(6R)-Naxifylline
(6R)-Naxifylline 6R)-BG9719) (ENX R-enantiomer) is the R-enantiomer of Naxifylline (HY-19240). (6R)-Naxifylline is a A1-adenosine antagonist with saluretic activity. (6R)-Naxifylline induces relaxation of spontaneous tone in guinea pig trachea.