Process for the production of ergoline derivatives

摘要

PCT No. PCT/DE92/00088 Sec. 371 Date Oct. 7, 1992 Sec. 102(e) Date Oct. 7, 1992 PCT Filed Feb. 6, 1992 PCT Pub. No. WO92/13857 PCT Pub. Date Aug. 20, 1992.A process for the production of ergoline derivatives of general formula I is described (I) in which the bonds represent two single-bonds or a double bond and a single bond. R1 means a hydrogen atom or an alkyl group with 1-6 carbon atoms R2 symbolizes a hydrogen atom or an alkyl group with 1-6 carbon atoms, R3 represents a carboxyl group or a grouping of formula -CONR4R5 or -NHCQNR6R7 with R4 and R5 meaning hydrogen or an alkyl radical with 1-6 carbons atoms optionally substituted by a hydroxy group and R6 and R7 meaning an alkyl group containing 1-4 carbon atoms and Q meaning an oxygen or sulfur atom.