New macrocyclic plasmin inhibitors containing a C-terminal P1 benzylamine group were synthesized. Their N-terminal substitution provided analogues with sub-nanomolar Ki values. Additional inhibitors containing an asymmetric linker possess Ki values close to 2 nM. For the first time, crystal structures of these macrocyclic inhibitors in complex with a Ser195Ala microplasmin mutant were determined, which
合成了含有 C 末端 P1
苄胺基团的新型大环纤溶酶
抑制剂。它们的 N 端取代提供了具有亚纳摩尔K i值的类似物。含有不对称接头的其他
抑制剂具有接近 2 nM 的K i值。首次确定了这些与 Ser195Ala 微纤溶酶突变体复合的大环
抑制剂的晶体结构,这解释了它们出色的效力和选择性。