Dopamine receptor model and its application in the design of a new class of rigid pyrrolo[2,3-g]isoquinoline antipsychotics
作者:Gary L. Olson、Ho-Chuen Cheung、Keith D. Morgan、John F. Blount、Louis Todaro、Leo Berger、Arnold B. Davidson、Edward Boff
DOI:10.1021/jm00141a002
日期:1981.9
antagonism) and one lipophilic auxiliary binding site are identified. The geometry is defined via the three-dimensional structures of drugs exhibiting receptor activity, including (R)-apomorphine, (+)-dexclamol, and molindone (whose crystal structure has been determined). A new conformationally rigid pyrrolo[2,3-g]isoquinoline derivative has been designed to conform to the receptor model. The compound
描述了一种抗精神病药与多巴胺受体相互作用的假想模型。该三维分子模型是根据各种类型的抗精神病药的药效基团与假定的受体蛋白氨基酸侧链取代基之间可能存在的分子间相互作用而开发的。确定了三个基本的结合位点(可能需要拮抗作用之一)和一个亲脂性的辅助结合位点。几何形状是通过具有受体活性的药物的三维结构定义的,包括(R)-阿扑吗啡,(+)-右旋糖醇和molindone(已确定其晶体结构)。一种新的构象刚性吡咯并[2,3-g]异喹啉衍生物已被设计为符合受体模型。化合物(+/-)-1(2,6-二甲基-3-乙基-4,4a,5,6,7,8,8a,9-八氢-4a,8a-反式-1H-吡咯并[2,3-g]异喹啉-4-酮; Ro 22-1319)表现出有效的抗精神病药样活性。该活性是立体特异性的,存在于(-)对映异构体中,通过(-)-1.HCl的X射线晶体结构分析预测和证实,该活性具有4aR,8aR绝对构型。