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-[(3S,4S)-4-(3-bromophenoxy)-1-(5-chloro-1-benzofuran-2-carbonyl)piperidin-3-yl]-1-piperidin-1-ylethanone ?
user
C27H28BrClN2O4
assistant