You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [4-[(3aR,6R,6aR)-4-(2-amino-6,8-dioxo-7-prop-2-enyl-1H-purin-9-yl)-6-(hydroxymethyl)-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-2-yl]phenyl] acetate by IUPAC nomenclature, provide its molecular formula.
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C22H23N5O8
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