You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named methyl 2-[[[5-[3-[3-[3-[4-amino-9-[tert-butyl(dimethyl)silyl]oxy-6-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,2-dioxo-1,7-dioxa-2lambda6-thiaspiro[4.4]non-3-en-8-yl]-5-methyl-2,6-dioxopyrimidin-1-yl]propyl]-5-methyl-2,4-dioxopyrimidin-1-yl]-3-hydroxyoxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate is given. What is its corresponding molecular formula?
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C47H73N6O17PSSi2
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