A-86929 is a potent and selective dopamine D1 receptor agonist with a pKi of 7.3. It significantly induces rotational behavior in a 6-OHDA-induced unilateral nigral lesion rat model and improves motor function in an MPTP-induced Parkinson's disease marmoset model. Furthermore, A-86929 shows potential value in reducing cocaine-induced craving behavior in rats and reversing Haloperidol-induced cognitive deficits in rhesus monkeys. The compound is useful for researching neurological disorders.