There are provided ergoline derivatives of the formula (I)
wherein R, represents a hydrogen atom or a methyl group, R2 represents a hydrogen or halogen atom or a methyl group, R3 represents a hydrogen atom or a methoxy group, R4 represents a hydrocarbon group having from 1 to 4 carbon atoms; each of X and W independently represents a hydrogen atom, a methyl group, a chlorine atom or a methoxy group, and n is 0, 1 or 2.
A method for their preparation is also provided. The compounds have strong anti-prolactin activity.
提供了式(I)的麦角啉衍
生物
其中 R 代表氢原子或甲基,R2 代表氢原子、卤素原子或甲基,R3 代表氢原子或甲氧基,R4 代表具有 1 至 4 个碳原子的烃基;X 和 W 各自独立地代表氢原子、甲基、
氯原子或甲氧基,n 为 0、1 或 2。
此外,还提供了一种制备方法。这些化合物具有很强的抗泌乳素活性。