Ergoline derivatives and their use as somatostatin receptor antagonists
 The invention provides compounds of formula I ##STR1## wherein R.sub.1 to R.sub.6 are as defined in the description, and a process for preparing them. The compounds of formula I are useful as pharmaceuticals. 
Novartis AG
A A A C A A A
A61P A61P A61P C07D A61P A61P A61P
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Peter Robert Paul Peter
Stutz Swoboda Pfaeffli Neumann