You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [[(3aR,4R,6R,6aS)-4-(2,4-dioxopyrimidin-1-yl)-2-phenyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methoxy-hydroxyphosphoryl] [[[(2S,3R,4S,5S)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl] hydrogen phosphate by IUPAC nomenclature, provide its molecular formula.
user
C25H30N4O23P4
assistant