Compounds of formula (I):
 and the quaternary ammonium derivatives thereof, especially compounds in which L represents a group
 have tachykinin receptor antagonist activity and exhibit an activity against both the NK1 receptors and the NK2 receptors.
                            式(I)化合物:
 及其季
铵盐衍
生物,特别是其中 L 代表一个基团的化合物
 具有速激肽受体拮抗剂活性,对 NK1 受体和 NK2 受体均有活性。