| 摘要 |
A description is given of the preparation of ergolene derivatives with an action lowering blood pressure and the formula I <IMAGE> in which R1 and R2 are each hydrogen or an alkyl group with 1 to 4 carbon atoms, or else together form an alkylidene chain with a maximum of 5 carbon atoms, and their salts with acids. Corresponding compounds unsaturated in position 2,3 are reduced selectively in position 2,3 and the resulting compounds of the formula I are converted where appropriate into their acid addition salts. |
