preferred_name: (2R,3R,4S,5R,6R)-3,4-dihydroxy-5-{[(1E)-{3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methylidene]amino}-6-methyltetrahydro-2H-pyran-2-yl [(2R,3S,5R)-3-hydroxy-5-(thymin-1-yl)tetrahydrofuran-2-yl]methyl dihydrogen diphosphate