You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[(2R,3R,4S,5R)-5-(3-diethoxyphosphorylpropoxymethyl)-3,4-dihydroxyoxolan-2-yl]pyrimidine-2,4-dione .
user
C16H27N2O9P
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