摘要:
化合物的化学式为:##STR1## 其中:Ar代表未取代或取代有卤素、甲基或(C.sub.1-C.sub.4)烷氧基的吡啶-2-基或苯基;R.sub.1代表甲基基团;R.sub.11代表氢原子;或R.sub.1和R.sub.11一起代表--(CH.sub.2).sub.3--基团;R.sub.2代表羟基、(C.sub.1-C.sub.7)烷氧基、(C.sub.1-C.sub.7)酰氧基、氰基、--NR.sub.6 R.sub.7基团、--NR.sub.3 COR.sub.4基团、--NR.sub.3 COOR.sub.8基团、--NR.sub.3 SO.sub.2 R.sub.9基团、--NR.sub.3 CONR.sub.10 R.sub.12基团、(C.sub.1-C.sub.7)酰基、(C.sub.1-C.sub.7)烷氧羰基、--CONR.sub.10 R.sub.12基团、--CH.sub.2 OH基团、(C.sub.1-C.sub.7)烷氧甲基、(C.sub.1-C.sub.7)酰氧甲基、(C.sub.1-C.sub.7)烷基氨基羰氧甲基、--CH.sub.2 NR.sub.13 R.sub.14基团、--CH.sub.2 NR.sub.3 COR.sub.4基团、--CH.sub.2 NR.sub.3 COOR.sub.8基团、--CH.sub.2 NR.sub.3 SO.sub.2 R.sub.9基团、--CH.sub.2 NR.sub.3 CONR.sub.10 R.sub.12基团;或R.sub.2构成与哌嗪环邻近碳原子之间的双键;或Ar和R.sub.2与它们附着的碳原子一起构成式子##STR2##,作为NK.sub.3拮抗剂。