You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 3-[2-(5-bromothiophen-2-yl)-2-oxoethyl]-3-hydroxy-5-methyl-1H-indol-2-one using the IUPAC nomenclature.
user
C15H12BrNO3S
assistant