You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,4S,5R)-5-(4-amino-5-methyl-2-oxopyrimidin-1-yl)-2-[[[(2R,5R)-2-ethyl-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-4-(2-methoxyethoxy)oxolan-3-yl] [(2R,4S,5R)-3-[[(2R,4S,5R)-3-[[(2R,4S,5R)-3-[[(2R,4S,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3-hydroxy-4-(2-methoxyethoxy)oxolan-2-yl]methoxy-hydroxyphosphinothioyl]oxy-4-(2-methoxyethoxy)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphinothioyl]oxy-4-(2-methoxyethoxy)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-4-(2-methoxyethoxy)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl hydrogen phosphate is the IUPAC name of a molecule. Please give its molecular formula.
user
C75H111N14O44P5S3
assistant