Ergoline derivatives of the formula I ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 represents a hydrogen atom or a methoxy group; R.sub.3 represents a hydrocarbon group having from 1 to 4 carbon atoms; X represents a nitrogen atom and Y represents an oxygen atom, a ##STR2## group wherein R.sub.4 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl or a phenyl group, R.sub.5 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl, a phenyl, an amino or di(C.sub.1 -C.sub.4 alkyl)amino group and the nitrogen atom of the group ##STR3## is not joined to the nitrogen atom represented by X, or Y represents a nitrogen atom and X represents an oxygen atom or a ##STR4## group wherein R.sub.4 is as above defined; and the pharmaceutically acceptable salt thereof; are useful for treatment of Parkinsonism and dyskinetic symptoms.
                            公式I中的Ergoline衍
生物
其中,R.sub.1代表氢原子或甲基基团; R.sub.2代表氢原子或甲氧基; R.sub.3代表具有1至4个碳原子的碳氢基团; X代表氮原子,Y代表氧原子,一个##STR2##基团,其中R.sub.4代表氢原子,C.sub.1-C.sub.4烷基或苯基,R.sub.5代表氢原子,C.sub.1-C.sub.4烷基,苯基,
氨基或二(C.sub.1-C.sub.4烷基)
氨基团,且##STR3##基团的氮原子不与X所代表的氮原子连接,或者Y代表氮原子,X代表氧原子或一个##STR4##基团,其中R.sub.4如上所定义;以及其药学上可接受的盐;用于治疗帕
金森病和运动障碍症状。