM)诱导的豚鼠回肠收缩方面效果较差,并且对大鼠心脏膜匀浆中的毒蕈碱受体具有中等的结合活性(M2部位;