Compounds of general formula I: ##STR1## wherein: each of R.sup.1 -R.sup.8, k, and V represent disclosed functional groups that have been chosen such that all disclosed variations of compound I and their pharmaceutically and veterinarily acceptable acid addition salts and hydrates are antagonists of platelet activating factor (PAF) and as such are useful in the treatment or amelioration of various diseases or disorders mediated by PAF.
通式I的化合物:##STR1## 其中:R.sup.1 至 R.sup.8,k和V中的每个都表示已选择的已公开的功能基团,使得化合物I的所有公开变体及其药学和兽医学可接受的酸盐和
水合物均为血小板活化因子(PAF)的拮抗剂,因此在治疗或缓解由PAF介导的各种疾病或疾患方面是有用的。