You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(2R,3R,4S,5R,6R)-6-[[1-[(2R,4S,5R)-4-[tert-butyl(dimethyl)silyl]oxy-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]methoxy]-3,4,5-tris[(2-methoxyacetyl)oxy]oxan-2-yl]methyl 2-methoxyacetate into its molecular formula.
user
C40H68N2O19Si2
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