You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-amino-2-butoxy-9-[[4-[6-[(piperidin-4-ylamino)methyl]pyridin-2-yl]oxyphenyl]methyl]-7H-purin-8-one into its molecular formula.
user
C27H34N8O3
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