You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(3-methyl-1,2,4-oxadiazol-5-yl)ethyl]-3-[(1R)-1-(3-propan-2-yloxyphenyl)ethyl]urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H24N4O3
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