You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl 3-(2-methyl-1,4-oxazepan-4-yl)-1-(propan-2-ylamino)cyclopentane-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C16H30N2O3
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