申请人:Takeda Pharmaceutical Company Limited
公开号:EP1867331A1
公开(公告)日:2007-12-19
The present invention relates to a thrombin receptor antagonist containing a compound represented by the formula (I)
wherein R1a, R1b and R2 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group, or an optionally substituted alkoxy, R3 is a group represented by the formula -NHCOR4, -NHSO2R5, -NHCON(R6a) (R6b), -NHCOOR7 or -CONHR8 wherein R4, R5, R6a, R6b, R7 and R8 are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group and the like), ring A is monocyclic aromatic ring optionally further having substituent(s), R1a and R1b are optionally bonded to each other to form an optionally substituted nitrogen-containing non-aromatic heterocycle, or a salt thereof or a prodrug thereof. The thrombin receptor antagonist of the present invention has a thrombin receptor (particularly PAR-1) antagonistic action and is useful for the prophylaxis or treatment of PAR-1 mediated pathological condition or disease.
本发明涉及一种凝血酶受体拮抗剂,其中含有由式(I)代表的化合物
其中 R1a、R1b 和 R2 各为氢原子、任选取代的烃基、任选取代的杂环基团或任选取代的烷氧基,R3 为由式 -NHCOR4、-NHSO2R5、-NHCON(R6a) (R6b)、-NHCOOR7 或 -CONHR8 所代表的基团,其中 R4、R5、R6a、R6b、R7 和 R8 各为氢原子、任选取代的烃基、任选取代的杂环基等),环 A 是单环芳香环,任选进一步具有取代基,R1a 和 R1b 任选相互键合以形成任选取代的含氮非芳香杂环,或其盐或其原药。本发明的凝血酶受体拮抗剂具有凝血酶受体(尤其是 PAR-1)拮抗作用,可用于预防或治疗 PAR-1 介导的病理状态或疾病。