You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[[(2S,4R)-2-[2-(4-chlorophenyl)ethyl]-4-[(4-pyrrolidin-1-ylphenoxy)methyl]-1,3-dioxolan-2-yl]methyl]imidazole;oxalic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H32ClN3O7
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