Wiktionary
doxanthrine
n. A synthetic compound which is a potent and selective full agonist for the dopamine D1 receptor.
Wikipedia
Doxanthrine
Doxanthrine is a synthetic compound which is a potent and selective full agonist for the dopamine D receptor. Doxanthrine has been shown to be orally active in producing contralateral rotation in the 6-hydroxy-dopamine rat model of Parkinson's disease.