You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance methyl (3R)-4-(4-amino-3,5-dibromophenyl)-4-oxo-3-[(4-pyridin-4-ylpiperidin-1-yl)methyl]butanoate .
user
C22H25Br2N3O3
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