Synthesis of 1,4-Diphenylbutadiene Derivatives: Novel Inducer of Tissue-Type Plasminogen Activator (t-PA) in Cultured Bovine Endothelial Cells
作者:Hiroshi Sai、Tsuyoshi Ogiku、Hiroshi Ohmizu、Akio Ohtani
DOI:10.1248/cpb.54.1686
日期:——
(E,E)-1,4-Diphenylbutadiene derivatives were synthesized by utilizing the Stobbe reaction of dimethyl succinate as a key step. Their stereoisomers were also synthesized stereoselectively by means of the cross-coupling reaction of the vinylstannanes and the vinylbromides, which were obtained from the propiolic acid esters by stereoselective hydrostannation, as a key step. To discover novel stimulators of fibrinolysis in vascular endothelial cells, the synthesized compounds were added to cultured bovine endothelial cells to determine the activity of the plasminogen activator in the conditioned medium. Of the synthesized compounds, three compounds were found to stimulate the activity of the plasminogen activator in endothelial cells. In addtition, these compounds inhibited thrombus formation in a rat model of venous thrombosis.
(E,E)-1,4-二苯基丁二烯衍生物通过采用二甲基琥珀酸酯的Stobbe反应作为关键步骤合成。它们的立体异构体也通过交叉偶联反应以立体选择性合成,该反应中使用的乙烯基锡化合物和乙烯基溴化物是通过对丙炔酸酯进行立体选择性的氢锡化反应获得的。为了发现新型的血管内皮细胞纤溶刺激剂,将合成的化合物添加到培养的牛内皮细胞中,以确定条件培养基中纤溶酶原激活剂的活性。在合成的化合物中,有三种化合物被发现能够刺激内皮细胞中纤溶酶原激活剂的活性。此外,这些化合物在大鼠静脉血栓形成模型中抑制了血栓形成。