You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(4-chlorophenyl)methyl]-2-[(2S,3S,6R)-3-(cyclohexylcarbamoylamino)-2-(hydroxymethyl)-3,6-dihydro-2H-pyran-6-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
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C22H30ClN3O4
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