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 1-[1-[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]ethylcarbamoyl]cyclobutane-1-carboxylic acid ?
user
C16H16BrN3O4
assistant