作者:Tetsuji Noguchi、Naoki Tanaka、Toyoki Nishimata、Riki Goto、Miho Hayakawa、Atsuhiro Sugidachi、Taketoshi Ogawa、Fumitoshi Asai、Yumi Matsui、Koichi Fujimoto
DOI:10.1248/cpb.54.163
日期:——
A series of bisamidine derivatives each having a ring structure in the center of the molecule was synthesized and their Factor Xa (FXa) inhibitory activities were evaluated. Among them, some indoline derivatives showed potent inhibitory activities in vitro. In particular, (R)-18a having an (R)-configuration at the 2-position of the indoline ring exhibited the most potent FXa inhibitory activity in vitro, more potent than DX-9065a. Furthermore, (R)-18a exhibited more potent anticoagulant activity than DX-9065a. We also succeeded in obtaining an X-ray crystal structure of FXa bound with (R)-18a.
合成了一系列每个分子中心具有环结构的双氨基衍生物,并评估了它们对Xa因子(FXa)的抑制活性。其中,一些吲哚啉衍生物在体外显示出明显的抑制活性。特别是,具有(R)-构型的(R)-18a在吲哚啉环的2位表现出最强的FXa抑制活性,优于DX-9065a。此外,(R)-18a的抗凝活性也超过了DX-9065a。我们还成功获得了与(R)-18a结合的FXa的X射线晶体结构。