4-amino-1-((2R,3R,4S,5R)-5-((((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)oxy)methyl)-3,4-dihydroxytetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one