Intermediates represented by the following formula:
1
(wherein R
1
is a hydrogen atom, an alkyl group, an aryl group, an aralkyl group or the like; X is a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an aralkoxycarbonyl group, a formyl group, —CH
2
—Y, —CHZ
1
Z
2
, —CH(OR
4
)OR
5
or the like), in the synthesis of biphenylamidine derivatives to be used as inhibitors for an activated blood coagulation factor X, and a process for preparing the same.
以下式子所代表的中间体:1(其中R1为氢原子、烷基、芳基、芳烷基或类似物;X为羧基、烷氧羰基、芳氧羰基、芳烷氧羰基、甲酰基、-
CH2-Y、-CHZ1Z2、-CH(OR4)OR5或类似物),用于合成作为激活的血凝因子X
抑制剂的
联苯胺衍
生物,并提供其制备方法。