You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2R)-N-[(E)-5-amino-5-(3-methoxy-4-methylphenoxy)pent-4-en-2-yl]-N-carbamoyl-2-methylbutanamide into molecular formula.
user
C19H29N3O4
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