An anticoagulant agent which comprises, as an active ingredient, an aromatic amidine derivative represented by the following general formula (1) or a salt thereof: ##STR1## wherein the group represented by ##STR2## is a group selected from indolyl, benzofuranyl, benzothienyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, naphthyl, tetrahydronaphthyl and indanyl; X is a single bond, an oxygen atom, a sulfur atom or a carbonyl group; and Y is a saturated or unsaturated 5- or 6-membered heterocyclic moiety or cyclic hydrocarbon moiety optionally having a substituent group, an amino group optionally having a substituent group or an aminoalkyl group optionally having a substituent group. The inventive compound has a high anticoagulant capacity based on its excellent FXa inhibition activity.
一种抗凝剂,其包括作为活性成分的芳香胺基衍
生物,其由以下一般式(1)或其盐所表示:##STR1## 其中由##STR2##表示的基团是从
吲哚基,
苯并呋喃基,
苯并噻吩基,
苯并咪唑基,苯并
噁唑基,
苯并噻唑基,
萘基,四氢
萘基和
吲哚基中选择的基团;X是单键,氧原子,
硫原子或羰基;Y是饱和或不饱和的5-或6-成员杂环基团或
环烃基团,可选地具有取代基团,可选地具有取代基团的
氨基团或可选地具有取代基团的
氨基烷基团。这种创新化合物具有基于其出色的FXa抑制活性的高抗凝能力。