A new class of anti-thrombosis hexahydropyrazino-[1′,2′:1,6]pyrido-[3,4-b]-indole-1,4-dions: Design, synthesis, logK determination, and QSAR analysis
作者:Jiawang Liu、Guofeng Wu、Guohui Cui、Wei-Xuan Wang、Ming Zhao、Chao Wang、Ziding Zhang、Shiqi Peng
DOI:10.1016/j.bmc.2007.06.012
日期:2007.9.1
(tetrahydro-beta-carboline-3-carboxy-l-amino acid benzylesters, 2-aminoacyltetrahydro-beta-carboline-3-carboxylic acid benzylesters) were prepared and used for the cyclization to form 5a-t. Coupling hydrochloric acid salt of tetrahydro-beta-carboline-3-carboxylic acid esters and Boc-amino acids in the reported literature usually generates very low yield products accompanied by racemization. However, in our case, the
基于N-[(3S)]-1,2,3,4-四氢-β-咔啉-3-羧基] -1-赖氨酸在乙酸水溶液(5%)和大鼠中的环化血浆给出了相同的产物,并假设环化产物具有抗血栓活性,我们报道了20种六氢吡嗪并[1',2':1,6]吡啶并[ 3,4-b]吲哚-1,4-dion(5a-t)作为潜在的抗血栓形成剂。制备了两种中间体(四氢-β-咔啉-3-羧基-1-氨基酸苄酯,2-氨基酰基四氢-β-咔啉-3-羧酸苄酯),并用于环化形成5a-t。在已报道的文献中,四氢-β-咔啉-3-羧酸酯的盐酸盐与Boc-氨基酸的偶联通常产生非常低的收率产物,并伴随着消旋作用。然而,在我们的情况下,四氢-β-咔啉-3-羧酸苄酯的游离碱以高收率且没有外消旋作用产生了所需的产物。来自体外和体内研究的抗血栓形成结果表明,5a-t可能是一类新型的抗血栓形成剂,口服有效有效浓度为0.5μmol/ kg。此外,使用e-dragon服务器生成的分子