You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-butan-2-yl-4-(4-cyanophenyl)-2-[(4,4,6-trimethyl-7-tricyclo[3.3.0.01,3]octanyl)amino]pyrimidine-5-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H33N5O
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