6-((4-amino-[1,1'-biphenyl]-3-yl)amino)-6-oxohexyl (1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate hydrochloride