Ergoline derivatives as dopamine receptor modulators

摘要

The invention provides compounds of formula I:; wherein R¹-R⁴ have any of the values defined in the specification, and salts thereof. The compounds are useful as dopamine receptor modulators for the treatment of diseases where modulation of dopamine receptors is implicated (e.g. sexual dysfunction, prolactinoma, Parkinson's disease, and Cushings disease).