You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-tert-butyl-5-(3-morpholin-4-yl-3-oxopropyl)pyrazolo[3,4-d]pyrimidin-4-one by IUPAC nomenclature, provide its molecular formula.
user
C16H23N5O3
assistant