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 [[1-[(3aR,4R,6R,6aR)-6-(hydroxymethyl)-2-oxo-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-2-oxopyrimidin-4-yl]amino] (2S)-2-amino-3-hydroxypropanoate is given. What is its corresponding molecular formula?
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C13H16N4O9
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