You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named [[(2R,3S,4R,5S)-3,4-dihydroxy-5-(4-methoxyphenoxy)oxolan-2-yl]methoxy-hydroxyphosphoryl] [[[(2R,3S,4R,5S)-5-(2,6-dioxo-3H-pyridin-5-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl] hydrogen phosphate is given. What is its corresponding molecular formula?
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C22H31NO23P4
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