A compound represented by the following formula (I), a pharmacologically acceptable salt thereof or a hydrate thereof or a solvate thereof, which shows not only a C5a receptor antagonistic activity but also high activity in the biological availability, as compared to its racemate.
一种由下式(I)代表的化合物、其药理学上可接受的盐或其
水合物或其溶液,与它的外消旋物相比,不仅具有 C5a 受体拮抗活性,而且在
生物可用性方面也具有高活性。