You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-amino-5-oxo-4-phenyl-N-(1-propan-2-ylpiperidin-4-yl)indeno[1,2-d]pyrimidine-8-carboxamide ?
user
C26H27N5O2
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