Compounds of formula I
1
in which R
1
, R
2
, R
3
, each X, L, Y, Cy, Lp, D and n have the meanings as set out in the specification, and corresponding compounds in which the unsubstituted or substituted amidine group is replaced with an unsubstituted or substituted aminomethyl group, are useful as serine protease inhibitors.
                            具有式I1的化合物,其中R1、R2、R3、每个X、L、Y、Cy、Lp、D和n的含义如规范中所述,并且对应的化合物中,未取代或取代的酰胺基团被未取代或取代的
氨甲基基团所取代,可用作
丝氨酸蛋白酶抑制剂。