Rational Design, Synthesis, and Structure−Activity Relationships of Novel Factor Xa Inhibitors: (2-Substituted-4-amidinophenyl)pyruvic and -propionic Acids
作者:Kazuyuki Sagi、Tadakiyo Nakagawa、Masahiro Yamanashi、Shingo Makino、Mitsuo Takahashi、Masaru Takayanagi、Kaoru Takenaka、Nobuyasu Suzuki、Seiji Oono、Noriyasu Kataoka、Kohki Ishikawa、Sayaka Shima、Yumiko Fukuda、Takashi Kayahara、Shunji Takehana、Yoichiro Shima、Kazumi Tashiro、Hiroshi Yamamoto、Ryota Yoshimoto、Seinosuke Iwata、Takashi Tsuji、Kuniya Sakurai、Masataka Shoji
DOI:10.1021/jm020485x
日期:2003.5.1
An inhibitor of factor Xa (fXa), the m-substituted benzamidine AXC1578 (1a), was structurally modified with the aim of increasing its potency. In particular, pyruvic acid and propionic acid substituents were incorporated into the P1 benzamidine moiety to introduce a favorable interaction with the oxy-anion hole in the catalytic triad region of fXa. This strategy was based on computational docking studies
为了提高其效价,结构上修饰了因子Xa的抑制剂(fXa),即m-取代的苯甲idine AXC1578(1a)。尤其是,丙酮酸和丙酸取代基被掺入P1苯甲to部分中,以与fXa催化三单元区中的氧阴离子孔形成有利的相互作用。该策略基于使用提取的fXa活性位点的计算对接研究。计算模型的有效性得到了1a-胰蛋白酶和3b-胰蛋白酶复合物的X射线晶体结构的支持(fXa和胰蛋白酶的活性位点周围的同源性很高)。上述修饰显着增加了对fXa的抑制活性,而相对于凝血酶,fXa的高选择性得以维持或增强。化合物3b,3c,3e,