You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl N-[2-[3-[[[(E)-3-cyclopentylbut-2-enoyl]amino]methyl]anilino]-2-oxoethyl]carbamate into molecular formula.
user
C23H33N3O4
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