You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name [2-[(3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)amino]-2-oxoethyl] 4-bromobenzoate ?
user
C17H13BrN2O3S
assistant