(1R,2R)-1-(2-(dimethylamino)pyrimidin-5-yl)-2-((S)-3-methyl-6,7-dihydro-4H-[1,2,3]triazolo[5,1-c][1,4]oxazin-7-yl)ethane-1,2-diol

(1R,2R)-1-(2-(dimethylamino)pyrimidin-5-yl)-2-((S)-3-ethyl-6,7-dihydro-4H-[1,2,3]triazolo[5,1-c][1,4]oxazin-7-yl)ethane-1,2-diol